Return-Path: 
 <dev-return-50701-apmail-hbase-dev-archive=hbase.apache.org@hbase.apache.org>
X-Original-To: apmail-hbase-dev-archive@www.apache.org
Delivered-To: apmail-hbase-dev-archive@www.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id 6768617937
	for <apmail-hbase-dev-archive@www.apache.org>;
 Mon, 16 Mar 2015 21:23:41 +0000 (UTC)
Received: (qmail 46841 invoked by uid 500); 16 Mar 2015 21:23:40 -0000
Delivered-To: apmail-hbase-dev-archive@hbase.apache.org
Received: (qmail 46756 invoked by uid 500); 16 Mar 2015 21:23:40 -0000
Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:dev-help@hbase.apache.org>
List-Unsubscribe: <mailto:dev-unsubscribe@hbase.apache.org>
List-Post: <mailto:dev@hbase.apache.org>
List-Id: <dev.hbase.apache.org>
Reply-To: dev@hbase.apache.org
Delivered-To: mailing list dev@hbase.apache.org
Received: (qmail 46743 invoked by uid 99); 16 Mar 2015 21:23:40 -0000
Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 16 Mar 2015 21:23:40 +0000
Date: Mon, 16 Mar 2015 21:23:40 +0000 (UTC)
From: "Stephen Yuan Jiang (JIRA)" <jira@apache.org>
To: dev@hbase.apache.org
Message-ID: <JIRA.12782368.1426541008000.109579.1426541020516@Atlassian.JIRA>
In-Reply-To: <JIRA.12782368.1426541008000@Atlassian.JIRA>
References: <JIRA.12782368.1426541008000@Atlassian.JIRA>
 <JIRA.12782368.1426541008589@arcas>
Subject: [jira] [Created] (HBASE-13254) EnableTableHandler#prepare would not
 throw TableNotFoundException during recovery
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394

Stephen Yuan Jiang created HBASE-13254:
------------------------------------------

             Summary: EnableTableHandler#prepare would not throw TableNotFoundException during recovery
                 Key: HBASE-13254
                 URL: https://issues.apache.org/jira/browse/HBASE-13254
             Project: HBase
          Issue Type: Bug
            Reporter: Stephen Yuan Jiang
            Assignee: Stephen Yuan Jiang
            Priority: Minor


During recovery, when EnableTableHandler#prepare() is called, If the table does not exist, it marks the table as deleted and does NOT throw TableNotFoundException.  The result is that the table lock is released and the caller has no knowledge that the table not exist or already deleted, it would continue the next step.

{code}
  public EnableTableHandler prepare()
      throws TableNotFoundException, TableNotDisabledException, IOException {
   ...
    try {
      // Check if table exists
      if (!MetaTableAccessor.tableExists(this.server.getConnection(), tableName)) {
        // retainAssignment is true only during recovery.  In normal case it is false
        if (!this.skipTableStateCheck) {
          throw new TableNotFoundException(tableName);
        }
         this.assignmentManager.getTableStateManager().setDeletedTable(tableName);
      }
   ...
  }
{code}

However,look at the recovery code that calls the EnableTableHandler#prepare function, AssignmentManager#recoverTableInEnablingState() expects TableNotFoundException so that it can skip the table.

{code}
  private void recoverTableInEnablingState()
          throws KeeperException, IOException {
    Set<TableName> enablingTables = tableStateManager.
            getTablesInStates(TableState.State.ENABLING);
    if (enablingTables.size() != 0) {
      for (TableName tableName : enablingTables) {
        // Recover by calling EnableTableHandler
        LOG.info("The table " + tableName
            + " is in ENABLING state.  Hence recovering by moving the table"
            + " to ENABLED state.");
        // enableTable in sync way during master startup,
        // no need to invoke coprocessor
        EnableTableHandler eth = new EnableTableHandler(this.server, tableName,
          this, tableLockManager, true);
        try {
          eth.prepare();
        } catch (TableNotFoundException e) {
          LOG.warn("Table " + tableName + " not found in hbase:meta to recover.");
          continue;
        }
        eth.process();
      }
    }
  }
{code}

The proposed fix is always throw TableNotFoundException in EnableTableHandler#prepare if the table does not exist.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)