Thank you for your fast answer 🙂 Here is a piece from logs: handler.OpenRegionHandler: Failed open of region=tsdb,\x00\x02OX\xB2`\xD0\x00\x00\x01\x00\x97D\x00\x00\x03\x00\x00_\x00\x00\x04\x00\x004,1489718792446.a38ea9c28bd1a11574e831668d80c19f., starting to roll back the global memstore size. org.apache.hadoop.hbase.DoNotRetryIOException: Compression algorithm 'snappy' previously failed test. at org.apache.hadoop.hbase.util.CompressionTest.testCompression(CompressionTest.java:91) at org.apache.hadoop.hbase.regionserver.HRegion.checkCompressionCodecs(HRegion.java:6560) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6512) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6479) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6450) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6406) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6357) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:362) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:129) at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:129) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) ... View more