Grokbase Groups HBase dev May 2010
FAQ
Timeout on region open (to protect against case where a single borked region damages its table and others in the queue to be opened behind the bad one)
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Key: HBASE-2623
URL: https://issues.apache.org/jira/browse/HBASE-2623
Project: HBase
Issue Type: Improvement
Reporter: stack


I witnessed a case last night where a region open got stuck -- it was an idx hbase region running on 0.20.5, seems like this combo doesn't work -- and it prevented our opening other regions behind it. We never recovered. Both the table that had the stuck region and all tables that had regions that were in the queue behind this stuck region were now borked. There was no way out.

Add a timeout on region open. If a region open fails N times, put it aside.

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categorieshbase, hadoop
postedMay 28, '10 at 5:13p
activeMay 28, '10 at 5:13p
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