Package: pacemaker Version: 1.1.7-1 Severity: important Tags: upstream Dear Maintainer,
we are using pacemaker/corosync for building our clusters. In addition, we use puppet to build our systems. Since we switched from squeeze to wheezy, we found a serious problem within the crmd process. The problem can be triggered like this: * requirement: a working pacemaker/corosync cluster 1. Login to all nodes of the cluster 2. run 'watch -n1 "lsof -p `pidof crmd` | grep socket | wc -l"' on all nodes to see the number of open sockets of the crmd process 3. choose one node of the cluster and save the configuration with 'crm configure save /tmp/config.bak' 4. update the configuration with the saved file: 'crm configure load update /tmp/config.bak' 5. The number of open socket of at least one node should increase now The problem is, that puppet triggers the last command on every run (in our case every 10 minutes). The number of sockets keep increasing till max_open_files is reached (usually 1024). After that, the cluster behaves unexpectedly. In our case, it lost all of it's resources till the next puppet run. I testet the above with a squeeze installation and the problem did not appear. We found the same problem on RedHat systems using the same pacemaker version (1.1.7). As a workaround, we disabled the pacemaker module in puppet. But I think this is a critical problem, since the pacemaker cluster who should provide high availability can cause a serious downtime. Regards, Christian -- System Information: Debian Release: 7.1 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages pacemaker depends on: ii adduser 3.113+nmu3 ii corosync 1.4.2-3 ii libbz2-1.0 1.0.6-4 ii libc6 2.13-38 ii libcfg4 1.4.2-3 ii libcib1 1.1.7-1 ii libconfdb4 1.4.2-3 ii libcoroipcc4 1.4.2-3 ii libcpg4 1.4.2-3 ii libcrmcluster1 1.1.7-1 ii libcrmcommon2 1.1.7-1 ii libesmtp6 1.0.6-1+b1 ii libglib2.0-0 2.33.12+really2.32.4-5 ii libgnutls26 2.12.20-7 ii liblrm2 1.0.9+hg2665-1 ii libltdl7 2.4.2-1.1 ii libncurses5 5.9-10 ii libpam0g 1.1.3-7.1 ii libpe-rules2 1.1.7-1 ii libpe-status3 1.1.7-1 ii libpengine3 1.1.7-1 ii libpils2 1.0.9+hg2665-1 ii libplumb2 1.0.9+hg2665-1 ii libsnmp15 5.4.3~dfsg-2.7 ii libssl1.0.0 1.0.1e-2 ii libstonithd1 1.1.7-1 ii libtinfo5 5.9-10 ii libtransitioner1 1.1.7-1 ii libuuid1 2.20.1-5.3 ii libxml2 2.8.0+dfsg1-7+nmu1 ii libxslt1.1 1.1.26-14.1 ii python 2.7.3-4 ii python2.7 2.7.3-6 ii resource-agents 1:3.9.2-5+deb7u1 pacemaker recommends no packages. pacemaker suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
