HBASE-6290 Add a function a mark a server as dead and start the recovery the process (Talat Uyarer) DOC ADDENDUM
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@ -704,6 +704,19 @@ Options:
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RegionServer. Avoid any problems by disabling the balancer first. See <xref
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linkend="lb" /> below. </para>
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</note>
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<note>
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<title xml:id="considerAsDead.sh">Kill Node Tool</title>
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<para>In hbase-2.0, in the bin directory, we added a script named
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<filename>considerAsDead.sh</filename> that can be used to kill a regionserver.
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Hardware issues could be detected by specialized monitoring tools before the
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zookeeper timeout has expired. <filename>considerAsDead.sh</filename> is a
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simple function to mark a RegionServer as dead. It deletes all the znodes
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of the server, starting the recovery process. Plug in the script into
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your monitoring/fault detection tools to initiate faster failover. Be
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careful how you use this disruptive tool. Copy the script if you need to
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make use of it in a version of hbase previous to hbase-2.0.
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</para>
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</note>
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<para> A downside to the above stop of a RegionServer is that regions could be offline for a
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good period of time. Regions are closed in order. If many regions on the server, the first
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region to close may not be back online until all regions close and after the master notices
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