[Ocfs2-users] Large Files Hang Server

[Keith W]

No change in behavior.
My mount options
/dev/sdj1   /u03    ocfs2   _netdev,noatime,data=writeback,nointr	0 0

+-------------------------------+
+	      Keith		+
+-------------------------------+

On Tue, 24 May 2011, Sunil Mushran wrote:

> Repeat the same test but with volumes mounted with data=writeback
> mount option.
> 
> mount -o data=writeback /dev/sdX /path
> 
> On 05/24/2011 07:11 AM, Keith W wrote:
> > Hello list.
> > Apologies in advance, this may be a bit long. Just trying to give
> > as much info as I can at the outset.
> >
> > I have a two node setup that share a 500Gig SAS drive via ocfs2.
> > When I move either large files 300Megs+ or a large number of smaller files
> > onto or off of the volume, my terminal session will hang and if I do a
> > directory listing in another terminal while doing a file transfer that
> > terminal will hang as well.
> >
> > The only thing I can see that is not "typical" is that I had to change
> > the port to 8888 due to another application running on 7777.
> >
> >
> > Here is my configuration:
> > ------------------------
> > Oracle Enterprise Linux 5.5 (Oracle Updated Kernel 2.6.18-194.0.0.0.3.el5)
> > OCFS2 Version 1.4.4
> > GigE Interconnect
> > SaS Connection to the drive.
> >
> >
> > cluster.conf:
> > -------------
> > cluster:
> >          node_count = 2
> >          name = HobCluster
> > node:
> >          ip_port = 8888
> >          ip_address = 192.168.0.1
> >          number = 0
> >          name = hoban1
> >          cluster = HobCluster
> > node:
> >          ip_port = 8888
> >          ip_address = 192.168.0.2
> >          number = 1
> >          name = hoban2
> >          cluster = HobCluster
> >
> >
> >
> > /etc/sysconfig/o2cb:
> > -------------------
> > O2CB_ENABLED=true
> > O2CB_STACK=o2cb
> > O2CB_BOOTCLUSTER=HobCluster
> > O2CB_HEARTBEAT_THRESHOLD=
> > O2CB_IDLE_TIMEOUT_MS=
> > O2CB_KEEPALIVE_DELAY_MS=
> > O2CB_RECONNECT_DELAY_MS=
> >
> >
> > Status:
> > --------
> > [root at hoban1 u03]# /etc/init.d/o2cb status
> > Driver for "configfs": Loaded
> > Filesystem "configfs": Mounted
> > Driver for "ocfs2_dlmfs": Loaded
> > Filesystem "ocfs2_dlmfs": Mounted
> > Checking O2CB cluster HobCluster: Online
> > Heartbeat dead threshold = 31
> >    Network idle timeout: 30000
> >    Network keepalive delay: 2000
> >    Network reconnect delay: 2000
> > Checking O2CB heartbeat: Active
> >
> >
> >
> > Additional Info:
> > ---------------
> > While transfering a large file I do an ls -l on any file within
> > the /u03(ocfs2) directory it goes quickly as expected.
> >
> > [root at hoban2 u03]# time ls -l asdf
> > -rw-r--r-- 1 root root 0 May 23 08:23 asdf
> >
> > real	0m0.003s
> > user	0m0.000s
> > sys	0m0.003s
> >
> >
> > During a large file transfer, a ls -l on the file being transfered
> > hangs for a very long time.
> > [root at hoban2 u03]# time ls -l
> > total 547340
> > -rw-r--r-- 1 root   root             0 May 23 08:23 asdf
> > -rw-r--r-- 1 root   root     560476160 May 24  2011 Enterprise-R5-U5-x86_64.iso
> > drwxr-xr-x 2 root   root          3896 May 22 09:29 lost+found
> > drwxr-xr-x 3 oracle oinstall      3896 May 23 14:32 oracle
> >
> > real	0m5.552s
> > user	0m0.000s
> > sys	0m0.004s
> >
> > Once the file has completed it's transfer, the ls works just fine and
> > nothing hangs. On occasion both terminal sessions will lock and need to
> > be killed, the file never completing it's transfer.
> >
> > Any suggestions are greatly appreciated.
> >
> > +-------------------------------+
> > +	      Keith		+
> > +-------------------------------+
> >
> >
> >
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>