[squid-users] Squid 3.1.8 restarting issue mem_hdr

Hi,

we have an instance of squid - running version 3.1.8 - that suddenly has
gone in FATAL error. The reason that I found in cache.log is this:

2013/05/13 15:42:46| mem_hdr::write: writeBuffer: [341,553)
2013/05/13 15:42:46| mem_hdr::debugDump: lowest offset: 0 highest offset +
1: 342.
2013/05/13 15:42:46| mem_hdr::debugDump: Current available data is: [0,342)
- .
2013/05/13 15:42:46| storeDirWriteCleanLogs: Starting...
2013/05/13 15:42:46| WARNING: Closing open FD 11
2013/05/13 15:42:46| Finished. Wrote 41977 entries.
2013/05/13 15:42:46| Took 0.04 seconds (1085490.42 entries/sec).
FATAL: Attempt to overwrite already in-memory data. Preceeding this there
should be a mem_hdr::write output that lists the attempted write, and the
currently present data. Please get a 'backtrace full' from this error -
using the generated core, and file a bug report with the squid developers
including the last 10 lines of cache.log and the backtrace.

Note: we have 6 instances of squid handling heavy load under a load
balancer. The strange thing is that ALL 6 istances in the same identical
moment presented this FATAL ERROR.

I've found in internet another person with the same error but I think he
didn't resolve the issue
(http://www.squid-cache.org/mail-archive/squid-users/201108/0024.html).

Somebody please can help me?

Thanks
Daniele Antolini

--
View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-3-1-8-restarting-issue-mem-hdr-tp4660083.html
Sent from the Squid - Users mailing list archive at Nabble.com.