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HDFS-3840. JournalNodes log JournalNotFormattedException backtrace error before being formatted. Contributed by Todd Lipcon. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-3077@1383252 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Todd Lipcon 2012-09-11 06:33:47 +00:00
parent 8a8c9c18d3
commit a93ba1648a
11 changed files with 87 additions and 27 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-3077.txt
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@ -68,3 +68,5 @@ HDFS-3914. QJM: acceptRecovery should abort current segment (todd)
HDFS-3915. QJM: Failover fails with auth error in secure cluster (todd)
HDFS-3906. QJM: quorum timeout on failover with large log segment (todd)
HDFS-3840. JournalNodes log JournalNotFormattedException backtrace error before being formatted (todd)

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/AsyncLogger.java
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@ -90,6 +90,11 @@ public ListenableFuture<Void> finalizeLogSegment(
*/
public ListenableFuture<Void> format(NamespaceInfo nsInfo);
/**
* @return whether or not the remote node has any valid data.
*/
public ListenableFuture<Boolean> isFormatted();
/**
* @return the state of the last epoch on the target node.
*/

24
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/AsyncLoggerSet.java
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@ -216,29 +216,7 @@ public QuorumCall<AsyncLogger, GetJournalStateResponseProto> getJournalState() {
public QuorumCall<AsyncLogger, Boolean> isFormatted() {
Map<AsyncLogger, ListenableFuture<Boolean>> calls = Maps.newHashMap();
for (AsyncLogger logger : loggers) {
final SettableFuture<Boolean> ret = SettableFuture.create();
ListenableFuture<GetJournalStateResponseProto> jstate =
logger.getJournalState();
Futures.addCallback(jstate, new FutureCallback<GetJournalStateResponseProto>() {
@Override
public void onFailure(Throwable t) {
if (t instanceof RemoteException) {
t = ((RemoteException)t).unwrapRemoteException();
}
if (t instanceof JournalNotFormattedException) {
ret.set(false);
} else {
ret.setException(t);
}
}
@Override
public void onSuccess(GetJournalStateResponseProto jstate) {
ret.set(true);
}
});
calls.put(logger, ret);
calls.put(logger, logger.isFormatted());
}
return QuorumCall.create(calls);
}

10
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/IPCLoggerChannel.java
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@ -293,6 +293,16 @@ public void run() {
}
}
@Override
public ListenableFuture<Boolean> isFormatted() {
return executor.submit(new Callable<Boolean>() {
@Override
public Boolean call() throws IOException {
return getProxy().isFormatted(journalId);
}
});
}
@Override
public ListenableFuture<GetJournalStateResponseProto> getJournalState() {
return executor.submit(new Callable<GetJournalStateResponseProto>() {

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/protocol/QJournalProtocol.java
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@ -47,6 +47,12 @@
public interface QJournalProtocol {
public static final long versionID = 1L;
/**
* @return true if the given journal has been formatted and
* contains valid data.
*/
public boolean isFormatted(String journalId) throws IOException;
/**
* Get the current state of the journal, including the most recent
* epoch number and the HTTP port.

18
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/protocolPB/QJournalProtocolServerSideTranslatorPB.java
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@ -32,6 +32,8 @@
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.GetJournalStateResponseProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.HeartbeatRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.HeartbeatResponseProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.IsFormattedRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.IsFormattedResponseProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.JournalIdProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.JournalRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.JournalResponseProto;
@ -67,6 +69,22 @@ public QJournalProtocolServerSideTranslatorPB(QJournalProtocol impl) {
this.impl = impl;
}
@Override
public IsFormattedResponseProto isFormatted(RpcController controller,
IsFormattedRequestProto request) throws ServiceException {
try {
boolean ret = impl.isFormatted(
convert(request.getJid()));
return IsFormattedResponseProto.newBuilder()
.setIsFormatted(ret)
.build();
} catch (IOException ioe) {
throw new ServiceException(ioe);
}
}
@Override
public GetJournalStateResponseProto getJournalState(RpcController controller,
GetJournalStateRequestProto request) throws ServiceException {

16
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/protocolPB/QJournalProtocolTranslatorPB.java
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@ -33,6 +33,8 @@
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.GetJournalStateRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.GetJournalStateResponseProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.HeartbeatRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.IsFormattedRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.IsFormattedResponseProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.JournalIdProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.JournalRequestProto;
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.NewEpochRequestProto;
@ -78,6 +80,20 @@ public void close() {
}
@Override
public boolean isFormatted(String journalId) throws IOException {
try {
IsFormattedRequestProto req = IsFormattedRequestProto.newBuilder()
.setJid(convertJournalId(journalId))
.build();
IsFormattedResponseProto resp = rpcProxy.isFormatted(
NULL_CONTROLLER, req);
return resp.getIsFormatted();
} catch (ServiceException e) {
throw ProtobufHelper.getRemoteException(e);
}
}
@Override
public GetJournalStateResponseProto getJournalState(String jid)
throws IOException {

10
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java
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@ -402,10 +402,14 @@ private synchronized void checkWriteRequest(RequestInfo reqInfo) throws IOExcept
}
}
public synchronized boolean isFormatted() {
return storage.isFormatted();
}
private void checkFormatted() throws JournalNotFormattedException {
if (!storage.isFormatted()) {
throw new JournalNotFormattedException("Journal " + storage +
" not formatted");
if (!isFormatted()) {
throw new JournalNotFormattedException("Journal " +
storage.getSingularStorageDir() + " not formatted");
}
}

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/JournalNodeRpcServer.java
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@ -107,6 +107,11 @@ static InetSocketAddress getAddress(Configuration conf) {
DFSConfigKeys.DFS_JOURNALNODE_RPC_ADDRESS_KEY);
}
@Override
public boolean isFormatted(String journalId) throws IOException {
return jn.getOrCreateJournal(journalId).isFormatted();
}
@Override
public GetJournalStateResponseProto getJournalState(String journalId)
throws IOException {

13
hadoop-hdfs-project/hadoop-hdfs/src/main/proto/QJournalProtocol.proto
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@ -116,6 +116,17 @@ message PurgeLogsRequestProto {
message PurgeLogsResponseProto {
}
/**
* isFormatted()
*/
message IsFormattedRequestProto {
required JournalIdProto jid = 1;
}
message IsFormattedResponseProto {
required bool isFormatted = 1;
}
/**
* getJournalState()
*/
@ -210,6 +221,8 @@ message AcceptRecoveryResponseProto {
* See the request and response for details of rpc call.
*/
service QJournalProtocolService {
rpc isFormatted(IsFormattedRequestProto) returns (IsFormattedResponseProto);
rpc getJournalState(GetJournalStateRequestProto) returns (GetJournalStateResponseProto);
rpc newEpoch(NewEpochRequestProto) returns (NewEpochResponseProto);

3
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournal.java
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@ -156,10 +156,13 @@ public void testFormatResetsCachedValues() throws Exception {
assertEquals(12345L, journal.getLastPromisedEpoch());
assertEquals(12345L, journal.getLastWriterEpoch());
assertTrue(journal.isFormatted());
journal.format(FAKE_NSINFO_2);
assertEquals(0, journal.getLastPromisedEpoch());
assertEquals(0, journal.getLastWriterEpoch());
assertTrue(journal.isFormatted());
}
/**