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
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
