OK here is what I did: tcpdump -s0 -w /tmp/tcpdump.log host 192.168.8.16
strace -fttp 25445 2>&1|tee /tmp/strace.log those were started at the same time and were left for ~2 min (the imapd process was still in the loop). I straced the couriertcpd process which forks imapd processes so the log includes entries from other children as well, the pid for the actual imapd process is 26484. The tcpdump log includes only entries to that mailbox (I moved it on a separate IP so the log is more clear). I now see rename packats but they last for less than a second while the imapd process continues to loop for 2 minutes+. I`m still confused as the nfs calls are far less then what I see in the strace: tcpdump -r /tmp/tcpdump.log -vv -A -n | grep -i rename|wc -l 80 Anyway, here are the logs, I really hope there are of any use for debugging the problem: http://0101.netclime.net/strace.log.gz http://0101.netclime.net/tcpdump.log.gz On Tuesday 27 November 2007 08:41:01 Gordon Messmer wrote: > Pavel Georgiev wrote: > > I did tcpdump -vv -s0 -A host nfs 2>&1 |tee log > > > > Anyway, here is a new dump, hope it helps: > > http://0101.netclime.net/nfs.log (1MB) > > That log does not include any "rename" packets. How about we start > over. Get a new strace and tcpdump capture. Send me the command you're > using for tcpdump as well. > > This is much easier if you're using -w to write the packet capture to a > file, which it looks like you did with nfs.log. After you capture > traffic, you can read back the dump, print it to ascii, and look for > renames: > > tcpdump -r nfs.log -vv -A | grep -i rename > > You should see lines like this: > > 22:28:15.286008 IP (tos 0x0, ttl 64, id 61839, offset 0, flags [DF], > proto: TCP (6), length: 236) herald.private.dragonsdawn.net.1261880593 > > ascension.private.dragonsdawn.net.nfs: 184 rename fh > Unknown/010000010009000002000000014805002576E90F00000008746573742E747874 > "test.txt" -> fh > Unknown/010000010009000002000000014805002576E90F0000000974657374332E7478 > "test3.txt" > > 22:28:15.295011 IP (tos 0x0, ttl 64, id 21309, offset 0, flags [DF], > proto: TCP (6), length: 316) ascension.private.dragonsdawn.net.nfs > > herald.private.dragonsdawn.net.1261880593: reply ok 264 rename from: > PRE: sz 4096 mtime 1196144807.000000 ctime 1196144807.000000 POST: DIR > 40755 ids 507/507 sz 4096 nlink 75 rdev 0/0 fsid 900 fileid 54801 > a/m/ctime 1196144879.000000 1196144895.000000 1196144895.000000 to: PRE: > sz 4096 mtime 1196144807.000000 ctime 1196144807.000000 POST: DIR 40755 > ids 507/507 sz 4096 nlink 75 rdev 0/0 fsid 900 fileid 54801 a/m/ctime > 1196144879.000000 1196144895.000000 1196144895.000000 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
