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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2011/07/28 17:00:11 UTC
[jira] [Commented] (HBASE-4144) RS doesnot abort if the
initialization of RS fails
[ https://issues.apache.org/jira/browse/HBASE-4144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13072389#comment-13072389 ]
Ted Yu commented on HBASE-4144:
-------------------------------
+1 on patch.
> RS doesnot abort if the initialization of RS fails
> ---------------------------------------------------
>
> Key: HBASE-4144
> URL: https://issues.apache.org/jira/browse/HBASE-4144
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.90.3
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Minor
> Attachments: HBASE-4144_0.90.patch, HBASE-4144_trunk.patch
>
>
> If any exception occurs while initialization of RS the RS doesnot get
> aborted whereas only the RPC server gets stopped.
> private void preRegistrationInitialization()
> throws IOException, InterruptedException {
> try {
> initializeZooKeeper();
> initializeThreads();
> int nbBlocks = conf.getInt("hbase.regionserver.nbreservationblocks",4);
> for (int i = 0; i < nbBlocks; i++) {
> reservedSpace.add(new
> byte[HConstants.DEFAULT_SIZE_RESERVATION_BLOCK]);
> }
> } catch (Throwable t) {
> // Call stop if error or process will stick around for ever since
> server
> // puts up non-daemon threads.
> LOG.error("Stopping HRS because failed initialize", t);
> this.rpcServer.stop();
> }
> }
> So if any exception occurs while initilization the RPC server gets stopped
> but RS process is still running. But the log says stopping HRegionServer.
> So in the below code the catch() block will be executed when the RPCServer
> stop fails?
> In all other cases it doesnt handle any initialization failure.
> try {
> // Do pre-registration initializations; zookeeper, lease threads,tc.
> preRegistrationInitialization();
> } catch (Exception e) {
> abort("Fatal exception during initialization", e);
> }
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