RE: [squid-users] dead squid, Still looking,

Didn't have time to try -C parameter, But the strace did work, What it showed
was, that the main process started the child process that squid couldn't find
in the squid.pid, shutting down the process. I could not trace this process
because it was just created milli seconds before squid died. Go figure.

So why does squid consider the cache to be dirty?

> I'd be interested in seeing your squid.conf file.
> I too, expect your cache is dirty. Again, attaching an strace session to
> squid might illustrate exactly why it's dying.
> Also, how does the "-C" parameter affect squid?

> Tim Rainier
> Information Services, Kalsec, INC
> trainier@kalsec.com

> "John R. Van Lanen, Network Operations - TCCSA" <VANLANEN@tccsa.net>
> 08/29/2005 04:18 PM

> To
> lokesh.khanna@accelonafrica.com
> cc
> VANLANEN@tccsa.net, trainier@kalsec.com, squid-users@squid-cache.org
> Subject
> RE: [squid-users] dead squid, Still looking,

> Done that too. Allowed squid -z to rebuild and it will still die with in
> hours.

> Removed deleted all cache files and directories.

> I'll do that too and see what happens.

> > Why it dies while rebuilding storage.
> > Your cache is also looking dirty.
> > Can you delete all file and start caching again?

> > -----Original Message-----
> > From: John R. Van Lanen, Network Operations - TCCSA
> > [mailto:VANLANEN@tccsa.net]
> > Sent: Monday, August 29, 2005 8:29 PM
> > To: trainier@kalsec.com
> > Cc: squid-users@squid-cache.org; VANLANEN@tccsa.net
> > Subject: Re: [squid-users] dead squid, Still looking,

> > If I do this, its a matter of hours and the same occurs again. What
> > triggers
> > the process that squid feels it needs to start again and add a new
> > process, why
> > did the old process die to begin with? In other words, what triggers
> > the need
> > to do this over and over again. When doing a squid status I only ever
> > see 2
> > processes.

> > Here is the last 1/8 of the File,

> > > > 2005/08/19 17:28:21| Starting Squid Cache version 2.5.STABLE3 for
> > > > i386-redhat-linux-gnu...
> > > > 2005/08/19 17:28:21| Process ID 5486
> > > > 2005/08/19 17:28:21| With 1024 file descriptors available
> > > > 2005/08/19 17:28:21| DNS Socket created at 0.0.0.0, port 32785, FD 4
> > > > 2005/08/19 17:28:21| Adding nameserver 10.1.1.101 from
> > /etc/resolv.conf
> > > > 2005/08/19 17:28:21| helperOpenServers: Starting 10 'ifp_redirector'
> > > > processes
> > > > 2005/08/19 17:28:21| User-Agent logging is disabled.
> > > > 2005/08/19 17:28:21| Referer logging is disabled.
> > > > 2005/08/19 17:28:21| Unlinkd pipe opened on FD 19
> > > > 2005/08/19 17:28:21| Swap maxSize 2048000 KB, estimated 157538
> > objects
> > > > 2005/08/19 17:28:21| Target number of buckets: 7876
> > > > 2005/08/19 17:28:21| Using 8192 Store buckets
> > > > 2005/08/19 17:28:21| Max Mem size: 8192 KB
> > > > 2005/08/19 17:28:21| Max Swap size: 2048000 KB
> > > > 2005/08/19 17:28:21| Rebuilding storage in /usr/squid (DIRTY)
> > > > 2005/08/19 17:28:21| Using Least Load store dir selection
> > > > 2005/08/19 17:28:21| chdir: /var/spool/squid: (2) No such file or
> > > > directory
> > > > 2005/08/19 17:28:21| Current Directory is /root
> > > > 2005/08/19 17:28:21| Loaded Icons.
> > > > 2005/08/19 17:28:22| Accepting HTTP connections at 0.0.0.0, port
> > 7034,
> > > > FD 21.
> > > > 2005/08/19 17:28:22| Accepting ICP messages at 0.0.0.0, port 3130,
> > FD 22.
> > > > 2005/08/19 17:28:22| WCCP Disabled.
> > > > 2005/08/19 17:28:22| Ready to serve requests.
> > > > 2005/08/19 17:28:22| Store rebuilding is 3.5% complete
> > > > 2005/08/19 17:28:25| Starting Squid Cache version 2.5.STABLE3 for
> > > > i386-redhat-linux-gnu...
> > > > 2005/08/19 17:28:25| Process ID 5511
> > > > 2005/08/19 17:28:25| With 1024 file descriptors available
> > > > 2005/08/19 17:28:25| DNS Socket created at 0.0.0.0, port 32785, FD 4
> > > > 2005/08/19 17:28:25| Adding nameserver 10.1.1.101 from
> > /etc/resolv.conf
> > > > 2005/08/19 17:28:25| helperOpenServers: Starting 10 'ifp_redirector'
> > > > processes
> > > > 2005/08/19 17:28:25| User-Agent logging is disabled.
> > > > 2005/08/19 17:28:25| Referer logging is disabled.
> > > > 2005/08/19 17:28:25| Unlinkd pipe opened on FD 19
> > > > 2005/08/19 17:28:25| Swap maxSize 2048000 KB, estimated 157538
> > objects
> > > > 2005/08/19 17:28:25| Target number of buckets: 7876
> > > > 2005/08/19 17:28:25| Using 8192 Store buckets
> > > > 2005/08/19 17:28:25| Max Mem size: 8192 KB
> > > > 2005/08/19 17:28:25| Max Swap size: 2048000 KB
> > > > 2005/08/19 17:28:25| Rebuilding storage in /usr/squid (DIRTY)
> > > > 2005/08/19 17:28:25| Using Least Load store dir selection
> > > > 2005/08/19 17:28:25| chdir: /var/spool/squid: (2) No such file or
> > > > directory
> > > > 2005/08/19 17:28:25| Current Directory is /root
> > > > 2005/08/19 17:28:25| Loaded Icons.
> > > > 2005/08/19 17:28:25| Accepting HTTP connections at 0.0.0.0, port
> > 7034,
> > > > FD 21.
> > > > 2005/08/19 17:28:25| Accepting ICP messages at 0.0.0.0, port 3130,
> > FD 22.
> > > > 2005/08/19 17:28:25| WCCP Disabled.
> > > > 2005/08/19 17:28:25| Ready to serve requests.
> > > > 2005/08/19 17:28:26| Store rebuilding is 3.5% complete
> > > > 2005/08/19 17:28:29| Starting Squid Cache version 2.5.STABLE3 for
> > > > i386-redhat-linux-gnu...
> > > > 2005/08/19 17:28:29| Process ID 5530
> > > > 2005/08/19 17:28:29| With 1024 file descriptors available
> > > > 2005/08/19 17:28:29| DNS Socket created at 0.0.0.0, port 32785, FD 4
> > > > 2005/08/19 17:28:29| Adding nameserver 10.1.1.101 from
> > /etc/resolv.conf
> > > > 2005/08/19 17:28:29| helperOpenServers: Starting 10 'ifp_redirector'
> > > > processes
> > > > 2005/08/19 17:28:29| User-Agent logging is disabled.
> > > > 2005/08/19 17:28:29| Referer logging is disabled.
> > > > 2005/08/19 17:28:29| Unlinkd pipe opened on FD 19
> > > > 2005/08/19 17:28:29| Swap maxSize 2048000 KB, estimated 157538
> > objects
> > > > 2005/08/19 17:28:29| Target number of buckets: 7876
> > > > 2005/08/19 17:28:29| Using 8192 Store buckets
> > > > 2005/08/19 17:28:29| Max Mem size: 8192 KB
> > > > 2005/08/19 17:28:29| Max Swap size: 2048000 KB
> > > > 2005/08/19 17:28:29| Rebuilding storage in /usr/squid (DIRTY)
> > > > 2005/08/19 17:28:29| Using Least Load store dir selection
> > > > 2005/08/19 17:28:29| chdir: /var/spool/squid: (2) No such file or
> > > > directory
> > > > 2005/08/19 17:28:29| Current Directory is /root
> > > > 2005/08/19 17:28:29| Loaded Icons.
> > > > 2005/08/19 17:28:30| Accepting HTTP connections at 0.0.0.0, port
> > 7034,
> > > > FD 21.
> > > > 2005/08/19 17:28:30| Accepting ICP messages at 0.0.0.0, port 3130,
> > FD 22.
> > > > 2005/08/19 17:28:30| WCCP Disabled.
> > > > 2005/08/19 17:28:30| Ready to serve requests.
> > > > 2005/08/19 17:28:30| Store rebuilding is 3.5% complete

> > > Squid died sometime after this entry.

> > > System Reboot here. Squid active again.

> > > > 2005/08/22 09:11:23| Starting Squid Cache version 2.5.STABLE3 for
> > > > i386-redhat-linux-gnu...
> > > > 2005/08/22 09:11:23| Process ID 2742
> > > > 2005/08/22 09:11:23| With 1024 file descriptors available
> > > > 2005/08/22 09:11:23| DNS Socket created at 0.0.0.0, port 32770, FD 4
> > > > 2005/08/22 09:11:23| Adding nameserver 10.1.1.101 from
> > /etc/resolv.conf
> > > > 2005/08/22 09:11:23| helperOpenServers: Starting 10 'ifp_redirector'
> > > > processes
> > > > 2005/08/22 09:11:24| User-Agent logging is disabled.
> > > > 2005/08/22 09:11:24| Referer logging is disabled.
> > > > 2005/08/22 09:11:24| Unlinkd pipe opened on FD 19
> > > > 2005/08/22 09:11:24| Swap maxSize 2048000 KB, estimated 157538
> > objects
> > > > 2005/08/22 09:11:24| Target number of buckets: 7876
> > > > 2005/08/22 09:11:24| Using 8192 Store buckets
> > > > 2005/08/22 09:11:24| Max Mem size: 8192 KB
> > > > 2005/08/22 09:11:24| Max Swap size: 2048000 KB
> > > > 2005/08/22 09:11:24| Rebuilding storage in /usr/squid (DIRTY)
> > > > 2005/08/22 09:11:24| Using Least Load store dir selection
> > > > 2005/08/22 09:11:24| Set Current Directory to /usr/squid
> > > > 2005/08/22 09:11:24| Loaded Icons.
> > > > 2005/08/22 09:11:25| Accepting HTTP connections at 0.0.0.0, port
> > 7034,
> > > > FD 21.
> > > > 2005/08/22 09:11:25| Accepting ICP messages at 0.0.0.0, port 3130,
> > FD 22.
> > > > 2005/08/22 09:11:25| WCCP Disabled.
> > > > 2005/08/22 09:11:25| Ready to serve requests.
> > > > 2005/08/22 09:11:25| Store rebuilding is 3.5% complete
> > > > 2005/08/22 09:11:27| Done reading /usr/squid swaplog (116757
> > entries)
> > > > 2005/08/22 09:11:27| Finished rebuilding storage from disk.
> > > > 2005/08/22 09:11:27| 116108 Entries scanned
> > > > 2005/08/22 09:11:27| 0 Invalid entries.
> > > > 2005/08/22 09:11:27| 0 With invalid flags.
> > > > 2005/08/22 09:11:27| 116108 Objects loaded.
> > > > 2005/08/22 09:11:27| 0 Objects expired.
> > > > 2005/08/22 09:11:27| 0 Objects cancelled.
> > > > 2005/08/22 09:11:27| 649 Duplicate URLs purged.
> > > > 2005/08/22 09:11:27| 0 Swapfile clashes avoided.
> > > > 2005/08/22 09:11:27| Took 3.0 seconds (39024.9 objects/sec).
> > > > 2005/08/22 09:11:27| Beginning Validation Procedure
> > > > 2005/08/22 09:11:27| Completed Validation Procedure
> > > > 2005/08/22 09:11:27| Validated 115459 Entries
> > > > 2005/08/22 09:11:27| store_swap_size = 1548892k
> > > > 2005/08/22 09:11:27| storeLateRelease: released 0 objects
> > > > 2005/08/22 11:31:10| urlParse: Illegal character in hostname
> > > > 'c12_zimmerman'
> > > > 2005/08/22 11:35:00| urlParse: Illegal character in hostname
> > > > 'c12_zimmerman'

> > ________________________________________________________________________
> > ______

> > Press return for more...

> > EMAIL>

> > > Yes:
> > > -F Don't serve any requests until store is rebuilt.

> > > My guess is that squid is trying to rebuild the store, but is too busy
> > > servicing requests.
> > > If that doesn't work, you can manually clear the cache, the store file
> > and
> > > have squid rebuild the cache hierarchy (squid -z).

> > > Tim Rainier
> > > Information Services, Kalsec, INC

> > > "John R. Van Lanen, Network Operations - TCCSA" <VANLANEN@tccsa.net>
> > > 08/29/2005 12:12 PM

> > > To
> > > squid-users@squid-cache.org
> > > cc
> > > VANLANEN@tccsa.net
> > > Subject
> > > [squid-users] dead squid, Still looking,

> > > Me again, sorry,

> > > my squid dies, when it does the cache.log most always shows the same
> > last
> > > entry
> > > of

> > > Store rebuilding is 4.4% (or some other number) complete

> > > Then nothing, The Squid status shows

> > > squid dead but pid file exists,

> > > Does anyone know in ES 3 if there is a problem with processes just
> > > disappearing?

> > > I've Tryed increasing Cache_mem from 8 to 768
> > > disabled store.log
> > > Increase ifp_redirector processes from 10 to 30.

> > > Any other settings anyone could think of?

> > > Orginally posted;

> > > I'm running Redhat ES 3.0,

> > > Running Squid Stable 2.5 ver 3 that comes with the Redhat ES 3.0

> > > The issue I have is that squid will stop dead,

> > > Do a squid status and it shows

> > > squid dead but pid file exists
> > > squid: ERROR Could not send signal 0 to process 5530: (3) No such
> > process,

> > > Have seen this before, restart squid or rebooting solves the issue for
> > > awhile,
> > > the 5530 number changes.

> > > Cache.log shows nothing but normal stuff.

> > > Searching the net shows others with the same issues but can't find a
> > > solution.

> > > Let me know if you can help. Thanks.
Received on Tue Aug 30 2005 - 14:36:45 MDT