search for: debugocfs

Hi experts, My customer issued debugocfs to check for file_size and extent info but values such as file_size, alloc_size, next_free_ext were 0. (/dev/sdi1 contains datafiles and arc files) # debugocfs -a 0 /dev/sdi1 debugocfs 1.0.10-PROD1 Fri Mar 5 14:35:29 PST 2004 (build fcb0206676afe0fcac47a99c90de0e7b) file_extent_0: file_number = 12...

I am still having this weird problem with nodes hanging while I'm running OCFS. I'm using OCFS 1.0.9-12 and RHAS 2.1 I've been working on tracking it down and here's what I've got so far: 1. I create a file from node 0. This succeeds; I can /bin/cat the file, append, edit, or whatever. 2. From node 1, I do an operation that accesses the DirNode (e.g. /bin/ls) 3. Node 0

I am still having this weird problem with nodes hanging while I'm running OCFS. I'm using OCFS 1.0.9-12 and RHAS 2.1 I've been working on tracking it down and here's what I've got so far: 1. I create a file from node 0. This succeeds; I can /bin/cat the file, append, edit, or whatever. 2. From node 1, I do an operation that accesses the DirNode (e.g. /bin/ls) 3. Node 0

...ike a inode or datablock locking issue and/or race condition... it's locked up right now; i don't really know what to look for but here's some diagnostics info - can somebody make any sense of this? i can leave it locked up for a day or two so if anyone would like to see output from a debugocfs command before monday i can do that... i might be able to leave it locked up until Monday afternoon we'll see how long before the DB locks up and someone yells. :) this is a consistently recurring error at my site. we can't put RAC into production if it's going to hang due to some r...

...ace from the deleted files. ocfs is mounted on 1 node only. # fsck.ocfs -n /dev/sdp1 fsck.ocfs 1.1.2-PROD1 Fri Apr 2 14:04:10 PST 2004 (build 2df841d19c031db220f8cfb73439339d) /dev/sdp1: clean, 282 objects, 5344/10234 blocks what are these 282 objects? the volume contains only 26 dirs/files: # debugocfs -l /dev/sdp1 debugocfs 1.1.2-PROD1 Fri Apr 2 14:04:05 PST 2004 (build fcb0206676afe0fcac47a99c90de0e7b) filelisting: File1 = /tablespaces/ File2 = /tablespaces/vbv/ File3 = /tablespaces/undo2_01.dbf File4 = /tablespaces/undo1_01.dbf File5 = /tablespace...

...to > use it in production unless Oracle feels the combination is not yet > trustworthy. well - tough one, it works, but the big issue is that you rredologfile need to be contiguous on disk, otherwise you might have failures, exact same goes for rhel3 as rhas21. you can see that by running debugocfs eg : /ocfs/log/foo1.dbf -> debugocfs -f /log/foo1.dbf /dev/sdXXX that will show how many offsets (should only have one) in the extents if its more than 1, dd it over with a very large blocksize and see if that ends up being 1 contig file. if you do that, everything should work, however, there j...

...unless Oracle feels the combination is not yet > > trustworthy. > > well - tough one, it works, but the big issue is that you rredologfile > need to be contiguous on disk, otherwise you might have > failures, exact > same goes for rhel3 as rhas21. you can see that by running debugocfs > eg : > /ocfs/log/foo1.dbf -> debugocfs -f /log/foo1.dbf /dev/sdXXX > that will show how many offsets (should only have one) in the extents > if its more than 1, dd it over with a very large blocksize and see if > that ends up being 1 contig file. > > if you do that, every...

...unless Oracle feels the combination is not yet > > trustworthy. > > well - tough one, it works, but the big issue is that you rredologfile > need to be contiguous on disk, otherwise you might have > failures, exact > same goes for rhel3 as rhas21. you can see that by running debugocfs > eg : > /ocfs/log/foo1.dbf -> debugocfs -f /log/foo1.dbf /dev/sdXXX > that will show how many offsets (should only have one) in the extents > if its more than 1, dd it over with a very large blocksize and see if > that ends up being 1 contig file. > > if you do that, every...

...t project You are developing, really usefull,but.... Compiling the OCFS System under a clean RedHat 8 Installaton renders an error during compilation: make -C format make[2]: Entering directory `/root/ocfs-1.0.8/tools/format' gcc -g -O2 -pipe -I../../ocfs2/Common/inc -Iinc -I../../tools/debugocfs -I../../ocfs2/Linux/inc -DLINUX -DUSERSPACE_TOOL -o format.o -c format.c In file included from ../../tools/debugocfs/dummy.h:108, from inc/format.h:30, from format.c:27: ../../ocfs2/Common/inc/ocfsdisk.h:161: parse error before "atomic_t" ../../ocfs2/Com...

Greetings, Having read about the previous OSFS hangs, I think this one that we are seeing is different, but I'm not sure if this is caused by OCFS or the Linux OS. We are running OCFS Version 1.09 with Linux AS 3.0/9i RAC. We have a 2 node Intel Cluster (Node 1 and Node 2). This morning the DBA tried to do an "ls" command on /u06/oradata/database

Another question. When my database is running, I do [oracle@LNCSTRTLDB03 LPTE3]$ cp --o_direct xdb01.dbf /tmp cp: cannot open `xdb01.dbf' for reading: Permission denied [oracle@LNCSTRTLDB03 LPTE3]$ When the database is shudown it works. Is this normal for ocfs because with any other filesystem I can just copy a file at any time (Its only a testing, I know I cant copy datafiles and have

...y done a down() on a semaphore in the /u06/oradata/database directory. Pretty much every operation inside that directory from that node will hang once the first hang occurs. The best place to go is to Oracle Support at this point. But in any case, the information they will want is a "debugocfs -f /oradata/database/ /dev/raw/raw##" and a "debugocfs -d /oradata/database/ /dev/raw/raw##" and a "fsck.ocfs -v /dev/raw/raw##". My guess is either that the fsck.ocfs output will show an ERROR that says you have a system file locked by another node, or that you have...

...t: Re: [Ocfs-users] A couple more minor questions about OCFS and > RHEL3 > well - tough one, it works, but the big issue is that you rredologfile > need to be contiguous on disk, otherwise you might have > failures, exact > same goes for rhel3 as rhas21. you can see that by running debugocfs > eg : > /ocfs/log/foo1.dbf -> debugocfs -f /log/foo1.dbf /dev/sdXXX > that will show how many offsets (should only have one) in the extents > if its more than 1, dd it over with a very large blocksize and see if > that ends up being 1 contig file. > > if you do that, every...

Sunil Mushran wrote: >And as that gets into reading debugocfs outputs, the user has to make the determination, if the effort is worth the gain in performance. Why only logfiles? Well, because Oracle performs large ios only to the logfiles. The ios to be datafiles are in smaller chunks. Hope this helps. Sunil I'd like to point out a small mistake in thi...

Oracle appears to have Wim chained in the basement, forced to answer mailing list questions at all hours. I do appreciate it. Our cluster has been stable since we installed RAC, but a few minor issues have me concerned. First, our storage array seems to maintain continuous low-level activity even when the database is shut down. The CPUs spend a modest amount of time in iowait state while this

...ll prevent the bug. Step 2 changes "file_lock" (in step 3) from OCFS_DLM_ENABLE_CACHE_LOCK to OCFS_DLM_NO_LOCK. 1. create a new directory. 2. create a file in the new directory and /bin/cat the file from a different node than the one where you created the directory. delete the file. 3. debugocfs -D /relative/path/to/newdir/from/mountpoint/ /dev/device -- confirm that "file_lock = OCFS_DLM_NO_LOCK" 4. /bin/mv all the datafiles to the new directory. 5. /bin/rmdir the old directory 6. rename the new directory to the same name as the old. Happy hacking, everyone... ;) /js Jerem...

...are using RHEL ES 3.0 Update 6, kernel version is 2.4.21-37.ELsmp. We have 5-node Oracle 10g RAC (10.1.0.4). > > # cat /proc/ocfs/version > 1.0.14-PROD1 Fri Jan 7 13:58:41 PST 2005 (build 7a10bc19875bb2abf8a7fd110639b81b) > > One problem with ocfs v1 here is that when I used "debugocfs -h /dev/emcpowere1" command, it always show that "curr_master=INVALID_MASTER". My question is: Is this a serious problem? Is it Ok to ignore this message? > > Another problem is that I created some sub-folders on one node (db1), and 4 nodes (db1,db2,db3,db4) can see these dire...

We are using RHEL ES 3.0 Update 6, kernel version is 2.4.21-37.ELsmp. We have 5-node Oracle 10g RAC (10.1.0.4). # cat /proc/ocfs/version 1.0.14-PROD1 Fri Jan 7 13:58:41 PST 2005 (build 7a10bc19875bb2abf8a7fd110639b81b) One problem with ocfs v1 here is that when I used "debugocfs -h /dev/emcpowere1" command, it always show that "curr_master=INVALID_MASTER". My question is: Is this a serious problem? Is it Ok to ignore this message? Another problem is that I created some sub-folders on one node (db1), and 4 nodes (db1,db2,db3,db4) can see these directories, b...

Hi all... I have a strange problem. 2 of my mount points already use 7% of space, even when I check the directory is empty. When I re-format it, it release the space for a while, after 1 or 2 days, the space is used again for 7% - 10 %. What could be the reason? I am using RHAS 2.1 Enterprise Kernel 2.1 and OCFS release 1.0.9-6 Thanks Jeram

A few weeks back we opened a TAR with Oracle support to determine whether an OCFS (1.0.9-12) + async configuration was considered supportable. At first a technician said yes, but I followed up with Wim's explanation of how that combination is potentially troublesome and inadequately tested. The technician double-checked, then confirmed that OCFS + async is considered risky. He did say that a