Re: [Samba] Tracking down a Samba problem under load
tir, 21.06.2005 kl. 21.12 skrev [EMAIL PROTECTED]: We use Samba as an interop file sharing solution for the ClearCase version control system. Unfortunately we have run into a problem after a recent upgrade to RedHat Enterprise 3. This problem occurs both with the RedHat included 3.0.9-1.3E.3, and a custom compile of the latest 3.0.14a direct from Samba. The symptoms are: under high load, such as during a build, new samba processes will spawn, but not respond. A ps list shows many smbd processes active, but no new connections can be established. Older connections seem to still function ok. Shutting down samba via the standard RedHat method service smb stop only kills the older processes, and the new non-responding ones must be kill -9'd to get them to terminate. Base level logging tells me nothing, and turning up the debug level just gets more of the same, but I'm not extremely well versed in what I'd be looking for to isolate the problem. I have seen a few panic's in the log, usually one or two per day, but the not responding problem doesn't seem to coincide with any of those. My basic problem is, I don't have any way of figuring out where the problem lies, and what to submit as a bug. Any pointers in that direction would be very helpful. Did you install binary rpms? If so, try to build and install the 3.0.14a srpm (source code in the BUILD directory should be patched with the 3.0.14a anti-spin patch). The reason I write this is, that we have no problems with the srpm on a moderately loaded (30-40 w2k workstations) RHAS3 server. --Tonni -- mail: [EMAIL PROTECTED] http://www.billy.demon.nl -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
Re: [Samba] Tracking down a Samba problem under load
No, I built from the source package with the RedHat patches merged in. I'm pretty sure the problem has something to do with the pattern and special loading that ClearCase puts on Samba(lots of locks per client, locks held for a long time), since none of the other Samba servers we have with similar client load have this problem. Brian Pickering - [EMAIL PROTECTED] System Administrator - Information Services Schweitzer Engineering Laboratories, Inc. Tony Earnshaw [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 06/21/2005 11:30 PM To samba@lists.samba.org cc Subject Re: [Samba] Tracking down a Samba problem under load tir, 21.06.2005 kl. 21.12 skrev [EMAIL PROTECTED]: We use Samba as an interop file sharing solution for the ClearCase version control system. Unfortunately we have run into a problem after a recent upgrade to RedHat Enterprise 3. This problem occurs both with the RedHat included 3.0.9-1.3E.3, and a custom compile of the latest 3.0.14a direct from Samba. The symptoms are: under high load, such as during a build, new samba processes will spawn, but not respond. A ps list shows many smbd processes active, but no new connections can be established. Older connections seem to still function ok. Shutting down samba via the standard RedHat method service smb stop only kills the older processes, and the new non-responding ones must be kill -9'd to get them to terminate. Base level logging tells me nothing, and turning up the debug level just gets more of the same, but I'm not extremely well versed in what I'd be looking for to isolate the problem. I have seen a few panic's in the log, usually one or two per day, but the not responding problem doesn't seem to coincide with any of those. My basic problem is, I don't have any way of figuring out where the problem lies, and what to submit as a bug. Any pointers in that direction would be very helpful. Did you install binary rpms? If so, try to build and install the 3.0.14a srpm (source code in the BUILD directory should be patched with the 3.0.14a anti-spin patch). The reason I write this is, that we have no problems with the srpm on a moderately loaded (30-40 w2k workstations) RHAS3 server. --Tonni -- mail: [EMAIL PROTECTED] http://www.billy.demon.nl -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
[Samba] Tracking down a Samba problem under load
We use Samba as an interop file sharing solution for the ClearCase version control system. Unfortunately we have run into a problem after a recent upgrade to RedHat Enterprise 3. This problem occurs both with the RedHat included 3.0.9-1.3E.3, and a custom compile of the latest 3.0.14a direct from Samba. The symptoms are: under high load, such as during a build, new samba processes will spawn, but not respond. A ps list shows many smbd processes active, but no new connections can be established. Older connections seem to still function ok. Shutting down samba via the standard RedHat method service smb stop only kills the older processes, and the new non-responding ones must be kill -9'd to get them to terminate. Base level logging tells me nothing, and turning up the debug level just gets more of the same, but I'm not extremely well versed in what I'd be looking for to isolate the problem. I have seen a few panic's in the log, usually one or two per day, but the not responding problem doesn't seem to coincide with any of those. My basic problem is, I don't have any way of figuring out where the problem lies, and what to submit as a bug. Any pointers in that direction would be very helpful. Just for reference, here is the smb.conf, basically our only change from default is to turn off oplocks, as instructed by the ClearCase documentation: [global] log level = 1 log file = /var/log/samba/smbd.log max log size = 0 password server = * server string = ClearCase VOB Server workgroup = SEL username map = /etc/samba/smbusers socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 load printers = No wins server = x.x.x.x security = DOMAIN kernel oplocks = No create mask = 0775 directory mask = 0775 [array] comment = VOB Storage path = /array read only = No oplocks = No level2 oplocks = No Brian Pickering - [EMAIL PROTECTED] System Administrator - Information Services Schweitzer Engineering Laboratories, Inc. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
