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Andres Rodriguez
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Jul 20, 2012
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Documentation pointers: | ||
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Configuration system: | ||
http://fabbione.fedorapeople.org/CCS.pdf | ||
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Configuration using LDAP: | ||
http://people.redhat.com/ccaulfie/docs/ClusterLDAP.pdf | ||
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Configuration examples are located in /usr/share/doc/gfs-tools/examples/ | ||
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rgmanager error codes are located in /usr/share/doc/rgmanager/errors.txt | ||
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------------ | ||
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It appears that in some hw combinations the kernel is not fast enough to handle | ||
cman heartbeat properly. This results in cman kicking out nodes during heavy I/O | ||
operations. | ||
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The only known workaround is to increase the cman timeout using FOR EXAMPLE: | ||
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echo $timeout_in_seconds > /proc/cluster/config/cman/deadnode_timeout | ||
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The default is 21 seconds. | ||
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It is important to understand that higher values of timeout will expose the cluster | ||
to other problems, like for example a node is not kicked out from the cluster fast | ||
enough and it might cause more damage than expected. | ||
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NOTE that the value must never be higher than the reboot time of the node. Otherwise | ||
the cluster will refuse the node to rejoin the quorum and manual kick has to be done | ||
by the administrator. |
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Building cluster for Debian | ||
--------------------------- | ||
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The cluster source package uses quilt to apply and remove its patches. Please | ||
refer to /usr/share/doc/quilt/README.source for information about how to use | ||
quilt for source packages. |
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Merge cman.init changes from upstream to handle xen. | ||
Review *.init. | ||
check scsi_reserve stuff | ||
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Open packaging issues | ||
-------------------- | ||
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- provide upgrade path from cluster suite 1.03 in etch: | ||
* upgrade document | ||
* cman preinst: on upgrade from 1.0x, bug the user | ||
* debconf template: point the user to the upgrade document, | ||
and let the user proceed at own risk | ||
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- update initscripts to use lsb functions | ||
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- prod upstream to write missing manpages | ||
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W: rgmanager: binary-without-manpage usr/sbin/clunfslock | ||
W: rgmanager: binary-without-manpage usr/sbin/rg_test | ||
W: gnbd-server: binary-without-manpage usr/sbin/gnbd_clusterd | ||
W: gnbd-server: binary-without-manpage usr/sbin/gnbd_get_uid | ||
W: gnbd-client: binary-without-manpage usr/sbin/gnbd_monitor | ||
W: gnbd-client: binary-without-manpage usr/sbin/gnbd_recvd | ||
W: gfs2-tools: binary-without-manpage usr/sbin/gfs2_edit | ||
W: gfs2-tools: binary-without-manpage usr/sbin/gfs2_umount | ||
W: gfs-tools: binary-without-manpage usr/sbin/gfs_debug | ||
W: gfs-tools: binary-without-manpage usr/sbin/gfs_edit | ||
W: cman: binary-without-manpage usr/sbin/fence_baytech | ||
W: cman: binary-without-manpage usr/sbin/fence_cpint | ||
W: cman: binary-without-manpage usr/sbin/fence_ibmblade | ||
W: cman: binary-without-manpage usr/sbin/fence_rackswitch | ||
W: cman: binary-without-manpage usr/sbin/fence_rps10 | ||
W: cman: binary-without-manpage usr/sbin/fence_rsb | ||
W: cman: binary-without-manpage usr/sbin/fence_scsi | ||
W: cman: binary-without-manpage usr/sbin/fence_scsi_test | ||
W: cman: binary-without-manpage usr/sbin/fence_vmware | ||
W: cman: binary-without-manpage usr/sbin/fence_xcat | ||
W: cman: binary-without-manpage usr/sbin/fence_zvm | ||
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