RE: [squid-users] Memory usage and mem_node size

 
>
> Hi,
>
> I have a Squid 2.5STABLE5 running on Linux (RHL 8.0, 1.5 GB
> RAM) using
> 28 GB disk space and serving 5,000 users. It has been in use
> for more a
> year now.
>
> In the last few days, the squid process has grown drastically
> in size.
> Usally, squid has around 400 MB in memory. At some point, it starts
> allocating more and more RAM. I've seen it using 1.2 GB RAM and
> aggressive paging.
>
> The proxy has 1.8 million objects on disk and 150 MB for the metadata
> should be enough.
>
> In cachemgr.cgi / Memory Utilization I can see mem_node
> growing bigger
> and bigger when process size increases.
>
> What's mem_node's purpose? I've seen mem_node allocating 800
> MB when the
> squid process had 1.2 GB.
>
>
> Config:
> cache_mem 100 MB
> maximum_object_size 250 MB
> cache_dir diskd /var/spool/squid-standard 28000 16 256
>
>
> At first, I tried to limit memory pooling:
>
> memory_pools_limit 64 MB
>
> -> no difference
>
>
> The I tried to switch off pooling:
>
> memory_pools off
>
> -> no difference
>
>
> I've seen segmentation violations in cache.log:
>
>
> FATAL: Received Segment Violation...dying.
> 2004/07/07 10:15:14| storeDirWriteCleanLogs: Starting...
> 2004/07/07 10:15:31| Starting Squid Cache version 2.5.STABLE5 for
> i686-pc-linux-gnu...
> 2004/07/07 10:15:31| Process ID 17870
> 2004/07/07 10:15:31| With 8192 file descriptors available
>
>
> FATAL: Received Segment Violation...dying.
> 2004/07/07 10:54:46| storeDirWriteCleanLogs: Starting...
> 2004/07/07 10:54:46| WARNING: Closing open FD 30
> 2004/07/07 10:54:46| 65536 entries written so far.
> 2004/07/07 10:54:46| 131072 entries written so far.
> 2004/07/07 10:54:46| 196608 entries written so far.
> 2004/07/07 10:54:46| 262144 entries written so far.
> 2004/07/07 10:54:47| 327680 entries written so far.
> 2004/07/07 10:54:47| 393216 entries written so far.
> 2004/07/07 10:54:48| 458752 entries written so far.
> 2004/07/07 10:54:48| 524288 entries written so far.
> 2004/07/07 10:54:48| 589824 entries written so far.
> 2004/07/07 10:54:48| 655360 entries written so far.
> 2004/07/07 10:54:48| 720896 entries written so far.
> 2004/07/07 10:54:49| 786432 entries written so far.
> 2004/07/07 10:54:49| 851968 entries written so far.
> 2004/07/07 10:54:49| 917504 entries written so far.
> 2004/07/07 10:54:49| 983040 entries written so far.
> 2004/07/07 10:54:49| 1048576 entries written so far.
> 2004/07/07 10:54:53| Starting Squid Cache version 2.5.STABLE5 for
> i686-pc-linux-gnu...
>
> FATAL: Received Segment Violation...dying.
> 2004/07/07 12:37:52| storeDirWriteCleanLogs: Starting...
> 2004/07/07 12:37:52| WARNING: Closing open FD 30
> 2004/07/07 12:37:52| 65536 entries written so far.
>

   - File a bug report according to :

         http://www.squid-cache.org/Doc/FAQ/FAQ-11.html#ss11.19

    
   - You may want to test whether the latest tarball solves this and or
your memory issue.

   M.
Received on Wed Jul 07 2004 - 06:24:16 MDT