mirror of
https://github.com/clearlinux/uwsgi.git
synced 2026-06-16 02:15:48 +00:00
Roberto De Ioris
1222 lines
31 KiB
C
1222 lines
31 KiB
C
#include "uwsgi.h"
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extern struct uwsgi_server uwsgi;
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void worker_wakeup() {
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}
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void uwsgi_master_cleanup_hooks(void) {
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int j;
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// could be an inherited atexit hook
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if (uwsgi.mywid > 0)
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return;
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uwsgi.cleaning = 1;
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for (j = 0; j < uwsgi.gp_cnt; j++) {
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if (uwsgi.gp[j]->master_cleanup) {
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uwsgi.gp[j]->master_cleanup();
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}
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}
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for (j = 0; j < 256; j++) {
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if (uwsgi.p[j]->master_cleanup) {
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uwsgi.p[j]->master_cleanup();
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}
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}
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}
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int uwsgi_calc_cheaper(void) {
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int i;
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static time_t last_check = 0;
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int check_interval = uwsgi.shared->options[UWSGI_OPTION_MASTER_INTERVAL];
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if (!last_check)
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last_check = uwsgi_now();
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time_t now = uwsgi_now();
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if (!check_interval)
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check_interval = 1;
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if ((now - last_check) < check_interval)
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return 1;
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last_check = now;
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int needed_workers = uwsgi.cheaper_algo();
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if (needed_workers > 0) {
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 1 && uwsgi.workers[i].pid == 0) {
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if (uwsgi_respawn_worker(i))
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return 0;
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needed_workers--;
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}
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if (needed_workers == 0)
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break;
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}
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}
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else if (needed_workers < 0) {
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int oldest_worker = 0;
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time_t oldest_worker_spawn = INT_MAX;
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 0 && uwsgi.workers[i].pid > 0) {
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if (uwsgi.workers[i].last_spawn < oldest_worker_spawn) {
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oldest_worker_spawn = uwsgi.workers[i].last_spawn;
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oldest_worker = i;
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}
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}
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}
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if (oldest_worker > 0) {
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#ifdef UWSGI_DEBUG
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uwsgi_log("worker %d should die...\n", oldest_worker);
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#endif
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uwsgi.workers[oldest_worker].cheaped = 1;
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uwsgi.workers[oldest_worker].manage_next_request = 0;
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// wakeup task in case of wait
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(void) kill(uwsgi.workers[oldest_worker].pid, SIGWINCH);
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}
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}
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return 1;
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}
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/*
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-- Cheaper, spare algorithm, adapted from old-fashioned spare system --
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when all of the workers are busy, the overload_count is incremented.
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as soon as overload_count is higher than uwsgi.cheaper_overload (--cheaper-overload options)
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at most cheaper_step (default to 1) new workers are spawned.
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when at least one worker is free, the overload_count is decremented and the idle_count is incremented.
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If overload_count reaches 0, the system will count active workers (the ones uncheaped) and busy workers (the ones running a request)
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if there is exacly 1 free worker we are in "stable state" (1 spare worker available). no worker will be touched.
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if the number of active workers is higher than uwsgi.cheaper_count and at least uwsgi.cheaper_overload cycles are passed from the last
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"cheap it" procedure, then cheap a worker.
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Example:
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10 processes
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2 cheaper
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2 cheaper step
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3 cheaper_overload
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1 second master cycle
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there are 7 workers running (triggered by some kind of spike activity).
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Of this, 6 are busy, 1 is free. We are in stable state.
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After a bit the spike disappear and idle_count start to increase.
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After 3 seconds (uwsgi.cheaper_overload cycles) the oldest worker will be cheaped. This will happens
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every seconds (uwsgi.cheaper_overload cycles) til the number of workers is == uwsgi.cheaper_count.
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If during the "cheap them all" procedure, an overload condition come again (another spike) the "cheap them all"
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will be interrupted.
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*/
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int uwsgi_cheaper_algo_spare(void) {
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int i;
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static uint64_t overload_count = 0;
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static uint64_t idle_count = 0;
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// step 1 -> count the number of busy workers
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 0 && uwsgi.workers[i].pid > 0) {
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// if a non-busy worker is found, the overload_count is decremented and stop the cycle
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if (uwsgi.workers[i].busy == 0) {
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if (overload_count > 0)
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overload_count--;
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goto healthy;
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}
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}
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}
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overload_count++;
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idle_count = 0;
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healthy:
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// are we overloaded ?
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if (overload_count > uwsgi.cheaper_overload) {
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#ifdef UWSGI_DEBUG
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uwsgi_log("overloaded !!!\n");
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#endif
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// activate the first available worker (taking step into account)
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int decheaped = 0;
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// search for cheaped workers
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 1 && uwsgi.workers[i].pid == 0) {
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decheaped++;
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if (decheaped >= uwsgi.cheaper_step)
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break;
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}
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}
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// reset overload
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overload_count = 0;
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// return the maximum number of workers to spawn
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return decheaped;
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}
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// we are no more overloaded
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else if (overload_count == 0) {
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// how many active workers ?
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int active_workers = 0;
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int busy_workers = 0;
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 0 && uwsgi.workers[i].pid > 0) {
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active_workers++;
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if (uwsgi.workers[i].busy == 1)
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busy_workers++;
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}
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}
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#ifdef UWSGI_DEBUG
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uwsgi_log("active workers %d busy_workers %d\n", active_workers, busy_workers);
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#endif
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// special condition: uwsgi.cheaper running workers and 1 free
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if (active_workers > busy_workers && active_workers - busy_workers == 1) {
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#ifdef UWSGI_DEBUG
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uwsgi_log("stable status: 1 spare worker\n");
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#endif
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return 0;
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}
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idle_count++;
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if (active_workers > uwsgi.cheaper_count && idle_count % uwsgi.cheaper_overload == 0) {
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// we are in "cheap them all"
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return -1;
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}
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}
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return 0;
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}
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/*
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-- Cheaper, backlog algorithm (supported only on Linux) --
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increse the number of workers when the listen queue is higher than uwsgi.cheaper_overload.
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Decrese when lower.
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*/
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int uwsgi_cheaper_algo_backlog(void) {
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int i;
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#ifdef __linux__
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int backlog = uwsgi.shared->options[UWSGI_OPTION_BACKLOG_STATUS];
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#else
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int backlog = 0;
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#endif
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if (backlog > (int) uwsgi.cheaper_overload) {
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// activate the first available worker (taking step into account)
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int decheaped = 0;
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// search for cheaped workers
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 1 && uwsgi.workers[i].pid == 0) {
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decheaped++;
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if (decheaped >= uwsgi.cheaper_step)
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break;
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}
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}
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// return the maximum number of workers to spawn
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return decheaped;
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}
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else if (backlog < (int) uwsgi.cheaper_overload) {
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int active_workers = 0;
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].cheaped == 0 && uwsgi.workers[i].pid > 0) {
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active_workers++;
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}
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}
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if (active_workers > uwsgi.cheaper_count) {
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return -1;
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}
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}
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return 0;
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}
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// reload uWSGI, close unneded file descriptor, restore the original environment and re-exec the binary
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void uwsgi_reload(char **argv) {
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int i;
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int waitpid_status;
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// call a series of waitpid to ensure all processes (gateways, mules and daemons) are dead
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for (i = 0; i < (ushared->gateways_cnt + uwsgi.daemons_cnt + uwsgi.mules_cnt); i++) {
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waitpid(WAIT_ANY, &waitpid_status, WNOHANG);
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}
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// call master cleanup hooks
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uwsgi_master_cleanup_hooks();
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// call atexit user exec
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uwsgi_exec_atexit();
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if (uwsgi.exit_on_reload) {
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uwsgi_log("uWSGI: GAME OVER (insert coin)\n");
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exit(0);
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}
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uwsgi_log("binary reloading uWSGI...\n");
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uwsgi_log("chdir() to %s\n", uwsgi.cwd);
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if (chdir(uwsgi.cwd)) {
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uwsgi_error("chdir()");
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}
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/* check fd table (a module can obviosly open some fd on initialization...) */
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uwsgi_log("closing all non-uwsgi socket fds > 2 (max_fd = %d)...\n", (int) uwsgi.max_fd);
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for (i = 3; i < (int) uwsgi.max_fd; i++) {
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int found = 0;
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struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
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while (uwsgi_sock) {
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if (i == uwsgi_sock->fd) {
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uwsgi_log("found fd %d mapped to socket %d (%s)\n", i, uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name);
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found = 1;
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break;
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}
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uwsgi_sock = uwsgi_sock->next;
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}
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uwsgi_sock = uwsgi.shared_sockets;
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while (uwsgi_sock) {
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if (i == uwsgi_sock->fd) {
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uwsgi_log("found fd %d mapped to shared socket %d (%s)\n", i, uwsgi_get_shared_socket_num(uwsgi_sock), uwsgi_sock->name);
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found = 1;
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break;
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}
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uwsgi_sock = uwsgi_sock->next;
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}
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if (!found) {
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if (uwsgi.has_emperor) {
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if (i == uwsgi.emperor_fd) {
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found = 1;
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}
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}
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}
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if (uwsgi.log_master) {
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if (uwsgi.original_log_fd > -1) {
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if (i == uwsgi.original_log_fd) {
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found = 1;
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}
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}
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if (uwsgi.shared->worker_log_pipe[0] > -1) {
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if (i == uwsgi.shared->worker_log_pipe[0]) {
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found = 1;
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}
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}
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if (uwsgi.shared->worker_log_pipe[1] > -1) {
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if (i == uwsgi.shared->worker_log_pipe[1]) {
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found = 1;
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}
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}
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}
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if (!found) {
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#ifdef __APPLE__
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fcntl(i, F_SETFD, FD_CLOEXEC);
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#else
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close(i);
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#endif
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}
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}
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#ifdef UWSGI_AS_SHARED_LIBRARY
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return;
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#else
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uwsgi_log("running %s\n", uwsgi.binary_path);
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uwsgi_flush_logs();
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argv[0] = uwsgi.binary_path;
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//strcpy (argv[0], uwsgi.binary_path);
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if (uwsgi.log_master) {
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if (uwsgi.original_log_fd > -1) {
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dup2(uwsgi.original_log_fd, 1);
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dup2(1, 2);
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}
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if (uwsgi.shared->worker_log_pipe[0] > -1) {
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close(uwsgi.shared->worker_log_pipe[0]);
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}
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if (uwsgi.shared->worker_log_pipe[1] > -1) {
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close(uwsgi.shared->worker_log_pipe[1]);
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}
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}
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execvp(uwsgi.binary_path, argv);
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uwsgi_error("execvp()");
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// never here
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exit(1);
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#endif
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}
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void master_check_cluster_nodes() {
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int i;
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for (i = 0; i < MAX_CLUSTER_NODES; i++) {
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struct uwsgi_cluster_node *ucn = &uwsgi.shared->nodes[i];
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if (ucn->name[0] != 0 && ucn->type == CLUSTER_NODE_STATIC && ucn->status == UWSGI_NODE_FAILED) {
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// should i retry ?
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if (uwsgi.master_cycles % ucn->errors == 0) {
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if (!uwsgi_ping_node(i, uwsgi.wsgi_req)) {
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ucn->status = UWSGI_NODE_OK;
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uwsgi_log("re-enabled cluster node %d/%s\n", i, ucn->name);
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}
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else {
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ucn->errors++;
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}
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}
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}
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else if (ucn->name[0] != 0 && ucn->type == CLUSTER_NODE_DYNAMIC) {
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// if the last_seen attr is higher than 30 secs ago, mark the node as dead
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if ((uwsgi.current_time - ucn->last_seen) > 30) {
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uwsgi_log_verbose("no presence announce in the last 30 seconds by node %s, i assume it is dead.\n", ucn->name);
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ucn->name[0] = 0;
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}
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}
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}
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}
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void uwsgi_fixup_fds(int wid, int muleid, struct uwsgi_gateway *ug) {
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int i;
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// close the cache server
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if (uwsgi.cache_server_fd != -1) {
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close(uwsgi.cache_server_fd);
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}
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if (uwsgi.master_process) {
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if (uwsgi.master_queue > -1)
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close(uwsgi.master_queue);
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// close gateways
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if (!ug) {
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for (i = 0; i < ushared->gateways_cnt; i++) {
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close(ushared->gateways[i].internal_subscription_pipe[0]);
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close(ushared->gateways[i].internal_subscription_pipe[1]);
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}
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}
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struct uwsgi_gateway_socket *ugs = uwsgi.gateway_sockets;
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while (ugs) {
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if (ug && !strcmp(ug->name, ugs->owner)) {
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ugs = ugs->next;
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continue;
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}
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// do not close shared sockets !!!
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if (!ugs->shared) {
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close(ugs->fd);
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}
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ugs = ugs->next;
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}
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// fix the communication pipe
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close(uwsgi.shared->worker_signal_pipe[0]);
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for (i = 1; i <= uwsgi.numproc; i++) {
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if (uwsgi.workers[i].signal_pipe[0] != -1)
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close(uwsgi.workers[i].signal_pipe[0]);
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if (i != wid) {
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if (uwsgi.workers[i].signal_pipe[1] != -1)
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close(uwsgi.workers[i].signal_pipe[1]);
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}
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}
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#ifdef UWSGI_SPOOLER
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if (uwsgi.i_am_a_spooler && uwsgi.i_am_a_spooler->pid != getpid()) {
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if (uwsgi.shared->spooler_signal_pipe[0] != -1)
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close(uwsgi.shared->spooler_signal_pipe[0]);
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if (uwsgi.shared->spooler_signal_pipe[1] != -1)
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close(uwsgi.shared->spooler_signal_pipe[1]);
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}
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#endif
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if (uwsgi.shared->mule_signal_pipe[0] != -1)
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close(uwsgi.shared->mule_signal_pipe[0]);
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if (muleid == 0) {
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if (uwsgi.shared->mule_signal_pipe[1] != -1)
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close(uwsgi.shared->mule_signal_pipe[1]);
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if (uwsgi.shared->mule_queue_pipe[1] != -1)
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close(uwsgi.shared->mule_queue_pipe[1]);
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}
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for (i = 0; i < uwsgi.mules_cnt; i++) {
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if (uwsgi.mules[i].signal_pipe[0] != -1)
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close(uwsgi.mules[i].signal_pipe[0]);
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if (muleid != i + 1) {
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if (uwsgi.mules[i].signal_pipe[1] != -1)
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close(uwsgi.mules[i].signal_pipe[1]);
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if (uwsgi.mules[i].queue_pipe[1] != -1)
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close(uwsgi.mules[i].queue_pipe[1]);
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}
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}
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for (i = 0; i < uwsgi.farms_cnt; i++) {
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if (uwsgi.farms[i].signal_pipe[0] != -1)
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close(uwsgi.farms[i].signal_pipe[0]);
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if (muleid == 0) {
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if (uwsgi.farms[i].signal_pipe[1] != -1)
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close(uwsgi.farms[i].signal_pipe[1]);
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if (uwsgi.farms[i].queue_pipe[1] != -1)
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close(uwsgi.farms[i].queue_pipe[1]);
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}
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}
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}
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}
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int uwsgi_respawn_worker(int wid) {
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int respawns = uwsgi.workers[wid].respawn_count;
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// we count the respawns before errors...
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uwsgi.workers[wid].respawn_count++;
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// ... same for update time
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uwsgi.workers[wid].last_spawn = uwsgi.current_time;
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// ... and memory/harakiri
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uwsgi.workers[wid].harakiri = 0;
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uwsgi.workers[wid].user_harakiri = 0;
|
|
uwsgi.workers[wid].pending_harakiri = 0;
|
|
uwsgi.workers[wid].rss_size = 0;
|
|
uwsgi.workers[wid].vsz_size = 0;
|
|
|
|
// internal statuses should be reset too
|
|
|
|
uwsgi.workers[wid].cheaped = 0;
|
|
uwsgi.workers[wid].busy = 0;
|
|
uwsgi.workers[wid].suspended = 0;
|
|
uwsgi.workers[wid].sig = 0;
|
|
|
|
// this is required for various checks
|
|
uwsgi.workers[wid].delta_requests = 0;
|
|
|
|
int i;
|
|
|
|
if (uwsgi.threaded_logger) {
|
|
pthread_mutex_lock(&uwsgi.threaded_logger_lock);
|
|
}
|
|
|
|
pid_t pid = uwsgi_fork(uwsgi.workers[wid].name);
|
|
|
|
if (pid == 0) {
|
|
signal(SIGWINCH, worker_wakeup);
|
|
signal(SIGTSTP, worker_wakeup);
|
|
uwsgi.mywid = wid;
|
|
uwsgi.mypid = getpid();
|
|
// pid is updated by the master
|
|
//uwsgi.workers[uwsgi.mywid].pid = uwsgi.mypid;
|
|
// OVERENGINEERING (just to be safe)
|
|
uwsgi.workers[uwsgi.mywid].id = uwsgi.mywid;
|
|
/*
|
|
uwsgi.workers[uwsgi.mywid].harakiri = 0;
|
|
uwsgi.workers[uwsgi.mywid].user_harakiri = 0;
|
|
uwsgi.workers[uwsgi.mywid].rss_size = 0;
|
|
uwsgi.workers[uwsgi.mywid].vsz_size = 0;
|
|
*/
|
|
// do not reset worker counters on reload !!!
|
|
//uwsgi.workers[uwsgi.mywid].requests = 0;
|
|
// ...but maintain a delta counter (yes this is racy in multithread)
|
|
//uwsgi.workers[uwsgi.mywid].delta_requests = 0;
|
|
//uwsgi.workers[uwsgi.mywid].failed_requests = 0;
|
|
//uwsgi.workers[uwsgi.mywid].respawn_count++;
|
|
//uwsgi.workers[uwsgi.mywid].last_spawn = uwsgi.current_time;
|
|
uwsgi.workers[uwsgi.mywid].manage_next_request = 1;
|
|
/*
|
|
uwsgi.workers[uwsgi.mywid].cheaped = 0;
|
|
uwsgi.workers[uwsgi.mywid].busy = 0;
|
|
uwsgi.workers[uwsgi.mywid].suspended = 0;
|
|
uwsgi.workers[uwsgi.mywid].sig = 0;
|
|
*/
|
|
|
|
// reset the apps count with a copy from the master
|
|
uwsgi.workers[uwsgi.mywid].apps_cnt = uwsgi.workers[0].apps_cnt;
|
|
|
|
uwsgi_fixup_fds(wid, 0, NULL);
|
|
|
|
uwsgi.my_signal_socket = uwsgi.workers[wid].signal_pipe[1];
|
|
|
|
if (uwsgi.master_process) {
|
|
if ((uwsgi.workers[uwsgi.mywid].respawn_count || uwsgi.cheap)) {
|
|
for (i = 0; i < 256; i++) {
|
|
if (uwsgi.p[i]->master_fixup) {
|
|
uwsgi.p[i]->master_fixup(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
else if (pid < 1) {
|
|
uwsgi_error("fork()");
|
|
}
|
|
else {
|
|
// the pid is set only in the master, as the worker should never use it
|
|
uwsgi.workers[wid].pid = pid;
|
|
|
|
if (respawns > 0) {
|
|
uwsgi_log("Respawned uWSGI worker %d (new pid: %d)\n", wid, (int) pid);
|
|
}
|
|
else {
|
|
uwsgi_log("spawned uWSGI worker %d (pid: %d, cores: %d)\n", wid, pid, uwsgi.cores);
|
|
}
|
|
}
|
|
|
|
if (uwsgi.threaded_logger) {
|
|
pthread_mutex_unlock(&uwsgi.threaded_logger_lock);
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uwsgi_manage_signal_cron(time_t now) {
|
|
|
|
struct tm *uwsgi_cron_delta;
|
|
int i;
|
|
|
|
uwsgi_cron_delta = localtime(&now);
|
|
|
|
if (uwsgi_cron_delta) {
|
|
|
|
// fix month
|
|
uwsgi_cron_delta->tm_mon++;
|
|
|
|
uwsgi_lock(uwsgi.cron_table_lock);
|
|
for (i = 0; i < ushared->cron_cnt; i++) {
|
|
|
|
struct uwsgi_cron *ucron = &ushared->cron[i];
|
|
int uc_minute, uc_hour, uc_day, uc_month, uc_week;
|
|
|
|
uc_minute = ucron->minute;
|
|
uc_hour = ucron->hour;
|
|
uc_day = ucron->day;
|
|
uc_month = ucron->month;
|
|
uc_week = ucron->week;
|
|
|
|
// negative values as interval -1 = * , -5 = */5
|
|
if (ucron->minute < 0) {
|
|
if ((uwsgi_cron_delta->tm_min % abs(ucron->minute)) == 0) {
|
|
uc_minute = uwsgi_cron_delta->tm_min;
|
|
}
|
|
}
|
|
if (ucron->hour < 0) {
|
|
if ((uwsgi_cron_delta->tm_hour % abs(ucron->hour)) == 0) {
|
|
uc_hour = uwsgi_cron_delta->tm_hour;
|
|
}
|
|
}
|
|
if (ucron->month < 0) {
|
|
if ((uwsgi_cron_delta->tm_mon % abs(ucron->month)) == 0) {
|
|
uc_month = uwsgi_cron_delta->tm_mon;
|
|
}
|
|
}
|
|
if (ucron->day < 0) {
|
|
if ((uwsgi_cron_delta->tm_mday % abs(ucron->day)) == 0) {
|
|
uc_day = uwsgi_cron_delta->tm_mday;
|
|
}
|
|
}
|
|
if (ucron->week < 0) {
|
|
if ((uwsgi_cron_delta->tm_wday % abs(ucron->week)) == 0) {
|
|
uc_week = uwsgi_cron_delta->tm_wday;
|
|
}
|
|
}
|
|
|
|
int run_task = 0;
|
|
// mday and wday are ORed
|
|
if (ucron->day >= 0 && ucron->week >= 0) {
|
|
if (uwsgi_cron_delta->tm_min == uc_minute && uwsgi_cron_delta->tm_hour == uc_hour && uwsgi_cron_delta->tm_mon == uc_month && (uwsgi_cron_delta->tm_mday == uc_day || uwsgi_cron_delta->tm_wday == uc_week)) {
|
|
run_task = 1;
|
|
}
|
|
}
|
|
else {
|
|
if (uwsgi_cron_delta->tm_min == uc_minute && uwsgi_cron_delta->tm_hour == uc_hour && uwsgi_cron_delta->tm_mon == uc_month && uwsgi_cron_delta->tm_mday == uc_day && uwsgi_cron_delta->tm_wday == uc_week) {
|
|
run_task = 1;
|
|
}
|
|
}
|
|
|
|
|
|
if (run_task == 1) {
|
|
// date match, signal it ?
|
|
if (now - ucron->last_job > 60) {
|
|
uwsgi_route_signal(ucron->sig);
|
|
ucron->last_job = now;
|
|
}
|
|
}
|
|
|
|
}
|
|
uwsgi_unlock(uwsgi.cron_table_lock);
|
|
}
|
|
else {
|
|
uwsgi_error("localtime()");
|
|
}
|
|
|
|
}
|
|
|
|
void uwsgi_manage_command_cron(time_t now) {
|
|
|
|
struct tm *uwsgi_cron_delta;
|
|
|
|
struct uwsgi_cron *current_cron = uwsgi.crons;
|
|
int uc_minute, uc_hour, uc_day, uc_month, uc_week;
|
|
|
|
uwsgi_cron_delta = localtime(&now);
|
|
|
|
|
|
if (!uwsgi_cron_delta) {
|
|
uwsgi_error("localtime()");
|
|
return;
|
|
}
|
|
|
|
// fix month
|
|
uwsgi_cron_delta->tm_mon++;
|
|
|
|
while (current_cron) {
|
|
|
|
uc_minute = current_cron->minute;
|
|
uc_hour = current_cron->hour;
|
|
uc_day = current_cron->day;
|
|
uc_month = current_cron->month;
|
|
uc_week = current_cron->week;
|
|
|
|
// negative values as interval -1 = * , -5 = */5
|
|
if (current_cron->minute < 0) {
|
|
if ((uwsgi_cron_delta->tm_min % abs(current_cron->minute)) == 0) {
|
|
uc_minute = uwsgi_cron_delta->tm_min;
|
|
}
|
|
}
|
|
if (current_cron->hour < 0) {
|
|
if ((uwsgi_cron_delta->tm_hour % abs(current_cron->hour)) == 0) {
|
|
uc_hour = uwsgi_cron_delta->tm_hour;
|
|
}
|
|
}
|
|
if (current_cron->month < 0) {
|
|
if ((uwsgi_cron_delta->tm_hour % abs(current_cron->month)) == 0) {
|
|
uc_month = uwsgi_cron_delta->tm_mon;
|
|
}
|
|
}
|
|
if (current_cron->day < 0) {
|
|
if ((uwsgi_cron_delta->tm_mday % abs(current_cron->day)) == 0) {
|
|
uc_day = uwsgi_cron_delta->tm_mday;
|
|
}
|
|
}
|
|
if (current_cron->week < 0) {
|
|
if ((uwsgi_cron_delta->tm_wday % abs(current_cron->week)) == 0) {
|
|
uc_week = uwsgi_cron_delta->tm_wday;
|
|
}
|
|
}
|
|
|
|
int run_task = 0;
|
|
// mday and wday are ORed
|
|
if (current_cron->day >= 0 && current_cron->week >= 0) {
|
|
if (uwsgi_cron_delta->tm_min == uc_minute && uwsgi_cron_delta->tm_hour == uc_hour && uwsgi_cron_delta->tm_mon == uc_month && (uwsgi_cron_delta->tm_mday == uc_day || uwsgi_cron_delta->tm_wday == uc_week)) {
|
|
run_task = 1;
|
|
}
|
|
}
|
|
else {
|
|
if (uwsgi_cron_delta->tm_min == uc_minute && uwsgi_cron_delta->tm_hour == uc_hour && uwsgi_cron_delta->tm_mon == uc_month && uwsgi_cron_delta->tm_mday == uc_day && uwsgi_cron_delta->tm_wday == uc_week) {
|
|
run_task = 1;
|
|
}
|
|
}
|
|
|
|
|
|
if (run_task == 1) {
|
|
|
|
// date match, run command ?
|
|
if (now - current_cron->last_job > 60) {
|
|
//call command
|
|
if (current_cron->command) {
|
|
if (uwsgi_run_command(current_cron->command, NULL, -1) >= 0) {
|
|
uwsgi_log_verbose("[uWSGI-cron] running %s\n", current_cron->command);
|
|
}
|
|
}
|
|
current_cron->last_job = now;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
current_cron = current_cron->next;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
struct uwsgi_stats *uwsgi_master_generate_stats() {
|
|
|
|
int i;
|
|
|
|
struct uwsgi_stats *us = uwsgi_stats_new(8192);
|
|
|
|
if (uwsgi_stats_keyval_comma(us, "version", UWSGI_VERSION))
|
|
goto end;
|
|
|
|
#ifdef __linux__
|
|
if (uwsgi_stats_keylong_comma(us, "listen_queue", (unsigned long long) uwsgi.shared->options[UWSGI_OPTION_BACKLOG_STATUS]))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "listen_queue_errors", (unsigned long long) uwsgi.shared->options[UWSGI_OPTION_BACKLOG_ERRORS]))
|
|
goto end;
|
|
#endif
|
|
|
|
int signal_queue = 0;
|
|
if (ioctl(uwsgi.shared->worker_signal_pipe[1], FIONREAD, &signal_queue)) {
|
|
uwsgi_error("uwsgi_master_generate_stats() -> ioctl()\n");
|
|
}
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "signal_queue", (unsigned long long) signal_queue))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "load", (unsigned long long) uwsgi.shared->load))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "pid", (unsigned long long) getpid()))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "uid", (unsigned long long) getuid()))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "gid", (unsigned long long) getgid()))
|
|
goto end;
|
|
|
|
char *cwd = uwsgi_get_cwd();
|
|
if (uwsgi_stats_keyval_comma(us, "cwd", cwd)) {
|
|
free(cwd);
|
|
goto end;
|
|
}
|
|
free(cwd);
|
|
|
|
if (uwsgi.daemons) {
|
|
if (uwsgi_stats_key(us, "daemons"))
|
|
goto end;
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
|
|
struct uwsgi_daemon *ud = uwsgi.daemons;
|
|
while (ud) {
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
if (uwsgi_stats_keyval_comma(us, "cmd", ud->command))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "pid", (unsigned long long) ud->pid))
|
|
goto end;
|
|
if (uwsgi_stats_keylong(us, "respawns", (unsigned long long) (ud->respawns - 1)))
|
|
goto end;
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
if (ud->next) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
ud = ud->next;
|
|
}
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
|
|
if (uwsgi_stats_key(us, "locks"))
|
|
goto end;
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
|
|
struct uwsgi_lock_item *uli = uwsgi.registered_locks;
|
|
while (uli) {
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
if (uwsgi_stats_keylong(us, uli->id, (unsigned long long) uli->pid))
|
|
goto end;
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
if (uli->next) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
uli = uli->next;
|
|
}
|
|
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_key(us, "sockets"))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
|
|
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
|
|
while (uwsgi_sock) {
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keyval_comma(us, "name", uwsgi_sock->name))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keyval_comma(us, "proto", uwsgi_sock->proto_name ? uwsgi_sock->proto_name : "uwsgi"))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "queue", (unsigned long long) uwsgi_sock->queue))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "shared", (unsigned long long) uwsgi_sock->shared))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong(us, "can_offload", (unsigned long long) uwsgi_sock->can_offload))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
|
|
uwsgi_sock = uwsgi_sock->next;
|
|
if (uwsgi_sock) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_key(us, "workers"))
|
|
goto end;
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
|
|
for (i = 0; i < uwsgi.numproc; i++) {
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "id", (unsigned long long) uwsgi.workers[i + 1].id))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "pid", (unsigned long long) uwsgi.workers[i + 1].pid))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "requests", (unsigned long long) uwsgi.workers[i + 1].requests))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "delta_requests", (unsigned long long) uwsgi.workers[i + 1].delta_requests))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "exceptions", (unsigned long long) uwsgi.workers[i + 1].exceptions))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "harakiri_count", (unsigned long long) uwsgi.workers[i + 1].harakiri_count))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "signals", (unsigned long long) uwsgi.workers[i + 1].signals))
|
|
goto end;
|
|
|
|
if (ioctl(uwsgi.workers[i + 1].signal_pipe[1], FIONREAD, &signal_queue)) {
|
|
uwsgi_error("uwsgi_master_generate_stats() -> ioctl()\n");
|
|
}
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "signal_queue", (unsigned long long) signal_queue))
|
|
goto end;
|
|
/*
|
|
if (uwsgi_stats_keylong_comma(us, "static_offload_threads", (unsigned long long) uwsgi.workers[i + 1].static_offload_threads))
|
|
goto end;
|
|
*/
|
|
|
|
if (uwsgi.workers[i + 1].cheaped) {
|
|
if (uwsgi_stats_keyval_comma(us, "status", "cheap"))
|
|
goto end;
|
|
}
|
|
else if (uwsgi.workers[i + 1].suspended && !uwsgi.workers[i + 1].busy) {
|
|
if (uwsgi_stats_keyval_comma(us, "status", "pause"))
|
|
goto end;
|
|
}
|
|
else {
|
|
if (uwsgi.workers[i + 1].sig) {
|
|
if (uwsgi_stats_keyvalnum_comma(us, "status", "sig", (unsigned long long) uwsgi.workers[i + 1].signum))
|
|
goto end;
|
|
}
|
|
else if (uwsgi.workers[i + 1].busy) {
|
|
if (uwsgi_stats_keyval_comma(us, "status", "busy"))
|
|
goto end;
|
|
}
|
|
else {
|
|
if (uwsgi_stats_keyval_comma(us, "status", "idle"))
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "rss", (unsigned long long) uwsgi.workers[i + 1].rss_size))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "vsz", (unsigned long long) uwsgi.workers[i + 1].vsz_size))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "running_time", (unsigned long long) uwsgi.workers[i + 1].running_time))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "last_spawn", (unsigned long long) uwsgi.workers[i + 1].last_spawn))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "respawn_count", (unsigned long long) uwsgi.workers[i + 1].respawn_count))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "tx", (unsigned long long) uwsgi.workers[i + 1].tx))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "avg_rt", (unsigned long long) uwsgi.workers[i + 1].avg_response_time))
|
|
goto end;
|
|
|
|
// applications list
|
|
if (uwsgi_stats_key(us, "apps"))
|
|
goto end;
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
|
|
int j;
|
|
|
|
for (j = 0; j < uwsgi.workers[i + 1].apps_cnt; j++) {
|
|
struct uwsgi_app *ua = &uwsgi.workers[i + 1].apps[j];
|
|
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "id", (unsigned long long) j))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "modifier1", (unsigned long long) ua->modifier1))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keyvaln_comma(us, "mountpoint", ua->mountpoint, ua->mountpoint_len))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "startup_time", ua->startup_time))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "requests", ua->requests))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "exceptions", ua->exceptions))
|
|
goto end;
|
|
|
|
if (ua->chdir) {
|
|
if (uwsgi_stats_keyval(us, "chdir", ua->chdir))
|
|
goto end;
|
|
}
|
|
else {
|
|
if (uwsgi_stats_keyval(us, "chdir", ""))
|
|
goto end;
|
|
}
|
|
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
|
|
if (j < uwsgi.workers[i + 1].apps_cnt - 1) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
|
|
// cores list
|
|
if (uwsgi_stats_key(us, "cores"))
|
|
goto end;
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
|
|
for (j = 0; j < uwsgi.cores; j++) {
|
|
struct uwsgi_core *uc = &uwsgi.workers[i + 1].cores[j];
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
if (uwsgi_stats_keylong_comma(us, "id", (unsigned long long) j))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "requests", (unsigned long long) uc->requests))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "static_requests", (unsigned long long) uc->static_requests))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong(us, "in_request", (unsigned long long) uc->in_request))
|
|
goto end;
|
|
|
|
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
|
|
if (j < uwsgi.cores - 1) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
|
|
if (i < uwsgi.numproc - 1) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
|
|
#ifdef UWSGI_SPOOLER
|
|
struct uwsgi_spooler *uspool = uwsgi.spoolers;
|
|
if (uspool) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
if (uwsgi_stats_key(us, "spoolers"))
|
|
goto end;
|
|
if (uwsgi_stats_list_open(us))
|
|
goto end;
|
|
while (uspool) {
|
|
if (uwsgi_stats_object_open(us))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keyval_comma(us, "dir", uspool->dir))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "pid", (unsigned long long) uspool->pid))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "tasks", (unsigned long long) uspool->tasks))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong_comma(us, "respawns", (unsigned long long) uspool->respawned))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_keylong(us, "running", (unsigned long long) uspool->running))
|
|
goto end;
|
|
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
uspool = uspool->next;
|
|
if (uspool) {
|
|
if (uwsgi_stats_comma(us))
|
|
goto end;
|
|
}
|
|
}
|
|
if (uwsgi_stats_list_close(us))
|
|
goto end;
|
|
}
|
|
#endif
|
|
|
|
if (uwsgi_stats_object_close(us))
|
|
goto end;
|
|
|
|
return us;
|
|
end:
|
|
free(us->base);
|
|
free(us);
|
|
return NULL;
|
|
}
|
|
|
|
void uwsgi_register_cheaper_algo(char *name, int (*func) (void)) {
|
|
|
|
struct uwsgi_cheaper_algo *uca = uwsgi.cheaper_algos;
|
|
|
|
if (!uca) {
|
|
uwsgi.cheaper_algos = uwsgi_malloc(sizeof(struct uwsgi_cheaper_algo));
|
|
uca = uwsgi.cheaper_algos;
|
|
}
|
|
else {
|
|
while (uca) {
|
|
if (!uca->next) {
|
|
uca->next = uwsgi_malloc(sizeof(struct uwsgi_cheaper_algo));
|
|
uca = uca->next;
|
|
break;
|
|
}
|
|
uca = uca->next;
|
|
}
|
|
|
|
}
|
|
|
|
uca->name = name;
|
|
uca->func = func;
|
|
uca->next = NULL;
|
|
|
|
#ifdef UWSGI_DEBUG
|
|
uwsgi_log("[uwsgi-cheaper-algo] registered \"%s\"\n", uca->name);
|
|
#endif
|
|
}
|
|
|
|
void trigger_harakiri(int i) {
|
|
int j;
|
|
uwsgi_log("*** HARAKIRI ON WORKER %d (pid: %d, try: %d) ***\n", i, uwsgi.workers[i].pid, uwsgi.workers[i].pending_harakiri + 1);
|
|
if (uwsgi.harakiri_verbose) {
|
|
#ifdef __linux__
|
|
int proc_file;
|
|
char proc_buf[4096];
|
|
char proc_name[64];
|
|
ssize_t proc_len;
|
|
|
|
if (snprintf(proc_name, 64, "/proc/%d/syscall", uwsgi.workers[i].pid) > 0) {
|
|
memset(proc_buf, 0, 4096);
|
|
proc_file = open(proc_name, O_RDONLY);
|
|
if (proc_file >= 0) {
|
|
proc_len = read(proc_file, proc_buf, 4096);
|
|
if (proc_len > 0) {
|
|
uwsgi_log("HARAKIRI: -- syscall> %s", proc_buf);
|
|
}
|
|
close(proc_file);
|
|
}
|
|
}
|
|
|
|
if (snprintf(proc_name, 64, "/proc/%d/wchan", uwsgi.workers[i].pid) > 0) {
|
|
memset(proc_buf, 0, 4096);
|
|
|
|
proc_file = open(proc_name, O_RDONLY);
|
|
if (proc_file >= 0) {
|
|
proc_len = read(proc_file, proc_buf, 4096);
|
|
if (proc_len > 0) {
|
|
uwsgi_log("HARAKIRI: -- wchan> %s\n", proc_buf);
|
|
}
|
|
close(proc_file);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
if (uwsgi.workers[i].pid > 0) {
|
|
for (j = 0; j < uwsgi.gp_cnt; j++) {
|
|
if (uwsgi.gp[j]->harakiri) {
|
|
uwsgi.gp[j]->harakiri(i);
|
|
}
|
|
}
|
|
for (j = 0; j < 256; j++) {
|
|
if (uwsgi.p[j]->harakiri) {
|
|
uwsgi.p[j]->harakiri(i);
|
|
}
|
|
}
|
|
|
|
kill(uwsgi.workers[i].pid, SIGUSR2);
|
|
// allow SIGUSR2 to be delivered
|
|
sleep(1);
|
|
kill(uwsgi.workers[i].pid, SIGKILL);
|
|
if (!uwsgi.workers[i].pending_harakiri)
|
|
uwsgi.workers[i].harakiri_count++;
|
|
uwsgi.workers[i].pending_harakiri++;
|
|
}
|
|
// to avoid races
|
|
|
|
}
|