Search Postgresql Archives

Re: SIGSEGV happens over once a day

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Richard Yen wrote:
Hi all,

I'm experiencing signal 11 (segmentation fault) failures on the master node of a 3-node Slony-I cluster. In the past week, we've averaged a little more than one segfault per day (11 times in the past 10, including today). Any ideas what's going on?

Would anyone know how to track this issue?

Don't know if attaching log output might help, but it's very similar to the following (the responses to those threads didn't help us, though):
http://archives.postgresql.org/pgsql-general/2004-06/msg01204.php
http://www.thescripts.com/forum/thread422225.html

Here's the machine where postgres is faulting:
db1 (Dell 6650):
master Slony-I node
postgreSQL version: 7.4.6
OS: Debian Linux 3.1
CPU: Xeon 4 X 2.5GHz
RAM: 8 GB
DISK:
     / 4 x 18 GB drive: raid 10
     /db/data/base 12 x 36 GB: raid 10
     /db/data/pg_xlog 2 x 73 GB: raid 1

The other two machines don't die, but they're set up pretty much the same way. The only difference is that db2 is running 8.1.3.

So what seems odd to me is that db1 and db3 are pretty much identical (db3 has a 1.40GHz Xeon instead of a 2.5GHz, and some RAM differences), yet postgres dies all the time on db1, but has yet to die on db2 or db3, so I'm guessing maybe it's an UPDATE/INSERT/etc.?

Everything was running fine until last Tuesday, when this happened. We've created no new stored procedures, made no changes, or anything of the sort.

We've rebooted the db1 machine, but to no avail.  Any other suggestions?

Let me know if you need other info...

Any help would be greatly appreciated!

It sounds like a hardware problem. You could run GDB against a core dump and see what it produces.

Sincerely,

Joshua D. Drake


--Richard


---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
      subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your
      message can get through to the mailing list cleanly



--

           === The PostgreSQL Company: Command Prompt, Inc. ===
     Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240
     Providing the most comprehensive  PostgreSQL solutions since 1997
                    http://www.commandprompt.com/




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux