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
