Revision 46c8a6ab man/ganeti-watcher.sgml
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<cmdsynopsis> |
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<command>&dhpackage; </command> |
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<arg><option>--debug</option></arg> |
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<arg><option>--job-age=<replaceable>age</replaceable></option></arg> |
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<arg><option>--ignore-pause</option></arg> |
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</cmdsynopsis> |
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</refsynopsisdiv> |
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<refsect1> |
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and another one that runs on every node. |
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</para> |
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<para> |
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If the watcher is disabled at cluster level (via |
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the <command>gnt-cluster watcher pause</command> command), it |
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will exit without doing anything. The cluster-level pause can be |
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overriden via the <option>--ignore-pause</option> option, for |
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example if during a maintenance the watcher needs to be disabled |
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in general, but the administrator wants to run it just once. |
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</para> |
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<para> |
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The <option>--debug</option> option will increase the verbosity |
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of the watcher and also activate logging to the standard error. |
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</para> |
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<refsect2> |
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<title>Master operations</title> |
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|
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</para> |
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<para> |
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Its other function is to <quote>repair</quote> DRBD links by
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Another function is to <quote>repair</quote> DRBD links by
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reactivating the block devices of instances which have |
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secondaries on nodes that have been rebooted. |
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</para> |
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<para> |
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The watcher will also archive old jobs (older than the age |
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given via the <option>--job-age</option> option, which |
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defaults to 6 hours), in order to keep the job queue |
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manageable. |
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</para> |
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</refsect2> |
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<refsect2> |
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<para> |
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The watcher does synchronous queries but will submit jobs for |
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executing the changes. Due to locking, it could be that the jobs |
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execute much later than the watcher executes them.
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execute much later than the watcher submits them.
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</para> |
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</refsect2> |
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