Resizing ext4 partition centos 5

On CentOS 5 the e4fsprogs RPM provides a separate binary (/sbin/resize4fs) for resizing ext4 partitions. # rpm -qf /sbin/resize2fs e2fsprogs-1.39-23.el5_5.1 # rpm -qf /sbin/resize4fs e4fsprogs-1.41.9-3.el5 As I found out today when resizing an LVM partition on one of our mongodb snapshot systems. # lvextend -L+50G /dev/mapper/mongo Extending logical volume mongo

Max processes 1024 limits.conf

We where having an issue with replica sets on our MongoDB databases changing primaries. The logs shows it was hitting resource limits creating new processes. [initandlisten] pthread_create failed: errno:11 Resource temporarily unavailable [initandlisten] can’t create new thread, closing connection There is a bug fix in the init.d available per https://jira.mongodb.org/browse/SERVER-6443

Unable to uninstall munin

While testing munin 2.x on debian, I was unable to uninstall it, Removing munin-node … [FAIL] Munin-Node appears to be unconfigured. … failed! invoke-rc.d: initscript munin-node, action “stop” failed. dpkg: error processing munin-node (–purge): subprocess installed pre-removal script returned error exit status 6 [FAIL] Munin-Node appears to be unconfigured. …

ERROR: Module backupdriver is in use

While updating several of our remaining systems from r1soft CDP 2 to CDP 3 we’ve been getting the following error, ERROR: Module backupdriver is in use r1soft-uninstall-buagent -R This uninstaller will remove the following.. File /etc/init.d/buagent File /usr/bin/buagent File /var/lock/buagent.lock File /var/run/buagent.pid File /usr/bin/r1key File /usr/bin/r1soft-cki File /usr/bin/r1soft-report.sh File /usr/bin/r1soft-uninstall-buagent