Gfs2 Error
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file system becomes unavailable to the cluster. The I/O operation stops and the system waits for further I/O operations to stop with an error, preventing further damage. When this occurs, you can stop any other services or applications manually, after which you can reboot and remount the GFS2 file system to replay the journals. If the problem persists, you can unmount the file system from all nodes in the cluster and perform file system recovery with the fsck.gfs2 command. The GFS withdraw function is less severe than a kernel panic, which would cause another https://access.redhat.com/solutions/19324 node to fence the node. If your system is configured with the gfs2 startup script enabled and the GFS2 file system is included in the /etc/fstab file, the GFS2 file system will be remounted when you reboot. If the GFS2 file system withdrew because of perceived file system corruption, it is recommended that you run the fsck.gfs2 command before remounting the file system. In this case, in https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Global_File_System_2/s1-manage-gfs2withdraw.html order to prevent your file system from remounting at boot time, you can perform the following procedure: Temporarily disable the startup script on the affected node with the following command: # chkconfig gfs2 off Reboot the affected node, starting the cluster software. The GFS2 file system will not be mounted. Unmount the file system from every node in the cluster. Run the fsck.gfs2 on the file system from one node only to ensure there is no file system corruption. Re-enable the startup script on the affected node by running the following command: # chkconfig gfs2 on Remount the GFS2 file system from all nodes in the cluster. An example of an inconsistency that would yield a GFS2 withdraw is an incorrect block count. When the GFS kernel deletes a file from a file system, it systematically removes all the data and metadata blocks associated with that file. When it is done, it checks the block count. If the block count is not one (meaning all that is left is the disk inode itself), that indicates a file system inconsistency since the block count did not match the list of blocks found. You can override the GFS2 withdraw
problem Issues related to software problems. Post Reply Print view Search Advanced search 7 posts • Page 1 of http://www.centos.org/forums/viewtopic.php?t=18676 1 jldunham Posts: 1 Joined: 2007/04/18 20:34:03 Location: Stafford, Texas Contact: Contact jldunham Website Yahoo Messenger GFS using lock_dlm problem Quote Postby jldunham » 2007/04/18 21:03:39 Putting together https://linux.die.net/man/8/gfs2_mount a cluster with an attached SAN. After creating the logical volumes, etc. using lock_dlm as the lock scheme it will not mount - "/sbin/mount.gfs2: waiting for gfs_controld error mounting to start" about 10 times then "/sbin/mount.gfs2: gfs_controld not running" followed by "/sbin/mount.gfs2: error mounting lockproto lock_dlm"When I change the lock to lock_nolock it mounts. Of course, this will not work in the clustered file system. Did not have this problem with 4.4, just an issue with the inodes not updating correctly. Was hoping the error mounting lockproto gsf in 5 was better at it. The gfs_controld is in the path and on the system.Anyone with an idea?John Dunham Top powers-edu Posts: 5 Joined: 2007/04/19 15:55:22 Re: GFS using lock_dlm problem Quote Postby powers-edu » 2007/04/19 15:57:34 I cannot even get the cluster part working. I can do it in about 10 mins. with RHEL 5 and RHEL 4, but C5 seems to be broken. Top antras Posts: 4 Joined: 2007/07/13 09:56:23 Re: GFS using lock_dlm problem Quote Postby antras » 2007/07/13 09:59:44 I have the same problem on my centos5. Did you resolve that problem? Top zioalex Posts: 3 Joined: 2007/08/22 12:35:07 Re: GFS using lock_dlm problem Quote Postby zioalex » 2007/08/29 10:21:08 Hi dear,no news on this problem?I've the sameThxAlex Top djtremors Posts: 23 Joined: 2007/08/17 10:26:41 Re: GFS using lock_dlm problem Quote Postby djtremors » 2007/09/05 11:23:03 looks like no update to this and at this post, no updates to the module either.appears to be a kernel module
but its real purpose is in clusters, where multiple computers (nodes) share a common storage device. Above is the format typically used to mount a GFS2 filesystem, using the mount(8) command. The device may be any block device on which you have created a GFS2 filesystem. Examples include a single disk partition (e.g. /dev/sdb3), a loopback device, a device exported from another node (e.g. an iSCSI device or a gnbd(8) device), or a logical volume (typically comprised of a number of individual disks). device does not necessarily need to match the device name as seen on another node in the cluster, nor does it need to be a logical volume. However, the use of a cluster-aware volume manager such as CLVM2 (see lvm(8)) will guarantee that the managed devices are named identically on each node in a cluster (for much easier management), and will allow you to configure a very large volume from multiple storage units (e.g. disk drives). device must make the entire filesystem storage area visible to the computer. That is, you cannot mount different parts of a single filesystem on different computers. Each computer must see an entire filesystem. You may, however, mount several GFS2 filesystems if you want to distribute your data storage in a controllable way. mountpoint is the same as dir in the mount(8) man page. This man page describes GFS2-specific options that can be passed to the GFS2 file system at mount time, using the -o flag. There are many other -o options handled by the generic mount command mount(8). However, the options described below are specifically for GFS2, and are not interpreted by the mount command nor by the kernel's Virtual File System. GFS2 and non-GFS2 options may be intermingled after the -o, separated by commas (but no spaces). As an alternative to mount command line options, you may send mount options to gfs2 using "gfs2_tool margs" (after loading the gfs2 kernel module, but before mounting GFS2). For example, you may need to do this when working from an initial r