Hi ocfs2 developers, there are some news about the schedule for a new ocfs2 release that solve the actual bug/limitations? I can see an 1.4.7 release tagged here: http://oss.oracle.com/git/?p=ocfs2-1.4.git;a=summary Is there a planned release date? in my environment (about 5000000 files with 300000 new files/deletion per day) I see load until 1000 and I/O almost blocked for some hours of the day I think this is caused by "The file system now scans the orphan directory at a regular interval to delete orphaned files that are no longer in use" is this behaviuor still present in the 1.4.7 tag? thanks Nicola -------------- next part -------------- An HTML attachment was scrubbed... URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20100415/c9ffae3d/attachment.html
I discovered our four node cluster running on RedHat EL5, Ocfs2 1.2.6 and Oracle
10.2.0.3 have memory leak. I suspect ocfs2, but I could be wrong. I suspect
ocfs2 because when we run RMAN backup the free memory goes from 8 GB down to 200
MB. When I umount the ocfs2 backupdisk after the backup is finished, the memory
is released again.
I want to test it some more and found a script to test writing to the disk. This
script contains a command saying "echo 3 >
/proc/sys/vm/drop_caches". Is this a safe command to run in production?
Meaning the cluster and oracle database is running. Or should I run the
"sync" command pre to this command? Or should I never run this command
in a production environment? I'm afraid that this command will free up
memory not written to disk yet. And therefore I would get into trouble in my
production environment. The script I want to test looks like this and is
captured from this mailing list:
------
#!/bin/bash
dd if=/dev/urandom of=/tmp/file bs=1024 count=75
COUNT2=`cat /tmp/COUNT2`
COUNT1=0
DIR1=$(printf "%03d" $COUNT2)
mkdir /data/$DIR1
while [ "$COUNT1" -lt 101 ]
do
cp -v /tmp/file /data/$DIR1/file.$COUNT1
(( COUNT1++ ))
done
(( COUNT2++ ))
echo $COUNT2 > /tmp/COUNT2
------
I then executed it as follows:
while [ true ] ; \
do /root/bin/populateocfs2.sh ; echo 3 > /proc/sys/vm/drop_caches ;
sleep 2 ; \
vmstat |tail -n 1 >> /root/tmp/sysstats.txt ; done
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We are hoping to release it anyday now. Have you filed a bug about your issue? I have no recollection of any reports of such an issue. Orphan scanning has not changed in 1.4.7. File a bz. We'll need to get more information to understand the problem you are encountering. Mailing List SVR wrote:> > Hi ocfs2 developers, > > there are some news about the schedule for a new ocfs2 release that > solve the > > actual bug/limitations? I can see an 1.4.7 release tagged here: > > http://oss.oracle.com/git/?p=ocfs2-1.4.git;a=summary > > Is there a planned release date? > > in my environment (about 5000000 files with 300000 new files/deletion > per day) I see load until 1000 and I/O almost blocked for some hours > of the day I think this is caused by > > "The file system now scans the orphan directory at a regular interval > to delete orphaned files that are no longer in use" > > is this behaviuor still present in the 1.4.7 tag? > > thanks > > Nicola >
Sunil, Is there a online/offline defrag in the 1.47 version. We are having some out of space issues due to fragmentation. I am preparing to move to a new partition that will give me sparse and inline functions but I feel this could become an issue again. David -----Original Message----- From: ocfs2-users-bounces at oss.oracle.com [mailto:ocfs2-users-bounces at oss.oracle.com] On Behalf Of Sunil Mushran Sent: Thursday, April 15, 2010 12:14 PM To: lists at svrinformatica.it Cc: ocfs2-users at oss.oracle.com Subject: Re: [Ocfs2-users] new ocfs2 release? We are hoping to release it anyday now. Have you filed a bug about your issue? I have no recollection of any reports of such an issue. Orphan scanning has not changed in 1.4.7. File a bz. We'll need to get more information to understand the problem you are encountering. Mailing List SVR wrote:> > Hi ocfs2 developers, > > there are some news about the schedule for a new ocfs2 release that > solve the > > actual bug/limitations? I can see an 1.4.7 release tagged here: > > http://oss.oracle.com/git/?p=ocfs2-1.4.git;a=summary > > Is there a planned release date? > > in my environment (about 5000000 files with 300000 new files/deletion > per day) I see load until 1000 and I/O almost blocked for some hours > of the day I think this is caused by > > "The file system now scans the orphan directory at a regular interval > to delete orphaned files that are no longer in use" > > is this behaviuor still present in the 1.4.7 tag? > > thanks > > Nicola >_______________________________________________ Ocfs2-users mailing list Ocfs2-users at oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
Sunil, Will this be bug be corrected? I think it what im running into.... http://oss.oracle.com/bugzilla/show_bug.cgi?id=1189 I see it was commited to the 1.4 branch but im not sure if it had been merged into 1.4.7 David -----Original Message----- From: Sunil Mushran [mailto:sunil.mushran at oracle.com] Sent: Thursday, April 15, 2010 1:46 PM To: David Murphy Cc: lists at svrinformatica.it; ocfs2-users at oss.oracle.com Subject: Re: [Ocfs2-users] new ocfs2 release? The announcement will cover this topic. David Murphy wrote:> Sunil, > > Is there a online/offline defrag in the 1.47 version. We are having some > out of space issues due to fragmentation. I am preparing to move to anew> partition that will give me sparse and inline functions but I feelthis> could become an issue again. > > David > > -----Original Message----- > From: ocfs2-users-bounces at oss.oracle.com > [mailto:ocfs2-users-bounces at oss.oracle.com] On Behalf Of Sunil Mushran > Sent: Thursday, April 15, 2010 12:14 PM > To: lists at svrinformatica.it > Cc: ocfs2-users at oss.oracle.com > Subject: Re: [Ocfs2-users] new ocfs2 release? > > We are hoping to release it anyday now. > > Have you filed a bug about your issue? I have no recollection of any > reports of such an issue. Orphan scanning has not changed in 1.4.7. > > File a bz. We'll need to get more information to understand the > problem you are encountering. > > Mailing List SVR wrote: > >> Hi ocfs2 developers, >> >> there are some news about the schedule for a new ocfs2 release that >> solve the >> >> actual bug/limitations? I can see an 1.4.7 release tagged here: >> >> http://oss.oracle.com/git/?p=ocfs2-1.4.git;a=summary >> >> Is there a planned release date? >> >> in my environment (about 5000000 files with 300000 new files/deletion >> per day) I see load until 1000 and I/O almost blocked for some hours >> of the day I think this is caused by >> >> "The file system now scans the orphan directory at a regular interval >> to delete orphaned files that are no longer in use" >> >> is this behaviuor still present in the 1.4.7 tag? >> >> thanks >> >> Nicola >> >> > > > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users at oss.oracle.com > http://oss.oracle.com/mailman/listinfo/ocfs2-users > >