similar to: GFS2 hangs after one node going down

Hi guys, my goal is to create a reliable virtualization environment using CentOS 6.4 and KVM, I've three nodes and a clustered GFS2. The enviroment is up and working, but I'm worry for the reliability, if I turn the network interface down on one node to simulate a crash (for example on the node "node6.blade"): 1) GFS2 hangs (processes go in D state) until node6.blade get

Hi, I'm sometimes getting a failure of connecting 2 nodes when Tinc is started and configured in a LAN. In the logs, there are some unexpected dropped packets with very high or negative seq. I can reproduce this issue ~2% of the time. When this happens, the 2 nodes can no longer ping or ssh each other through the tunnel interface but using eth0 works fine. The connection can recover after at

On Sun, 2010-01-31 at 13:28 +1100, Lang Hames wrote: > Hi Sebastian, > > It boils down to this: The previous heuristic solver could return > infinite cost solutions in some rare cases (despite finite-cost > solutions existing). The new solver is still heuristic, but it should > always return a finite cost solution if one exists. It does this by > avoiding early reduction of

Hi Sebastian, It boils down to this: The previous heuristic solver could return infinite cost solutions in some rare cases (despite finite-cost solutions existing). The new solver is still heuristic, but it should always return a finite cost solution if one exists. It does this by avoiding early reduction of infinite spill cost nodes via R1 or R2. To illustrate why the early reductions can be a

hi kuhlen, what you said is correct. i am talking about how you are going to arrange these codewords into an array, i.e. in the function _make_decode_table. there he uses node bytes and leaf words for memory management. i got a 24 bit platform. so if i assume that max. codeword length that could be possible as 24 bits can i allocate a memory of (2 * used entries - 2), to arrange the whole tree in

Dear gluster experts, We have encountered a severe performance issue related to quota feature of gluster. My underlying fs is lvm with xfs format. The problem is if quota is enabled the io performance is about 26MB/s but with quota disabled the io performance is 216MB/s. Any one known what's the problem? BTW I have reproduce it several times and it is related to quota indeed. Here's the

Hi everybody, I have tested CTDB+GFS2+CMAN under Debian. It works good but I do not understand some points. It is possible to run the CTDB defining it under services section in cluster.conf but running it on the second node shuts down the process at the first one. My CTDB configuration implies 2 active-active nodes. Does CTDB care if the node starts with clean_start="0" or

Hi, the implementation of xl cpupool-numa-split is broken. It basically deals with only one poolid, but there are two to consider: the one from the original root CPUpool, the other from the newly created one. On my machine the current output looks like: root@dosorca:/data/images# xl cpupool-numa-split libxl: error: libxl.c:2803:libxl_create_cpupool Could not create cpupool error on creating

Somehow I've ended up with duplicate domids. domid=15 name=node14 (names sanitized) # virsh list --all Id Name State ---------------------------------------------------- 1 node1 running 2 node2 running 3 node3 running 5 node4 running 6

Hello, ok, I found that cpu pinning was wrong, so I corrected it to be 1:1. The issue with iozone remains the same. The spec is running, however, it runs slower than 1-NUMA case. The corrected XML looks like follows: <cpu mode='host-passthrough'><topology sockets='8' cores='4' threads='1'/><numa><cell cpus='0-3'

Hi, I'm trying to put in place a KVM cluster (using clvm and gfs2), but I'm running into some issues with either sanlock or virtlockd. All virtual machines are handled via the cluster (in /etc/cluser/cluster.conf) but I want some kind of locking to be in place as extra security measurement. Sanlock ======= At first I tried sanlock, but it seems if one node goes down unexpectedly,

Hello list, we continue our tests using Dovecot on a RHEL 6.1 Cluster Backend with GFS2, also we are using dovecot as a Director for user node persistence, everything was ok until we started stress testing the solution with imaptest, we had many deadlocks, cluster filesystems corruptions and hangs, specially in index filesystem, we have configured the backend as if they were on a NFS like setup

Andreas Dilger wrote: > On Feb 20, 2009 20:23 +0300, Kirill Kuvaldin wrote: >> I'm evaluating different cluster file systems that can work with large >> clustered environment, e.g. hundreds of nodes connected to a SAN over >> FC. >> >> So far I looked at OCFS2 and GFS2, they both worked nearly the same >> in terms of performance, but since I ran my

Hi all, Where i want to arrive: 1) having two storage server replicating partition with DRBD 2) exporting via GNBD from the primary server the drbd with GFS2 3) inporting the GNBD on some nodes and mount it with GFS2 Assuming no logical error are done in the last points logic this is the situation: Server 1: LogVol09, DRDB configured as /dev/drbd0 replicated to Server 2. DRBD seems to work

Ok, I'm experiencing slowness serving SAN-based GFS2 filesystems (of a specific SAN configuration). Here's my layout: I have a server cluster. OS= RHEL 5.4 (both nodes...) kernel= 2.6.18-194.11.3.el5 Samba= samba-3.0.33-3.14.el5 *On this cluster are 6 GFS2 Clustered filesystems. *4 of these volumes belong to one huge LUN (1.8 TB), spanning 8 disks. The other 2 remaining volumes are 1

CentOS Errata and Bugfix Advisory 2008:0501 Upstream details at : https://rhn.redhat.com/errata/RHBA-2008-0501.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 629f45a15a6cef05327f23d73524358d kmod-gfs2-1.92-1.1.el5_2.2.i686.rpm dcc5d2905e9c0cf4d424000ad24c6a5b kmod-gfs2-PAE-1.92-1.1.el5_2.2.i686.rpm

I have tried sending this before, but it did not appear to get through. Hello, When using gfs2 with quotas on a SAN that is providing storage to two clustered systems running CentOS6.5, one of the systems can crash. This crash appears to be caused when a user tries to add something to a SAN disk when they have exceeded their quota on that disk. Sometimes a stack trace is produced in

Hello, I will create a Xen cluster and using GFS2 (with conga, ...) to create a new Xen cluster. I know that GFS2 is prod ready since RHEL 5.3. Do you know whent Centos 5.3 will be ready ? Can I install my GFS2 FS with centos 5.2 and then "simply" upgrade to 5.3 without reinstallation ? Tx

I'm searching for the SRPM corresponding to this installed RPM. % yum list | grep gfs2 gfs2-kmod-debuginfo.x86_64 1.92-1.1.el5_2.2 It is missing from: http://msync.centos.org/centos-5/5/os/SRPMS/ What I need from the SRPM are the patches. I'm working through some issues using the source code, and the patches in the RedHat SRPM

CentOS Errata and Bugfix Advisory 2008:0501 Upstream details at : https://rhn.redhat.com/errata/RHBA-2008-0501.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: b934e068a7daf76e15080d43dd3101ca kmod-gfs2-1.92-1.1.el5_2.2.x86_64.rpm 109ffdfbb849dda14a89a6964310c254 kmod-gfs2-xen-1.92-1.1.el5_2.2.x86_64.rpm Source: