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HDFS-4004. TestJournalNode#testJournal fails because of test case execution order. Contributed by Chao Shi. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-3077@1393870 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Todd Lipcon 2012-10-04 01:40:12 +00:00
parent 802ccafcd9
commit 10a0eaaf0a
3 changed files with 21 additions and 7 deletions
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11
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/test/GenericTestUtils.java
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@ -25,6 +25,7 @@ import java.util.Random;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.regex.Pattern;
import org.apache.commons.logging.Log;
@ -48,6 +49,8 @@ import com.google.common.collect.Sets;
*/
public abstract class GenericTestUtils {
private static final AtomicInteger sequence = new AtomicInteger();
/**
* Extracts the name of the method where the invocation has happened
* @return String name of the invoking method
@ -55,6 +58,14 @@ public abstract class GenericTestUtils {
public static String getMethodName() {
return Thread.currentThread().getStackTrace()[2].getMethodName();
}
/**
* Generates a process-wide unique sequence number.
* @return an unique sequence number
*/
public static int uniqueSequenceId() {
return sequence.incrementAndGet();
}
/**
* Assert that a given file exists.

2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-3077.txt
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@ -82,3 +82,5 @@ HDFS-3950. QJM: misc TODO cleanup, improved log messages, etc. (todd)
HDFS-3955. QJM: Make acceptRecovery() atomic. (todd)
HDFS-3956. QJM: purge temporary files when no longer within retention period (todd)
HDFS-4004. TestJournalNode#testJournal fails because of test case execution order (Chao Shi via todd)

15
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournalNode.java
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@ -59,12 +59,12 @@ import com.google.common.primitives.Ints;
public class TestJournalNode {
private static final NamespaceInfo FAKE_NSINFO = new NamespaceInfo(
12345, "mycluster", "my-bp", 0L);
private static final String JID = "test-journalid";
private JournalNode jn;
private Journal journal;
private Configuration conf = new Configuration();
private IPCLoggerChannel ch;
private String journalId;
static {
// Avoid an error when we double-initialize JvmMetrics
@ -84,10 +84,11 @@ public class TestJournalNode {
jn = new JournalNode();
jn.setConf(conf);
jn.start();
journal = jn.getOrCreateJournal(JID);
journalId = "test-journalid-" + GenericTestUtils.uniqueSequenceId();
journal = jn.getOrCreateJournal(journalId);
journal.format(FAKE_NSINFO);
ch = new IPCLoggerChannel(conf, FAKE_NSINFO, JID, jn.getBoundIpcAddress());
ch = new IPCLoggerChannel(conf, FAKE_NSINFO, journalId, jn.getBoundIpcAddress());
}
@After
@ -104,7 +105,7 @@ public class TestJournalNode {
MetricsAsserts.assertGauge("CurrentLagTxns", 0L, metrics);
IPCLoggerChannel ch = new IPCLoggerChannel(
conf, FAKE_NSINFO, JID, jn.getBoundIpcAddress());
conf, FAKE_NSINFO, journalId, jn.getBoundIpcAddress());
ch.newEpoch(1).get();
ch.setEpoch(1);
ch.startLogSegment(1).get();
@ -177,7 +178,7 @@ public class TestJournalNode {
// Create some edits on server side
byte[] EDITS_DATA = QJMTestUtil.createTxnData(1, 3);
IPCLoggerChannel ch = new IPCLoggerChannel(
conf, FAKE_NSINFO, JID, jn.getBoundIpcAddress());
conf, FAKE_NSINFO, journalId, jn.getBoundIpcAddress());
ch.newEpoch(1).get();
ch.setEpoch(1);
ch.startLogSegment(1).get();
@ -187,7 +188,7 @@ public class TestJournalNode {
// Attempt to retrieve via HTTP, ensure we get the data back
// including the header we expected
byte[] retrievedViaHttp = DFSTestUtil.urlGetBytes(new URL(urlRoot +
"/getJournal?segmentTxId=1&jid=" + JID));
"/getJournal?segmentTxId=1&jid=" + journalId));
byte[] expected = Bytes.concat(
Ints.toByteArray(HdfsConstants.LAYOUT_VERSION),
EDITS_DATA);
@ -196,7 +197,7 @@ public class TestJournalNode {
// Attempt to fetch a non-existent file, check that we get an
// error status code
URL badUrl = new URL(urlRoot + "/getJournal?segmentTxId=12345&jid=" + JID);
URL badUrl = new URL(urlRoot + "/getJournal?segmentTxId=12345&jid=" + journalId);
HttpURLConnection connection = (HttpURLConnection)badUrl.openConnection();
try {
assertEquals(404, connection.getResponseCode());