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POPHP-FPM taking too much memory
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  1. POPHP-FPM taking too much memory
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    copied!<p>I am using Nginx+PHP-FPM with php 5.3.6 and it was working well for weeks. Suddenly each PHP-FPM child started taking too much memory. In initial weeks each PHP-FPM child used to take 3MB now few children are taking 700MB. Can anybody guide on this?</p> <pre><code>This script I used to get memory usage by child pid http://www.pixelbeat.org/scripts/ps_mem.py. It could be verified by 'top' method too top output:: ------------------------------ ------------------------------ 28419 daemon 20 0 844m 757m 4200 S 0 6.4 0:14.27 php-fpm 16788 daemon 20 0 700m 614m 4632 S 0 5.2 0:28.34 php-fpm 29450 daemon 20 0 669m 581m 3548 S 0 4.9 0:08.31 php-fpm 17881 daemon 20 0 642m 556m 4108 S 0 4.7 0:14.83 php-fpm 19048 daemon 20 0 642m 555m 4108 S 0 4.7 0:08.86 php-fpm 11956 daemon 20 0 97612 10m 5476 S 4 0.1 0:39.57 php-fpm 11993 daemon 20 0 97560 10m 5188 S 4 0.1 0:39.18 php-fpm 11925 daemon 20 0 97328 10m 5144 D 3 0.1 0:38.68 php-fpm 11953 daemon 20 0 97748 10m 5172 S 4 0.1 0:38.51 php-fpm </code></pre> <p>php-fpm.conf:</p> <pre><code>/etc/php-fpm/php-fpm.conf listen = 127.0.0.1:9000 user = daemon group = daemon pm = dynamic pm.max_children = 2000 pm.start_servers = 50 pm.min_spare_servers = 40 pm.max_spare_servers = 90 pm.max_requests = 10000 </code></pre> <p>Following are the more debug inputs:</p> <p>pmap::</p> <pre><code>pmap 28419 0000000000b52000 96K rw--- [ anon ] 0000000001a49000 1668K rw--- [ anon ] 0000000001bea000 208K rw--- [ anon ] 0000000001c1e000 770476K rw--- [ anon ] </code></pre> <p>strace::</p> <pre><code>strace -p 28419 Process 28419 attached - interrupt to quit restart_syscall(&lt;... resuming interrupted call ...&gt;) = 0 recvfrom(4, 0x1bda1d0, 8196, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout) recvfrom(4, 0x1bda1d0, 8196, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=4, events=POLLIN}], 1, 5000^C &lt;unfinished ...&gt; </code></pre>
 

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