I've got an app that is served up by Hypnotoad, with no reverse proxy.It
has 15 workers, with 2 clients allowed apiece. The app is launched via
hypnotoad in foreground mode, as it is being run underneath a superdaemon
service manager.
I am seeing the following in the log/production.log:
[Wed Apr 1 16:28:12 2015] [error] Worker 119914 has no heartbeat, restarting.
[Wed Apr 1 16:28:21 2015] [error] Worker 119910 has no heartbeat, restarting.
[Wed Apr 1 16:28:21 2015] [error] Worker 119913 has no heartbeat, restarting.
[Wed Apr 1 16:28:22 2015] [error] Worker 119917 has no heartbeat, restarting.
[Wed Apr 1 16:28:22 2015] [error] Worker 119909 has no heartbeat, restarting.
[Wed Apr 1 16:28:27 2015] [error] Worker 119907 has no heartbeat, restarting.
[Wed Apr 1 16:28:34 2015] [error] Worker 119905 has no heartbeat, restarting.
[Wed Apr 1 16:28:42 2015] [error] Worker 119904 has no heartbeat, restarting.
[Wed Apr 1 16:30:12 2015] [error] Worker 119912 has no heartbeat, restarting.
[Wed Apr 1 16:31:23 2015] [error] Worker 119918 has no heartbeat, restarting.
[Wed Apr 1 16:32:18 2015] [error] Worker 119911 has no heartbeat, restarting.
[Wed Apr 1 16:32:22 2015] [error] Worker 119916 has no heartbeat, restarting.
The workers are killed, however, the workers are never restarted.
When I run an strace, the manager process appears to be valiantly trying to
kill the (now expired) workers:
Process 119878 attached - interrupt to quit
restart_syscall(<... resuming interrupted call ...>) = 0
kill(119906, SIGKILL) = 0
kill(119917, SIGKILL) = 0
kill(119905, SIGKILL) = 0
kill(119910, SIGKILL) = 0
kill(119904, SIGKILL) = 0
kill(119914, SIGKILL) = 0
kill(119916, SIGKILL) = 0
kill(119908, SIGKILL) = 0
kill(119913, SIGKILL) = 0
kill(119915, SIGKILL) = 0
kill(119918, SIGKILL) = 0
kill(119912, SIGKILL) = 0
kill(119909, SIGKILL) = 0
kill(119911, SIGKILL) = 0
kill(119907, SIGKILL) = 0
stat("/xxx/xxx/xxx/hypnotoad.pid", {st_mode=S_IFREG|0644, st_size=6, ...}) = 0
poll([{fd=4, events=POLLIN|POLLPRI}], 1, 1000) = 0 (Timeout)
kill(119906, SIGKILL) = 0
kill(119917, SIGKILL) = 0
kill(119905, SIGKILL) = 0
kill(119910, SIGKILL) = 0
kill(119904, SIGKILL) = 0
kill(119914, SIGKILL) = 0
kill(119916, SIGKILL) = 0
kill(119908, SIGKILL) = 0
kill(119913, SIGKILL) = 0
kill(119915, SIGKILL) = 0
kill(119918, SIGKILL) = 0
kill(119912, SIGKILL) = 0
kill(119909, SIGKILL) = 0
kill(119911, SIGKILL) = 0
kill(119907, SIGKILL) = 0
stat("/xxx/xxx/xxx/hypnotoad.pid", {st_mode=S_IFREG|0644, st_size=6, ...}) = 0
poll([{fd=4, events=POLLIN|POLLPRI}], 1, 1000^C <unfinished ...>
Process 119878 detached
How can I troubleshoot this further to determine:
1. Why does Hypnotoad think it still needs to kill non-existent
processes?
2. Why isn't it starting new ones?
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