[jira] [Created] (HBASE-16056) Procedure v2 - fix master crash for FileNotFound

["Matteo Bertozzi (JIRA)" <ji...@apache.org>]

Matteo Bertozzi created HBASE-16056:
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             Summary: Procedure v2 - fix master crash for FileNotFound
                 Key: HBASE-16056
                 URL: https://issues.apache.org/jira/browse/HBASE-16056
             Project: HBase
          Issue Type: Sub-task
          Components: proc-v2
    Affects Versions: 1.1.5, 1.2.1, 2.0.0, 1.3.0
            Reporter: Matteo Bertozzi
            Assignee: Matteo Bertozzi
            Priority: Minor
             Fix For: 2.0.0, 1.3.0, 1.2.2, 1.1.6


[~syuanjiang] and [~tedyu] reported a backup master not able to start with FileNotFound during proc-v2 lease recovery. (another restart should have solved the problem)
{noformat}
FileNotFoundException: File does not exist: /hbase/MasterProcWALs/state-000001.log
namenode.INodeFile.valueOf(INodeFile.java:61) at 
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLease(FSNamesystem.java:2877) at 
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.recoverLease(NameNodeRpcServer.java:753) at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.recoverLease(ClientNamenodeProtocolServerSideTranslatorPB.java:671) 
{noformat}
this may happen when the other master is still active (e.g. GC) and tries to remove files while the other master tries to become active. This operation is retryable so the code should able to handle that.   



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