We restart an apache server every day because RAM usage reaches its limit.
Though of value See this serverfault answer, I dont think lowering the MaxClients in the apache configuration is a solution to the unknown root problem.
The apache processes below appear unusually large in MB and long in time. Does this mean there is memory leakage. Does this mean we should lower MaxRequestsPerChild settings?
See http://www.devside.net/articles/apache-performance-tuning
Can you make sense out of the below data?
Below is an extract of what
$top with M
returns:
20839 www-data 20 0 1008m 359m 22m S 4 4.8 1:52.61 apache2
20844 www-data 20 0 1008m 358m 22m S 1 4.8 1:51.85 apache2
20842 www-data 20 0 1008m 356m 22m S 1 4.8 1:54.60 apache2
20845 www-data 20 0 944m 353m 22m S 0 4.7 1:51.80 apache2
and then investigating a single process with
$sudo strace -p 20839
returns only this one line, which is cryptic, for me:
restart_syscall(<... resuming interrupted call ...> <unfinished ...>
Any insights? Thanks.