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| author | Maxim Dounin <mdounin@mdounin.ru> | 2021-12-30 01:08:46 +0300 |
|---|---|---|
| committer | Maxim Dounin <mdounin@mdounin.ru> | 2021-12-30 01:08:46 +0300 |
| commit | 96c342e56035a9676180d03b4659d5b05b9c6b07 (patch) | |
| tree | b723bd96fa33a0aeb570cbbfd6121d0b94289193 /src/event/ngx_event.c | |
| parent | 614726621797f1267c41f8a8e488eeefff8bdf7f (diff) | |
| download | nginx-96c342e56035a9676180d03b4659d5b05b9c6b07.tar.gz nginx-96c342e56035a9676180d03b4659d5b05b9c6b07.tar.bz2 | |
Events: fixed balancing between workers with EPOLLEXCLUSIVE.
Linux with EPOLLEXCLUSIVE usually notifies only the process which was first
to add the listening socket to the epoll instance. As a result most of the
connections are handled by the first worker process (ticket #2285). To fix
this, we re-add the socket periodically, so other workers will get a chance
to accept connections.
Diffstat (limited to 'src/event/ngx_event.c')
| -rw-r--r-- | src/event/ngx_event.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/event/ngx_event.c b/src/event/ngx_event.c index 0d187ca33..47229b507 100644 --- a/src/event/ngx_event.c +++ b/src/event/ngx_event.c @@ -55,6 +55,7 @@ ngx_uint_t ngx_accept_events; ngx_uint_t ngx_accept_mutex_held; ngx_msec_t ngx_accept_mutex_delay; ngx_int_t ngx_accept_disabled; +ngx_uint_t ngx_use_exclusive_accept; #if (NGX_STAT_STUB) @@ -644,6 +645,8 @@ ngx_event_process_init(ngx_cycle_t *cycle) #endif + ngx_use_exclusive_accept = 0; + ngx_queue_init(&ngx_posted_accept_events); ngx_queue_init(&ngx_posted_next_events); ngx_queue_init(&ngx_posted_events); @@ -889,6 +892,8 @@ ngx_event_process_init(ngx_cycle_t *cycle) if ((ngx_event_flags & NGX_USE_EPOLL_EVENT) && ccf->worker_processes > 1) { + ngx_use_exclusive_accept = 1; + if (ngx_add_event(rev, NGX_READ_EVENT, NGX_EXCLUSIVE_EVENT) == NGX_ERROR) { |