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HBASE-4452 Possibility of RS opening a region though tickleOpening fails due to 

znode version mismatch (Ramkrishna)


git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1174447 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Zhihong Yu 2011-09-22 23:08:17 +00:00
parent a6249ee3b4
commit 1bd5e4032c
2 changed files with 7 additions and 3 deletions
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2
CHANGES.txt
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@ -291,6 +291,8 @@ Release 0.91.0 - Unreleased
HBASE-3421 Very wide rows -- 30M plus -- cause us OOME (Nate Putnam)
HBASE-4153 Handle RegionAlreadyInTransitionException in AssignmentManager
(Ramkrishna)
HBASE-4452 Possibility of RS opening a region though tickleOpening fails due to
znode version mismatch (Ramkrishna)
TESTS
HBASE-4450 test for number of blocks read: to serve as baseline for expected

8
src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java
View File

@ -169,13 +169,14 @@ public class OpenRegionHandler extends EventHandler {
// regions-in-transition timeout period.
long period = Math.max(1, assignmentTimeout/ 3);
long lastUpdate = now;
boolean tickleOpening = true;
while (!signaller.get() && t.isAlive() && !this.server.isStopped() &&
!this.rsServices.isStopping() && (endTime > now)) {
long elapsed = now - lastUpdate;
if (elapsed > period) {
// Only tickle OPENING if postOpenDeployTasks is taking some time.
lastUpdate = now;
tickleOpening("post_open_deploy");
tickleOpening = tickleOpening("post_open_deploy");
}
synchronized (signaller) {
try {
@ -204,8 +205,9 @@ public class OpenRegionHandler extends EventHandler {
}
// Was there an exception opening the region? This should trigger on
// InterruptedException too. If so, we failed.
return !Thread.interrupted() && t.getException() == null;
// InterruptedException too. If so, we failed. Even if tickle opening fails
// then it is a failure.
return ((!Thread.interrupted() && t.getException() == null) && tickleOpening);
}
/**