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https://bugzilla.redhat.com/show_bug.cgi?id=1251190 So, if domain loses access to storage, sanlock tries to kill it after some timeout. So far, the default is 80 seconds. But for some scenarios this might not be enough. We should allow users to adjust the timeout according to their needs. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
70 lines
2.4 KiB
Plaintext
70 lines
2.4 KiB
Plaintext
#
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# The default sanlock configuration requires the management
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# application to manually define <lease> elements in the
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# guest configuration, typically one lease per disk. An
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# alternative is to enable "auto disk lease" mode. In this
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# usage, libvirt will automatically create a lockspace and
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# lease for each fully qualified disk path. This works if
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# you are able to ensure stable, unique disk paths across
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# all hosts in a network.
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#
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# Uncomment this to enable automatic lease creation.
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#
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# NB: the 'host_id' parameter must be set if enabling this
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#
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#auto_disk_leases = 1
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#
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# The default location in which lockspaces are created when
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# automatic lease creation is enabled. For each unique disk
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# path, a file $LEASE_DIR/NNNNNNNNNNNNNN will be created
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# where 'NNNNNNNNNNNNNN' is the MD5 checkout of the disk path.
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#
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# If this directory is on local storage, it will only protect
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# against a VM being started twice on the same host, or two
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# guests on the same host using the same disk path. If the
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# directory is on NFS, then it can protect against concurrent
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# usage across all hosts which have the share mounted.
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#
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# Recommendation is to just mount this default location as
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# an NFS volume. Uncomment this, if you would prefer the mount
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# point to be somewhere else. Moreover, please make sure
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# sanlock daemon can access the specified path.
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#
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#disk_lease_dir = "/var/lib/libvirt/sanlock"
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#
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# The unique ID for this host.
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#
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# IMPORTANT: *EVERY* host which can access the filesystem mounted
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# at 'disk_lease_dir' *MUST* be given a different host ID.
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#
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# This parameter has no default and must be manually set if
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# 'auto_disk_leases' is enabled
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#host_id = 1
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#
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# Flag to determine whether we allow starting of guests
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# which do not have any <lease> elements defined in their
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# configuration.
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#
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# If 'auto_disk_leases' is disabled, this setting defaults
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# to enabled, otherwise it defaults to disabled.
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#
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#require_lease_for_disks = 1
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#
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# Sanlock is able to kill qemu processes on IO timeout. By its internal
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# implementation, the current default is 80 seconds. If you need to adjust
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# the value change the following variable. Value of zero means use the
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# default sanlock timeout.
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#io_timeout = 0
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#
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# The combination of user and group under which the sanlock
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# daemon runs. Libvirt will chown created files (like
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# content of disk_lease_dir) to make sure sanlock daemon can
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# access them. Accepted values are described in qemu.conf.
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#user = "root"
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#group = "root"
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