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From "Stephen Yuan Jiang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13802) Procedure V2: Master fail to come up due to rollback of create namespace table
Date Fri, 29 May 2015 06:00:36 GMT
Stephen Yuan Jiang created HBASE-13802:
------------------------------------------

             Summary: Procedure V2: Master fail to come up due to rollback of create namespace
table
                 Key: HBASE-13802
                 URL: https://issues.apache.org/jira/browse/HBASE-13802
             Project: HBase
          Issue Type: Bug
          Components: master, proc-v2
    Affects Versions: 1.1.0, 2.0.0, 1.2.0
            Reporter: Stephen Yuan Jiang
            Assignee: Stephen Yuan Jiang


In Procedure V2 (HBASE-13203) implementation, Rollback of a CreateTableProcedure would call
the Quota Manager to remove the table from namespace quota.
{code}
protected static void deleteTableStates(final MasterProcedureEnv env, final TableName tableName)
 {
 ProcedureSyncWait.getMasterQuotaManager(env).removeTableFromNamespaceQuota(tableName);
}
{code}

This could lead to a 'deadlock'-like situation during master starting up:
(1) The create namespace table procedure failed in the middle of master crash/failover. When
master re-started, it tried to rollback, one step of rollback is to call QuotaManager to remove
the table from NameSpaceQuota, but the QuotaManager has NOT started - so the rollback has
to wait.
(2). The QuotaManager would start in master after Namespace Manager starts.
(3). The Namespace Manager is waiting for the table lock to be released by rollback of create
namespace table procedure so that it can create namespace table as part of Namespace Manager
initialization.
{code}
HMaster#finishActiveMasterInitialization() {
   ...
   status.setStatus("Starting namespace manager");
   initNamespace();
    ...
   status.setStatus("Starting quota manager");
   initQuotaManager();
   ...
}
{code}
(4). Now (1) waits for (2), which waits for (3), which waits for (1) - no one make progress
& master could not complete initialization and fails to come up.

{noformat}
2015-05-28 10:01:26,890 INFO  [ip-111-22-33-444:16000.activeMasterManager] master.TableNamespaceManager:
Namespace table not found. Creating...
2015-05-28 10:06:22,016 WARN  [ProcedureExecutorThread-0] procedure.CreateTableProcedure:
Failed rollback attempt step=CREATE_TABLE_PRE_OPERATION table=hbase:namespace
org.apache.hadoop.hbase.exceptions.TimeoutIOException: Timed out while waiting on quota manager
to be available
	at org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait.waitFor(ProcedureSyncWait.java:122)
	at org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait.waitFor(ProcedureSyncWait.java:102)
	at org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait.getMasterQuotaManager(ProcedureSyncWait.java:184)
	at org.apache.hadoop.hbase.master.procedure.DeleteTableProcedure.deleteTableStates(DeleteTableProcedure.java:408)
	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.rollbackState(CreateTableProcedure.java:169)
	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.rollbackState(CreateTableProcedure.java:58)
	at org.apache.hadoop.hbase.procedure2.StateMachineProcedure.rollback(StateMachineProcedure.java:121)
	at org.apache.hadoop.hbase.procedure2.Procedure.doRollback(Procedure.java:414)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeRollback(ProcedureExecutor.java:808)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeRollback(ProcedureExecutor.java:773)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execLoop(ProcedureExecutor.java:653)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execLoop(ProcedureExecutor.java:626)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$200(ProcedureExecutor.java:70)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$1.run(ProcedureExecutor.java:413)
2015-05-28 10:06:22,169 WARN  [ProcedureExecutorThread-1] procedure.CreateTableProcedure:
The table hbase:namespace does not exist in meta but has a znode. run hbck to fix inconsistencies.
2015-05-28 10:06:27,292 FATAL [ip-111-22-33-444:16000.activeMasterManager] master.HMaster:
Failed to become active master
java.io.IOException: Timedout 300000ms waiting for namespace table to be assigned
	at org.apache.hadoop.hbase.master.TableNamespaceManager.start(TableNamespaceManager.java:104)
	at org.apache.hadoop.hbase.master.HMaster.initNamespace(HMaster.java:980)
	at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:779)
	at org.apache.hadoop.hbase.master.HMaster.access$500(HMaster.java:182)
	at org.apache.hadoop.hbase.master.HMaster$1.run(HMaster.java:1632)
	at java.lang.Thread.run(Thread.java:745)
2015-05-28 10:06:27,293 FATAL [ip-111-22-33-444:16000.activeMasterManager] master.HMaster:
Master server abort: loaded coprocessors are: [org.apache.ranger.authorization.hbase.RangerAuthorizationCoprocessor]
2015-05-28 10:06:27,293 FATAL [ip-111-22-33-444:16000.activeMasterManager] master.HMaster:
Unhandled exception. Starting shutdown.
java.io.IOException: Timedout 300000ms waiting for namespace table to be assigned
	at org.apache.hadoop.hbase.master.TableNamespaceManager.start(TableNamespaceManager.java:104)
	at org.apache.hadoop.hbase.master.HMaster.initNamespace(HMaster.java:980)
	at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:779)
	at org.apache.hadoop.hbase.master.HMaster.access$500(HMaster.java:182)
	at org.apache.hadoop.hbase.master.HMaster$1.run(HMaster.java:1632)
	at java.lang.Thread.run(Thread.java:745)
{noformat}




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