Hi, A friend of mine is experiencing region disappearance after a region server crash on HBase 0.20.4. His colleague suspects they met HBASE-2482.
https://issues.apache.org/jira/browse/HBASE-2482 Regions in transition do not get reassigned by master when RS crashes The reason of the region server crash was running out Linux file handles. They will change the configuration (limits.conf) to avoid this to happen again. So, we've got the following questions: 1. Could HBASE-2482 happen on HBase 0.20.4? We think the answer is yes. 2. How can they take the lost regions back? 3. How to prevent HBASE-2482 on 0.20.4? Is it okay to apply the v3 patch against 0.20.4 release? I asked him to put the log files to pastebin. They"ll be ready on Monday. Thanks in advance, -- 河野 達也 Tatsuya Kawano (mr.) Tokyo, Japan twitter: http://twitter.com/tatsuya6502
