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HBASE-6713 Stopping META/ROOT RS may take 50mins when some region is splitting (Chunhui) 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1382164 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Zhihong Yu 2012-09-07 20:36:01 +00:00
parent 2845bf5587
commit 2c270de896
1 changed files with 29 additions and 5 deletions
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34
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
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@ -932,17 +932,29 @@ public class HRegionServer implements ClientProtocol,
// Just skip out w/o closing regions. Used when testing.
} else if (abortRequested) {
if (this.fsOk) {
closeAllRegions(abortRequested); // Don't leave any open file handles
closeUserRegions(abortRequested); // Don't leave any open file handles
}
LOG.info("aborting server " + this.serverNameFromMasterPOV);
} else {
closeAllRegions(abortRequested);
closeUserRegions(abortRequested);
closeAllScanners();
LOG.info("stopping server " + this.serverNameFromMasterPOV);
}
// Interrupt catalog tracker here in case any regions being opened out in
// handlers are stuck waiting on meta or root.
if (this.catalogTracker != null) this.catalogTracker.stop();
// Closing the compactSplit thread before closing meta regions
if (!this.killed && containsMetaTableRegions()) {
if (!abortRequested || this.fsOk) {
if (this.compactSplitThread != null) {
this.compactSplitThread.join();
this.compactSplitThread = null;
}
closeMetaTableRegions(abortRequested);
}
}
if (!this.killed && this.fsOk) {
waitOnAllRegionsToClose(abortRequested);
LOG.info("stopping server " + this.serverNameFromMasterPOV +
@ -980,11 +992,16 @@ public class HRegionServer implements ClientProtocol,
LOG.info(Thread.currentThread().getName() + " exiting");
}
private boolean containsMetaTableRegions() {
return onlineRegions.containsKey(HRegionInfo.ROOT_REGIONINFO.getEncodedName())
|| onlineRegions.containsKey(HRegionInfo.FIRST_META_REGIONINFO.getEncodedName());
}
private boolean areAllUserRegionsOffline() {
if (getNumberOfOnlineRegions() > 2) return false;
boolean allUserRegionsOffline = true;
for (Map.Entry<String, HRegion> e: this.onlineRegions.entrySet()) {
if (!e.getValue().getRegionInfo().isMetaRegion()) {
if (!e.getValue().getRegionInfo().isMetaTable()) {
allUserRegionsOffline = false;
break;
}
@ -2011,7 +2028,14 @@ public class HRegionServer implements ClientProtocol,
*/
protected void closeAllRegions(final boolean abort) {
closeUserRegions(abort);
// Only root and meta should remain. Are we carrying root or meta?
closeMetaTableRegions(abort);
}
/**
* Close root and meta regions if we carry them
* @param abort Whether we're running an abort.
*/
void closeMetaTableRegions(final boolean abort) {
HRegion meta = null;
HRegion root = null;
this.lock.writeLock().lock();
@ -2043,7 +2067,7 @@ public class HRegionServer implements ClientProtocol,
try {
for (Map.Entry<String, HRegion> e: this.onlineRegions.entrySet()) {
HRegion r = e.getValue();
if (!r.getRegionInfo().isMetaRegion() && r.isAvailable()) {
if (!r.getRegionInfo().isMetaTable() && r.isAvailable()) {
// Don't update zk with this close transition; pass false.
closeRegion(r.getRegionInfo(), abort, false);
}