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Re: running out of filedescriptors

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--- On Tue, 1/26/10, Mike Rambo <mrambo@xxxxxxxxxxxxx> wrote:

> From: Mike Rambo <mrambo@xxxxxxxxxxxxx>
> Subject: Re:  running out of filedescriptors
> To: "Landy Landy" <landysaccount@xxxxxxxxx>
> Cc: "Squid-Users" <squid-users@xxxxxxxxxxxxxxx>
> Date: Tuesday, January 26, 2010, 11:48 AM
> Landy Landy wrote:
> > I restarted squid and it comes up ok. But I still
> get:
> > 
> > With 1024 file descriptors available
> > 
> > 2010/01/26 10:27:43| Starting Squid Cache version
> 3.0.STABLE20 for i686-pc-linux-gnu...
> > 2010/01/26 10:27:43| Process ID 2768
> > 2010/01/26 10:27:43| With 1024 file descriptors
> available
> > 2010/01/26 10:27:43| DNS Socket created at 0.0.0.0,
> port 32808, FD 7
> > 2010/01/26 10:27:43| Adding nameserver 196.3.81.5 from
> squid.conf
> > 2010/01/26 10:27:43| Adding nameserver 200.88.127.22
> from squid.conf
> > 2010/01/26 10:27:43| Adding nameserver 196.3.81.132
> from squid.conf
> > 2010/01/26 10:27:43| helperOpenServers: Starting 10/10
> 'python' processes
> > 2010/01/26 10:27:44| Unlinkd pipe opened on FD 22
> > 2010/01/26 10:27:44| Swap maxSize 40960000 + 524288
> KB, estimated 864256 objects
> > 2010/01/26 10:27:44| Target number of buckets: 43212
> > 2010/01/26 10:27:44| Using 65536 Store buckets
> > 2010/01/26 10:27:44| Max Mem  size: 524288 KB
> > 2010/01/26 10:27:44| Max Swap size: 40960000 KB
> > 2010/01/26 10:27:45| Version 1 of swap file with LFS
> support detected...
> > 2010/01/26 10:27:45| Rebuilding storage in
> /var/log/squid3.1/cache (DIRTY)
> > 2010/01/26 10:27:45| Using Round Robin store dir
> selection
> > 2010/01/26 10:27:45| Current Directory is /
> > 2010/01/26 10:27:45| Loaded Icons.
> > 2010/01/26 10:27:45| Accepting transparently proxied
> HTTP connections at 172.16.0.1, port 3128, FD 24.
> > 2010/01/26 10:27:45| HTCP Disabled.
> > 2010/01/26 10:27:45| Ready to serve requests.
> > 2010/01/26 10:27:45| Store rebuilding is 0.35%
> complete
> > 2010/01/26 10:28:00| Store rebuilding is 85.83%
> complete
> > 2010/01/26 10:28:04| Done reading
> /var/log/squid3.1/cache swaplog (1173452 entries)
> > 2010/01/26 10:28:04| Finished rebuilding storage from
> disk.
> > 2010/01/26 10:28:04|    969488 Entries
> scanned
> > 2010/01/26 10:28:04|     
>    0 Invalid entries.
> > 2010/01/26 10:28:04|     
>    0 With invalid flags.
> > 2010/01/26 10:28:04|    766226 Objects
> loaded.
> > 2010/01/26 10:28:04|     
>    0 Objects expired.
> > 2010/01/26 10:28:04|    203262 Objects
> cancelled.
> > 2010/01/26 10:28:04|     
>    0 Duplicate URLs purged.
> > 2010/01/26 10:28:04|     
>    0 Swapfile clashes avoided.
> > 2010/01/26 10:28:04|   Took 19.63
> seconds (39024.87 objects/sec).
> > 2010/01/26 10:28:04| Beginning Validation Procedure
> > 2010/01/26 10:28:05|   524288 Entries
> Validated so far.
> > 2010/01/26 10:28:06|   1048576 Entries
> Validated so far.
> > 2010/01/26 10:28:06|   1310720 Entries
> Validated so far.
> > 2010/01/26 10:28:06|   Completed
> Validation Procedure
> > 2010/01/26 10:28:06|   Validated
> 1532463 Entries
> > 2010/01/26 10:28:06|   store_swap_size
> = 32693644
> > 2010/01/26 10:28:06| storeLateRelease: released 0
> objects
> > 2010/01/26 10:28:59| Killing RunCache, pid 2766
> > 2010/01/26 10:28:59| Preparing for shutdown after 0
> requests
> > 2010/01/26 10:28:59| Waiting 30 seconds for active
> connections to finish
> > 2010/01/26 10:28:59| FD 24 Closing HTTP connection
> > 2010/01/26 10:40:59| Starting Squid Cache version
> 3.0.STABLE20 for i686-pc-linux-gnu...
> > 2010/01/26 10:40:59| Process ID 3549
> > 2010/01/26 10:40:59| With 1024 file descriptors
> available
> > 2010/01/26 10:40:59| Performing DNS Tests...
> > 2010/01/26 10:40:59| Successful DNS name lookup
> tests...
> > 2010/01/26 10:40:59| DNS Socket created at 0.0.0.0,
> port 32822, FD 7
> > 2010/01/26 10:40:59| Adding nameserver 196.3.81.5 from
> squid.conf
> > 2010/01/26 10:40:59| Adding nameserver 200.88.127.22
> from squid.conf
> > 2010/01/26 10:40:59| Adding nameserver 196.3.81.132
> from squid.conf
> > 2010/01/26 10:40:59| helperOpenServers: Starting 10/10
> 'python' processes
> > 2010/01/26 10:41:00| Unlinkd pipe opened on FD 22
> > 2010/01/26 10:41:00| Swap maxSize 40960000 + 786432
> KB, estimated 869717 objects
> > 2010/01/26 10:41:00| Target number of buckets: 43485
> > 2010/01/26 10:41:00| Using 65536 Store buckets
> > 2010/01/26 10:41:00| Max Mem  size: 786432 KB
> > 2010/01/26 10:41:00| Max Swap size: 40960000 KB
> > 2010/01/26 10:41:00| Version 1 of swap file with LFS
> support detected...
> > 2010/01/26 10:41:00| Rebuilding storage in
> /var/log/squid3.1/cache (DIRTY)
> > 2010/01/26 10:41:00| Using Round Robin store dir
> selection
> > 2010/01/26 10:41:00| Current Directory is /root
> > 2010/01/26 10:41:00| Loaded Icons.
> > 2010/01/26 10:41:00| Accepting transparently proxied
> HTTP connections at 172.16.0.1, port 3128, FD 24.
> > 2010/01/26 10:41:00| HTCP Disabled.
> > 2010/01/26 10:41:00| Ready to serve requests.
> > 2010/01/26 10:41:01| WARNING: redirector #1 (FD 8)
> exited
> > 2010/01/26 10:41:01| Store rebuilding is 0.35%
> complete
> > 2010/01/26 10:41:14| Done reading
> /var/log/squid3.1/cache swaplog (1172750 entries)
> > 2010/01/26 10:41:14| Finished rebuilding storage from
> disk.
> > 2010/01/26 10:41:14|    969488 Entries
> scanned
> > 2010/01/26 10:41:14|     
>    0 Invalid entries.
> > 2010/01/26 10:41:14|     
>    0 With invalid flags.
> > 2010/01/26 10:41:14|    766226 Objects
> loaded.
> > 2010/01/26 10:41:14|     
>    0 Objects expired.
> > 2010/01/26 10:41:14|    203262 Objects
> cancelled.
> > 2010/01/26 10:41:14|     
>    0 Duplicate URLs purged.
> > 2010/01/26 10:41:14|     
>    0 Swapfile clashes avoided.
> > 2010/01/26 10:41:14|   Took 13.59
> seconds (56399.78 objects/sec).
> > 2010/01/26 10:41:14| Beginning Validation Procedure
> > 2010/01/26 10:41:14|   524288 Entries
> Validated so far.
> > 2010/01/26 10:41:14|   1048576 Entries
> Validated so far.
> > 2010/01/26 10:41:14|   1310720 Entries
> Validated so far.
> > 2010/01/26 10:41:14|   Completed
> Validation Procedure
> > 2010/01/26 10:41:14|   Validated
> 1532463 Entries
> > 2010/01/26 10:41:14|   store_swap_size
> = 32693644
> > 2010/01/26 10:41:14| storeLateRelease: released 0
> objects
> > 2010/01/26 10:41:54| Squid is already running! 
> Process ID 3549
> > 2010/01/26 10:59:47| Squid is already running! 
> Process ID 3549
> > 2010/01/26 11:00:06| Squid is already running! 
> Process ID 3549
> > 2010/01/26 11:37:07| Killing RunCache, pid 3547
> > 2010/01/26 11:37:07| Preparing for shutdown after 0
> requests
> > 2010/01/26 11:37:07| Waiting 30 seconds for active
> connections to finish
> > 2010/01/26 11:37:07| FD 24 Closing HTTP connection
> > 2010/01/26 11:37:07| WARNING: redirector #2 (FD 9)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #4 (FD 11)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #5 (FD 12)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #6 (FD 13)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #7 (FD 14)
> exited
> > 2010/01/26 11:37:07| Too few redirector processes are
> running
> > 2010/01/26 11:37:07| Starting new helpers
> > 2010/01/26 11:37:07| helperOpenServers: Starting 6/10
> 'python' processes
> > 2010/01/26 11:37:07| WARNING: redirector #3 (FD 10)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #10 (FD 17)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #9 (FD 16)
> exited
> > 2010/01/26 11:37:07| WARNING: redirector #8 (FD 15)
> exited
> > 2010/01/26 11:40:41| Starting Squid Cache version
> 3.0.STABLE20 for i686-pc-linux-gnu...
> > 2010/01/26 11:40:41| Process ID 2842
> > 2010/01/26 11:40:41| With 1024 file descriptors
> available
> > 2010/01/26 11:40:41| Performing DNS Tests...
> > 2010/01/26 11:40:42| Successful DNS name lookup
> tests...
> > 2010/01/26 11:40:42| DNS Socket created at 0.0.0.0,
> port 32779, FD 7
> > 2010/01/26 11:40:42| Adding nameserver 196.3.81.5 from
> squid.conf
> > 2010/01/26 11:40:42| Adding nameserver 200.88.127.22
> from squid.conf
> > 2010/01/26 11:40:42| Adding nameserver 196.3.81.132
> from squid.conf
> > 2010/01/26 11:40:42| helperOpenServers: Starting 10/10
> 'python' processes
> > 2010/01/26 11:40:42| Unlinkd pipe opened on FD 22
> > 2010/01/26 11:40:42| Swap maxSize 40960000 + 786432
> KB, estimated 869717 objects
> > 2010/01/26 11:40:42| Target number of buckets: 43485
> > 2010/01/26 11:40:42| Using 65536 Store buckets
> > 2010/01/26 11:40:42| Max Mem  size: 786432 KB
> > 2010/01/26 11:40:42| Max Swap size: 40960000 KB
> > 2010/01/26 11:40:43| Version 1 of swap file with LFS
> support detected...
> > 2010/01/26 11:40:43| Rebuilding storage in
> /var/log/squid3.1/cache (DIRTY)
> > 2010/01/26 11:40:43| Using Round Robin store dir
> selection
> > 2010/01/26 11:40:43| Current Directory is /
> > 2010/01/26 11:40:43| Loaded Icons.
> > 2010/01/26 11:40:43| Accepting transparently proxied
> HTTP connections at 172.16.0.1, port 3128, FD 24.
> > 2010/01/26 11:40:43| HTCP Disabled.
> > 2010/01/26 11:40:43| Ready to serve requests.
> > 2010/01/26 11:40:44| Store rebuilding is 0.35%
> complete
> > 2010/01/26 11:40:59| Store rebuilding is 88.37%
> complete
> > 2010/01/26 11:41:02| Done reading
> /var/log/squid3.1/cache swaplog (1172750 entries)
> > 2010/01/26 11:41:02| Finished rebuilding storage from
> disk.
> > 2010/01/26 11:41:02|    969488 Entries
> scanned
> > 2010/01/26 11:41:02|     
>    0 Invalid entries.
> > 2010/01/26 11:41:02|     
>    0 With invalid flags.
> > 2010/01/26 11:41:02|    766226 Objects
> loaded.
> > 2010/01/26 11:41:02|     
>    0 Objects expired.
> > 2010/01/26 11:41:02|    203262 Objects
> cancelled.
> > 2010/01/26 11:41:02|     
>    0 Duplicate URLs purged.
> > 2010/01/26 11:41:02|     
>    0 Swapfile clashes avoided.
> > 2010/01/26 11:41:02|   Took 18.63
> seconds (41137.06 objects/sec).
> > 2010/01/26 11:41:02| Beginning Validation Procedure
> > 2010/01/26 11:41:02|   524288 Entries
> Validated so far.
> > 2010/01/26 11:41:03|   1048576 Entries
> Validated so far.
> > 2010/01/26 11:41:03|   1310720 Entries
> Validated so far.
> > 2010/01/26 11:41:03|   Completed
> Validation Procedure
> > 2010/01/26 11:41:03|   Validated
> 1532463 Entries
> > 2010/01/26 11:41:03|   store_swap_size
> = 32693644
> > 2010/01/26 11:41:03| storeLateRelease: released 0
> objects
> > 
> > 
> > 
> >       
> 
> Unless I'm totally missing it there isn't anything in this
> particular log that indicates a shortage of file
> descriptors. I do notice your redirectors are exiting
> though. I'd suggest running squid without the redirector
> just to see if the cache itself will stay up and process
> traffic that way. If it does it implies the problem is with
> the redirector.
> 
> If you actually *are* running out of file descriptors and
> it just isn't identified in this particular log, and if you
> can't do anything with ulimit and recompiling squid to use
> more FD's as others have suggested, you can try setting
> persistent connections to off as that will reduce the FD
> pressure on squid.
> 
> server_persistent_connections off
> client_persistent_connections off
> 

This actual log doesnt show any error since is a new reboot and squid doesn't have any problems after a reload. The actual error is on a previous post.

Now, which are the pros and cons of enabling  

server_persistent_connections on
client_persistent_connections on




      


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