Which version? Prior to HBase 0.89 + Hadoop 0.20-append (or cdh3), HBase cannot guarantee durability of the latest inserts (this includes edits to .META.)
J-D On Fri, Aug 13, 2010 at 2:45 PM, Jeremy Carroll <[email protected]> wrote: > During some testing of a small development cluster, one of the RegionServers > that we employ has an issue with a bad RAM stick. So when it gets into heavy > RAM operation it likes to crash. Here is my question. We had an issue where > the RegionServer holding .META. crashed. The entire cluster was unusable as > it did not reassign .META. to a different region. Also when the server goes > down, what happens to all the regions that it held? Does it reassign them to > other region servers? Also what is the correct action for recovery. It > crashed during a major_compaction so how do I verify that I am not missing > data? I see that I had 166 regions online on this server before the crash, > and now after the crash it has 158. What's the correct steps to recover HBase > after a major crash?
