One more thing, file is opened with create
options FILE_NO_INTERMEDIATE_BUFFERING.
---------- Forwarded message ----------
From: suresh chepuri Date: Fri, Dec 5, 2008 at 3:35 PM Subject: Re: [ntfsd] File Deletion on cluster disk before Failover… To: Windows File Systems Devs Interest List
Thanks! Harish and Sarosh… Sarosh, the file is created and it appeared for a while before doing failover. There are some writes too. Is it possible, the transaction may not be committed by the time write happen? Is there any timelines/limit to commit the transaction? if this happen whether user is notified about the missing file. I don’t see any eventlog message in the application and system event log related to this.
Thanks,
Best Regards, Suresh
On Fri, Dec 5, 2008 at 7:54 AM, wrote:
> To answer Harish’s question … > > It looks like the creation of the file made it to the journal (log) but the > volume probably failed-over before the transaction under which the create > was logged was committed. This caused the transaction to be rolled back on > recovery (when the volume was mounted on the other node in the cluster). > Hence the file is not seen on the new node. > > Sarosh. > File System Filter Lead > Microsoft Corp > > This posting is provided “AS IS” with no warranties, and confers no Rights > > — > NTFSD is sponsored by OSR > > For our schedule debugging and file system seminars > (including our new fs mini-filter seminar) visit: > http://www.osr.com/seminars > > You are currently subscribed to ntfsd as: xxxxx@gmail.com > To unsubscribe send a blank email to xxxxx@lists.osr.com >
This question is in reply to saroshh answer
Is it possible that transaction logs are not committed before failover. It
means that data is not consistent across failover. This failover is a manual
failover through cluster admin not a result of crash i guess Please correct
if I am wrong
On Fri, Dec 5, 2008 at 7:12 PM, suresh chepuri wrote:
> One more thing, file is opened with create > options FILE_NO_INTERMEDIATE_BUFFERING. > > > ---------- Forwarded message ---------- > From: suresh chepuri > Date: Fri, Dec 5, 2008 at 3:35 PM > Subject: Re: [ntfsd] File Deletion on cluster disk before Failover… > To: Windows File Systems Devs Interest List > > > Thanks! Harish and Sarosh… > Sarosh, the file is created and it appeared for a while before doing > failover. There are some writes too. Is it possible, the transaction may not > be committed by the time write happen? Is there any timelines/limit to > commit the transaction? if this happen whether user is notified about the > missing file. I don’t see any eventlog message in the application and system > event log related to this. > > Thanks, > > Best Regards, > Suresh > > On Fri, Dec 5, 2008 at 7:54 AM, wrote: > >> To answer Harish’s question … >> >> It looks like the creation of the file made it to the journal (log) but >> the volume probably failed-over before the transaction under which the >> create was logged was committed. This caused the transaction to be rolled >> back on recovery (when the volume was mounted on the other node in the >> cluster). Hence the file is not seen on the new node. >> >> Sarosh. >> File System Filter Lead >> Microsoft Corp >> >> This posting is provided “AS IS” with no warranties, and confers no Rights >> >> — >> NTFSD is sponsored by OSR >> >> For our schedule debugging and file system seminars >> (including our new fs mini-filter seminar) visit: >> http://www.osr.com/seminars >> >> You are currently subscribed to ntfsd as: xxxxx@gmail.com >> To unsubscribe send a blank email to xxxxx@lists.osr.com >> > > > — NTFSD is sponsored by OSR For our schedule debugging and file system > seminars (including our new fs mini-filter seminar) visit: > http://www.osr.com/seminars You are currently subscribed to ntfsd as: > xxxxx@gmail.com To unsubscribe send a blank email to > xxxxx@lists.osr.com
– Regards Rohit Gauba
“A positive thought is the seed of a positive result”
Yes Rohit, it is a manual failover from Cluster Admin…
-Suresh
On Fri, Dec 5, 2008 at 7:46 PM, Rohit wrote:
> This question is in reply to saroshh answer > Is it possible that transaction logs are not committed before failover. It > means that data is not consistent across failover. This failover is a manual > failover through cluster admin not a result of crash i guess Please correct > if I am wrong > > > On Fri, Dec 5, 2008 at 7:12 PM, suresh chepuri > > wrote: > >> One more thing, file is opened with create >> options FILE_NO_INTERMEDIATE_BUFFERING. >> >> >> ---------- Forwarded message ---------- >> From: suresh chepuri >> Date: Fri, Dec 5, 2008 at 3:35 PM >> Subject: Re: [ntfsd] File Deletion on cluster disk before Failover… >> To: Windows File Systems Devs Interest List >> >> >> Thanks! Harish and Sarosh… >> Sarosh, the file is created and it appeared for a while before doing >> failover. There are some writes too. Is it possible, the transaction may not >> be committed by the time write happen? Is there any timelines/limit to >> commit the transaction? if this happen whether user is notified about the >> missing file. I don’t see any eventlog message in the application and system >> event log related to this. >> >> Thanks, >> >> Best Regards, >> Suresh >> >> On Fri, Dec 5, 2008 at 7:54 AM, wrote: >> >>> To answer Harish’s question … >>> >>> It looks like the creation of the file made it to the journal (log) but >>> the volume probably failed-over before the transaction under which the >>> create was logged was committed. This caused the transaction to be rolled >>> back on recovery (when the volume was mounted on the other node in the >>> cluster). Hence the file is not seen on the new node. >>> >>> Sarosh. >>> File System Filter Lead >>> Microsoft Corp >>> >>> This posting is provided “AS IS” with no warranties, and confers no >>> Rights >>> >>> — >>> NTFSD is sponsored by OSR >>> >>> For our schedule debugging and file system seminars >>> (including our new fs mini-filter seminar) visit: >>> http://www.osr.com/seminars >>> >>> You are currently subscribed to ntfsd as: xxxxx@gmail.com >>> To unsubscribe send a blank email to xxxxx@lists.osr.com >>> >> >> >> — NTFSD is sponsored by OSR For our schedule debugging and file system >> seminars (including our new fs mini-filter seminar) visit: >> http://www.osr.com/seminars You are currently subscribed to ntfsd as: >> xxxxx@gmail.com To unsubscribe send a blank email to >> xxxxx@lists.osr.com > > > > > – > Regards > Rohit Gauba > > “A positive thought is the seed of a positive result” > — NTFSD is sponsored by OSR For our schedule debugging and file system > seminars (including our new fs mini-filter seminar) visit: > http://www.osr.com/seminars You are currently subscribed to ntfsd as: > xxxxx@gmail.com To unsubscribe send a blank email to > xxxxx@lists.osr.com