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From Brian Jeltema <brian.jelt...@digitalenvoy.net>
Subject periodicFlusher get stuck
Date Tue, 24 Feb 2015 16:15:48 GMT
I’m seeing occasional HBase log output similar to the output shown below.
It appears there is a request to flush a region, repeated every 10 seconds, that apparently
is never being performed. It’s causing MR jobs to
timeout because they cannot write to this region. Is this a known problem? 

hbase version 0.98.0.2.1.2.1-471-hadoop2
hadoop version 2.4.0.2.1.2.1-471


2015-02-23 14:51:47,612 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1415044750009.6ec50faa43a312cd6465d991e5984ec6.
after a delay of 13758
2015-02-23 14:51:57,611 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1415044750009.6ec50faa43a312cd6465d991e5984ec6.
after a delay of 18080
2015-02-23 14:52:07,611 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1415044750009.6ec50faa43a312cd6465d991e5984ec6.
after a delay of 17701
2015-02-23 14:52:17,612 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1415044750009.6ec50faa43a312cd6465d991e5984ec6.
after a delay of 19090
2015-02-23 14:52:27,616 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1415044750009.6ec50faa43a312cd6465d991e5984ec6.
after a delay of 4042
2015-02-23 14:52:37,615 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1415044750009.6ec50faa43a312cd6465d991e5984ec6.
after a delay of 12968
2015-02-23 18:12:03,307 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1424724136146.48d4d3fa0e02a97a8a1d9b85d5cf0162.
after a delay of 10482
2015-02-23 18:12:13,308 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1424724136146.48d4d3fa0e02a97a8a1d9b85d5cf0162.
after a delay of 14829
2015-02-23 19:15:13,330 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1424724136146.48d4d3fa0e02a97a8a1d9b85d5cf0162.
after a delay of 22888
2015-02-23 19:15:23,329 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1424724136146.48d4d3fa0e02a97a8a1d9b85d5cf0162.
after a delay of 21081
2015-02-23 19:15:33,329 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1424724136146.48d4d3fa0e02a97a8a1d9b85d5cf0162.
after a delay of 6387
2015-02-23 20:50:23,368 INFO  [regionserver60020.periodicFlusher] regionserver.HRegionServer:
regionserver60020.periodicFlusher requesting flush for region Host,\x00_m\xB8\x06,1424724136146.48d4d3fa0e02a97a8a1d9b85d5cf0162.
after a delay of 8828


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