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HDFS-12407. Journal node fails to shutdown cleanly if JournalNodeHttpServer or JournalNodeRpcServer fails to start. Contributed by Ajay Kumar.

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This commit is contained in:
Arpit Agarwal 2017-09-12 16:18:41 -07:00
parent 82c5dd1d50
commit 68282c8eac
2 changed files with 48 additions and 18 deletions
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45
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java
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@ -157,27 +157,36 @@ public int run(String[] args) throws Exception {
*/
public void start() throws IOException {
Preconditions.checkState(!isStarted(), "JN already running");
validateAndCreateJournalDir(localDir);
DefaultMetricsSystem.initialize("JournalNode");
JvmMetrics.create("JournalNode",
conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY),
DefaultMetricsSystem.instance());
InetSocketAddress socAddr = JournalNodeRpcServer.getAddress(conf);
SecurityUtil.login(conf, DFSConfigKeys.DFS_JOURNALNODE_KEYTAB_FILE_KEY,
DFSConfigKeys.DFS_JOURNALNODE_KERBEROS_PRINCIPAL_KEY, socAddr.getHostName());
registerJNMXBean();
httpServer = new JournalNodeHttpServer(conf, this);
httpServer.start();
try {
httpServerURI = httpServer.getServerURI().toString();
validateAndCreateJournalDir(localDir);
rpcServer = new JournalNodeRpcServer(conf, this);
rpcServer.start();
DefaultMetricsSystem.initialize("JournalNode");
JvmMetrics.create("JournalNode",
conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY),
DefaultMetricsSystem.instance());
InetSocketAddress socAddr = JournalNodeRpcServer.getAddress(conf);
SecurityUtil.login(conf, DFSConfigKeys.DFS_JOURNALNODE_KEYTAB_FILE_KEY,
DFSConfigKeys.DFS_JOURNALNODE_KERBEROS_PRINCIPAL_KEY,
socAddr.getHostName());
registerJNMXBean();
httpServer = new JournalNodeHttpServer(conf, this);
httpServer.start();
httpServerURI = httpServer.getServerURI().toString();
rpcServer = new JournalNodeRpcServer(conf, this);
rpcServer.start();
} catch (IOException ioe) {
//Shutdown JournalNode of JournalNodeRpcServer fails to start
LOG.error("Failed to start JournalNode.", ioe);
this.stop(1);
throw ioe;
}
}
public boolean isStarted() {

21
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournalNode.java
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@ -55,6 +55,7 @@
import com.google.common.base.Charsets;
import com.google.common.primitives.Bytes;
import com.google.common.primitives.Ints;
import org.mockito.Mockito;
public class TestJournalNode {
@ -342,4 +343,24 @@ private void doPerfTest(int editsSize, int numEdits) throws Exception {
System.err.println("Time per batch: " + avgRtt + "ms");
System.err.println("Throughput: " + throughput + " bytes/sec");
}
/**
* Test case to check if JournalNode exits cleanly when httpserver or rpc
* server fails to start. Call to JournalNode start should fail with bind
* exception as the port is in use by the JN started in @Before routine
*/
@Test
public void testJournalNodeStartupFailsCleanly() {
JournalNode jNode = Mockito.spy(new JournalNode());
try {
jNode.setConf(conf);
jNode.start();
fail("Should throw bind exception");
} catch (Exception e) {
GenericTestUtils
.assertExceptionContains("java.net.BindException: Port in use", e);
}
Mockito.verify(jNode).stop(1);
}
}