Re: [Samba] Samba, and NFS. lag?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 That hasnt helped either. Same lag on file modification. Thanks. On 01/16/2010 05:46 AM, Volker Lendecke wrote: On Fri, Jan 15, 2010 at 03:20:36PM -0500, Nathan Lager wrote: Any suggestions? Anything i can check? Am i perhaps looking an an NFS performance issue? I'm able to modify files over the nfs mount from the smb server without an issue. No, this is probably not a NFS performance thing, NFS is not *that* slow. Next try after kernel oplocks = no would be posix locking = no. Volker - -- - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Nathan Lager System Administrator 11 Pardee Hall Lafayette College, Easton, PA 18042 610-330-5907 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktXPUkACgkQsZqG4IN3sulhJwCgqciUoWOtxcpRbMORwpWrSXMk MIgAnRRMhaEWU7mynN7B6N8UVOCqJsPk =aypr -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
On Wed, Jan 20, 2010 at 12:28:41PM -0500, Nathan Lager wrote: That hasnt helped either. Same lag on file modification. Thanks. Please connect, look in smbstatus which process is responsible for your client and strace it. strace -ttT -o /tmp/smbd.strace -p smbd-pid Upload /tmp/smbd.strace somewhere please. Volker pgpZSCKMDlyzR.pgp Description: PGP signature -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Thank's, i'll get on that. in the meantime. I've run wireshark during the write process. Here's what i've come up with. When i initiate the write (file-save), i see, from my workstation, to the smb server and NT Create Andx request path: \test\testfile.txt Immediately after that, i get a response from the smb server, to my workstation: microsoft-ds cognex-insight [ACK] seq=1 Ack=127 Win=36448 Len:0 28 seconds later, i get, from my workstation, to the server: Echo Request Immdiately after that, i get another microsoft-ds cognex-insight [ACK] Then the whole thing seems to start over again, except this time, no 28 second pause, and the write completes. On 01/20/2010 12:56 PM, Volker Lendecke wrote: On Wed, Jan 20, 2010 at 12:28:41PM -0500, Nathan Lager wrote: That hasnt helped either. Same lag on file modification. Thanks. Please connect, look in smbstatus which process is responsible for your client and strace it. strace -ttT -o /tmp/smbd.strace -p smbd-pid Upload /tmp/smbd.strace somewhere please. Volker - -- - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Nathan Lager System Administrator 11 Pardee Hall Lafayette College, Easton, PA 18042 610-330-5907 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktXRxEACgkQsZqG4IN3suknRQCfUFc86qkDPr1twg4zE2+qA1Tr sxEAn0TsA1sVV1m56QOCbsr+hXec/ywT =hqfY -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 OK, Here we go. http://www.undrground.org/smb/smbd.strace On 01/20/2010 12:56 PM, Volker Lendecke wrote: On Wed, Jan 20, 2010 at 12:28:41PM -0500, Nathan Lager wrote: That hasnt helped either. Same lag on file modification. Thanks. Please connect, look in smbstatus which process is responsible for your client and strace it. strace -ttT -o /tmp/smbd.strace -p smbd-pid Upload /tmp/smbd.strace somewhere please. Volker -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktXTSIACgkQsZqG4IN3sunZqACffagPWZAH3BKFTfe2NSytiOWx zfAAoJgks2s5Dt1Pg0vh+49o9FMIcRWj =uCY5 -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
On Wed, 20 Jan 2010 13:36:18 -0500 Nathan Lager lag...@lafayette.edu wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 OK, Here we go. http://www.undrground.org/smb/smbd.strace On 01/20/2010 12:56 PM, Volker Lendecke wrote: On Wed, Jan 20, 2010 at 12:28:41PM -0500, Nathan Lager wrote: That hasnt helped either. Same lag on file modification. Thanks. Please connect, look in smbstatus which process is responsible for your client and strace it. strace -ttT -o /tmp/smbd.strace -p smbd-pid Upload /tmp/smbd.strace somewhere please. Volker -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktXTSIACgkQsZqG4IN3sunZqACffagPWZAH3BKFTfe2NSytiOWx zfAAoJgks2s5Dt1Pg0vh+49o9FMIcRWj =uCY5 -END PGP SIGNATURE- Looks like it's taking forever for flock() calls to time out, and then it finally fails with -ENOLCK: 13:24:00.268018 flock(28, 0x60 /* LOCK_??? */) = -1 ENOLCK (No locks available) 30.000971 ...often that means that you don't have rpc.statd running on the client. -- Jeff Layton jlay...@samba.org -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 01/20/2010 03:00 PM, Jeff Layton wrote: ...often that means that you don't have rpc.statd running on the client. I officially feel like a dolt now. Thank you for pointing out what should have been painfully obvious. I started up the nfslock service on my samba server, and the issue is gone. Thanks! Here's to public humiliation. :P -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktXaRUACgkQsZqG4IN3sumEiwCgjsu7CywPEauep8TZAufwL2fH RzgAnjgDPui2dwBd75efZ7UPahhtYgko =VNjc -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
On Fri, Jan 15, 2010 at 03:20:36PM -0500, Nathan Lager wrote: Any suggestions? Anything i can check? Am i perhaps looking an an NFS performance issue? I'm able to modify files over the nfs mount from the smb server without an issue. No, this is probably not a NFS performance thing, NFS is not *that* slow. Next try after kernel oplocks = no would be posix locking = no. Volker signature.asc Description: Digital signature -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] Samba, and NFS. lag?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Afternoon! I have a samba server, which shares out an NFS mounted share. It seems that everything works rather well, except that i get some lag when modifying a file. If i share a directory which is local to the samba server, no lag, everything works perfectly. However, when i share an NFS mounted volume, i get about 30 seconds of lag while writing a file after it's been modified. In my test, i did the following: - From Windows xp, browse to \\smbserver\share\ browse to a directory which you have permission to write to. open an existing file (in my case, a text file, using Notepad). Add a line to the file. save the file. Notepad hangs for about 30 seconds, and then successfully completes its write. The only thin special about this windows XP client is that it has the Novell mobile client installed. I ran into an issue where windows was first trying to access my smb server using novell's ncp, but this was corrected by moving around the provider order in Windows networking. Any suggestions? Anything i can check? Am i perhaps looking an an NFS performance issue? I'm able to modify files over the nfs mount from the smb server without an issue. Thanks! - -- - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Nathan Lager System Administrator 11 Pardee Hall Lafayette College, Easton, PA 18042 610-330-5907 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktQzhQACgkQsZqG4IN3sumiIACgq9ms6T+hVVBVgdCyPztB6SMV bhYAnRM+bEJ3Mz5Gu96/iVqVYS4Hz/cH =v0Q/ -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
Nathan Lager wrote: Afternoon! I have a samba server, which shares out an NFS mounted share. It seems that everything works rather well, except that i get some lag when modifying a file. If i share a directory which is local to the samba server, no lag, everything works perfectly. However, when i share an NFS mounted volume, i get about 30 seconds of lag while writing a file after it's been modified. Hey Nathan, A 30 second lag is normally an indication of an oplock break timeout. Just an fyi...If you are re-exporting an nfs mounted volume on linux, try setting kernel oplocks = no since I don't bnelieve the kernel file lease mechanism is availble on an NFS mount but I could be wrong on that one. Just a suggestion. cheers, jerry signature.asc Description: OpenPGP digital signature -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba, and NFS. lag?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 This didnt seem to help. As a side, note, i've also tried it without the Novell client. This didnt help either. Thanks just the same for the response. On 01/15/2010 03:48 PM, Gerald Carter wrote: Nathan Lager wrote: Afternoon! I have a samba server, which shares out an NFS mounted share. It seems that everything works rather well, except that i get some lag when modifying a file. If i share a directory which is local to the samba server, no lag, everything works perfectly. However, when i share an NFS mounted volume, i get about 30 seconds of lag while writing a file after it's been modified. Hey Nathan, A 30 second lag is normally an indication of an oplock break timeout. Just an fyi...If you are re-exporting an nfs mounted volume on linux, try setting kernel oplocks = no since I don't bnelieve the kernel file lease mechanism is availble on an NFS mount but I could be wrong on that one. Just a suggestion. cheers, jerry - -- - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Nathan Lager System Administrator 11 Pardee Hall Lafayette College, Easton, PA 18042 610-330-5907 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAktQ3OMACgkQsZqG4IN3sun27wCeL3TzsFao7x12Dgh+F/OABf2X CTAAmQE54iRoF7WuKtfJVT3IdbBNoGXw =EKvT -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
