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Stream: prevent repeated event notifications after eof.

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When client or upstream connection is closed, level-triggered read event
remained active until the end of the session leading to cpu hog.  Now the flag
NGX_CLOSE_EVENT is used to unschedule the event.
This commit is contained in:
Roman Arutyunyan 2015-04-22 19:55:04 +03:00
parent 25ddb49dbe
commit 39386c951c
1 changed files with 4 additions and 1 deletions
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5
src/stream/ngx_stream_proxy_module.c
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@ -814,6 +814,7 @@ ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream,
size_t size;
ssize_t n;
ngx_buf_t *b;
ngx_uint_t flags;
ngx_connection_t *c, *pc, *src, *dst;
ngx_log_handler_pt handler;
ngx_stream_upstream_t *u;
@ -911,7 +912,9 @@ ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream,
return NGX_DONE;
}
if (ngx_handle_read_event(src->read, 0) != NGX_OK) {
flags = src->read->eof ? NGX_CLOSE_EVENT : 0;
if (ngx_handle_read_event(src->read, flags) != NGX_OK) {
ngx_stream_proxy_finalize(s, NGX_ERROR);
return NGX_ERROR;
}