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Add information on process-forking for TCP connections to metrics.

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Add the relevant information to the metrics and to the output of
dump_cache() (which is called when dnsmasq receives SIGUSR1).
Hence, users not collecting metrics will still be able to
troubleshoot with SIGUSR1. In addition to the current usage,
dump_cache() contains the information on the highest usage
since it was last called.
This commit is contained in:
Damian Sawicki authored and Simon Kelley committed 2023-11-30 15:55:51 +00:00
1 parent 744231d995
commit 69877f565a
7 files changed
+23 -3
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src/cache.c
+6 -1
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@@ -1895,7 +1895,12 @@ void dump_cache(time_t now)
#endif
blockdata_report();
my_syslog(LOG_INFO, _("child processes for TCP requests: in use %zu, highest since last SIGUSR1 %zu, max allowed %zu."),
daemon->metrics[METRIC_TCP_CONNECTIONS],
daemon->max_procs_used,
daemon->max_procs);
daemon->max_procs_used = daemon->metrics[METRIC_TCP_CONNECTIONS];
/* sum counts from different records for same server */
for (serv = daemon->servers; serv; serv = serv->next)
serv->flags &= ~SERV_MARK;