1: share your config, nobody has the crystal ball!!! 2: you need to be share that your fencing is working. 2016-01-05 19:37 GMT+01:00 B.Baransel BAĞCI <bagcib@xxxxxxxxxx>: > Hi list, > > I have some problems with GFS2 with failed nodes. After one of the cluster > nodes fenced and rebooted, it cannot mount some of the gfs2 file systems but > hangs on the mount operation. No output. I've waited nearly 10 minutes to > mount single disk but it didn't respond. Only solution is to shutdown all > nodes and clean start of the cluster. I'm suspecting journal size or file > system quotas. > > I have 8-node rhel-6 cluster with GFS2 formatted disks which are all mounted > by all nodes. > There are two types of disk: > Type A : > ~50 GB disk capacity > 8 journal with size 512MB > block-size: 1024 > very small files (Avg: 50 byte - sym.links) > ~500.000 file (inode) > Usage: 10% > Nearly no write IO (under 1000 file per day) > No user quota (quota=off) > Mount options: async,quota=off,nodiratime,noatime > > Tybe B : > ~1 TB disk capacity > 8 journal with size 512MB > block-size: 4096 > relatively small files (Avg: 20 KB) > ~5.000.000 file (inode) > Usage: 20% > write IO ~50.000 file per day > user quota is on (some of the users exceeded quota) > Mount options: async,quota=on,nodiratime,noatime > > To improve performance, I set journal size to 512 MB instead of 128 MB > default. All disk are connected with fiber from SAN Storage. All disk on > cluster LVM. All nodes connected to each other with private Gb-switch. > > For example, after "node5" failed and fenced, it can re-enter the cluster. > When i try "service gfs2 start", it can mount "Type A" disks, but hangs on > the first "Tybe B" disk. Logs hangs on the "Trying to join cluster lock_dlm" > message: > > ... > Jan 05 00:01:52 node5 lvm[4090]: Found volume group "VG_of_TYPE_A" > Jan 05 00:01:52 node5 lvm[4119]: Activated 2 logical volumes in volume > group VG_of_TYPE_A > Jan 05 00:01:52 node5 lvm[4119]: 2 logical volume(s) in volume group > "VG_of_TYPE_A" now active > Jan 05 00:01:52 node5 lvm[4119]: Wiping internal VG cache > Jan 05 00:02:26 node5 kernel: Slow work thread pool: Starting up > Jan 05 00:02:26 node5 kernel: Slow work thread pool: Ready > Jan 05 00:02:26 node5 kernel: GFS2 (built Dec 12 2014 16:06:57) > installed > Jan 05 00:02:26 node5 kernel: GFS2: fsid=: Trying to join cluster > "lock_dlm", "TESTCLS:typeA1" > Jan 05 00:02:26 node5 kernel: GFS2: fsid=TESTCLS:typeA1.5: Joined > cluster. Now mounting FS... > Jan 05 00:02:27 node5 kernel: GFS2: fsid=TESTCLS:typeA1.5: jid=5, > already locked for use > Jan 05 00:02:27 node5 kernel: GFS2: fsid=TESTCLS:typeA1.5: jid=5: > Looking at journal... > Jan 05 00:02:27 node5 kernel: GFS2: fsid=TESTCLS:typeA1.5: jid=5: Done > Jan 05 00:02:27 node5 kernel: GFS2: fsid=: Trying to join cluster > "lock_dlm", "TESTCLS:typeA2" > Jan 05 00:02:27 node5 kernel: GFS2: fsid=TESTCLS:typeA2.5: Joined > cluster. Now mounting FS... > Jan 05 00:02:28 node5 kernel: GFS2: fsid=TESTCLS:typeA2.5: jid=5, > already locked for use > Jan 05 00:02:28 node5 kernel: GFS2: fsid=TESTCLS:typeA2.5: jid=5: > Looking at journal... > Jan 05 00:02:28 node5 kernel: GFS2: fsid=TESTCLS:typeA2.5: jid=5: Done > Jan 05 00:02:28 node5 kernel: GFS2: fsid=: Trying to join cluster > "lock_dlm", "TESTCLS:typeB1" > > > I've waited nearly 10 minutes in this state without respond or log. In this > state, I cannot do `ls` in another nodes for this file system. Any idea of > the cause of the problem? How is the cluster affected by journal size or > count? > -- > B.Baransel BAĞCI > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- .~. /V\ // \\ /( )\ ^`~'^ -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
