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HBASE-3290 Regionserver can close during a split causing double assignment -- addendum 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1042073 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2010-12-04 00:47:23 +00:00
parent 1da8a78ff9
commit b7a9bdf0b4
1 changed files with 20 additions and 10 deletions
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30
src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
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@ -1033,19 +1033,21 @@ public class AssignmentManager extends ZooKeeperListener {
}
try {
// TODO: We should consider making this look more like it does for the
// region open where we catch all throwables and never abort
if(serverManager.sendRegionClose(server, state.getRegion())) {
// region open where we catch all throwables and never abort
if (serverManager.sendRegionClose(server, state.getRegion())) {
LOG.debug("Sent CLOSE to " + server + " for region " +
region.getRegionNameAsString());
region.getRegionNameAsString());
return;
}
LOG.debug("Server " + server + " region CLOSE RPC returned false");
} catch (NotServingRegionException nsre) {
// Failed to close, so pass through and reassign
LOG.info("Server " + server + " returned " + nsre);
LOG.info("Server " + server + " returned " + nsre + " for " +
region.getEncodedName());
} catch (ConnectException e) {
// Failed to connect, so pass through and reassign
LOG.info("Server " + server + " returned " + e.getMessage());
LOG.info("Server " + server + " returned " + e.getMessage() + " for " +
region.getEncodedName());
} catch (java.net.SocketTimeoutException e) {
// Failed to connect, so pass through and reassign
LOG.info("Server " + server + " returned " + e.getMessage());
@ -1055,21 +1057,29 @@ public class AssignmentManager extends ZooKeeperListener {
LOG.debug("Server " + server + " returned NotServingRegionException");
} else {
this.master.abort("Remote unexpected exception",
re.unwrapRemoteException());
re.unwrapRemoteException());
}
} catch (Throwable t) {
// For now call abort if unexpected exception -- radical, but will get fellas attention.
// St.Ack 20101012
// For now call abort if unexpected exception -- radical, but will get
// fellas attention. St.Ack 20101012
this.master.abort("Remote unexpected exception", t);
}
/* This looks way wrong at least for the case where close failed because
* it was being concurrently split. It also looks wrong for case where
* we cannot connect to remote server. In that case, let the server
* expiration do the fixup. I'm leaving this code here commented out for
* the moment in case I've missed something and this code is actually needed.
* St.Ack 12/04/2010.
*
// Did not CLOSE, so set region offline and assign it
LOG.debug("Attempted to send CLOSE to " + server +
" for region " + region.getRegionNameAsString() + " but failed, " +
"setting region as OFFLINE and reassigning");
" for region " + region.getRegionNameAsString() + " but failed, " +
"setting region as OFFLINE and reassigning");
synchronized (regionsInTransition) {
forceRegionStateToOffline(region);
}
assign(region, true);
*/
}
/**