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HDFS-3279. Move the FSEditLog constructor with @VisibleForTesting to TestEditLog. Contributed by Arpit Gupta

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1326762 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Tsz-wo Sze 2012-04-16 19:31:34 +00:00
parent 258da66cc7
commit f1667dee14
3 changed files with 25 additions and 23 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -379,6 +379,9 @@ Release 2.0.0 - UNRELEASED
HDFS-2708. Stats for the # of blocks per DN. (atm)
HDFS-3279. Move the FSEditLog constructor with @VisibleForTesting to
TestEditLog. (Arpit Gupta via szetszwo)
OPTIMIZATIONS
HDFS-3024. Improve performance of stringification in addStoredBlock (todd)

15
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLog.java
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@ -26,7 +26,6 @@
import java.util.Collection;
import java.util.List;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
@ -178,20 +177,6 @@ protected synchronized TransactionId initialValue() {
}
};
/**
* Construct FSEditLog with default configuration, taking editDirs from NNStorage
*
* @param storage Storage object used by namenode
*/
@VisibleForTesting
FSEditLog(NNStorage storage) throws IOException {
Configuration conf = new Configuration();
// Make sure the edits dirs are set in the provided configuration object.
conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY,
StringUtils.join(storage.getEditsDirectories(), ","));
init(conf, storage, FSNamesystem.getNamespaceEditsDirs(conf));
}
/**
* Constructor for FSEditLog. Underlying journals are constructed, but
* no streams are opened until open() is called.

30
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEditLog.java
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@ -141,6 +141,20 @@ public void run() {
}
}
}
/**
* Construct FSEditLog with default configuration, taking editDirs from NNStorage
*
* @param storage Storage object used by namenode
*/
private static FSEditLog getFSEditLog(NNStorage storage) throws IOException {
Configuration conf = new Configuration();
// Make sure the edits dirs are set in the provided configuration object.
conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY,
StringUtils.join(",", storage.getEditsDirectories()));
FSEditLog log = new FSEditLog(conf, storage, FSNamesystem.getNamespaceEditsDirs(conf));
return log;
}
/**
* Test case for an empty edit log from a prior version of Hadoop.
@ -863,7 +877,7 @@ public void testEditLogManifestMocks() throws IOException {
storage = mockStorageWithEdits(
"[1,100]|[101,200]|[201,]",
"[1,100]|[101,200]|[201,]");
log = new FSEditLog(storage);
log = getFSEditLog(storage);
log.initJournalsForWrite();
assertEquals("[[1,100], [101,200]]",
log.getEditLogManifest(1).toString());
@ -875,7 +889,7 @@ public void testEditLogManifestMocks() throws IOException {
storage = mockStorageWithEdits(
"[1,100]|[101,200]",
"[1,100]|[201,300]|[301,400]"); // nothing starting at 101
log = new FSEditLog(storage);
log = getFSEditLog(storage);
log.initJournalsForWrite();
assertEquals("[[1,100], [101,200], [201,300], [301,400]]",
log.getEditLogManifest(1).toString());
@ -885,7 +899,7 @@ public void testEditLogManifestMocks() throws IOException {
storage = mockStorageWithEdits(
"[1,100]|[301,400]", // gap from 101 to 300
"[301,400]|[401,500]");
log = new FSEditLog(storage);
log = getFSEditLog(storage);
log.initJournalsForWrite();
assertEquals("[[301,400], [401,500]]",
log.getEditLogManifest(1).toString());
@ -895,7 +909,7 @@ public void testEditLogManifestMocks() throws IOException {
storage = mockStorageWithEdits(
"[1,100]|[101,150]", // short log at 101
"[1,50]|[101,200]"); // short log at 1
log = new FSEditLog(storage);
log = getFSEditLog(storage);
log.initJournalsForWrite();
assertEquals("[[1,100], [101,200]]",
log.getEditLogManifest(1).toString());
@ -908,7 +922,7 @@ public void testEditLogManifestMocks() throws IOException {
storage = mockStorageWithEdits(
"[1,100]|[101,]",
"[1,100]|[101,200]");
log = new FSEditLog(storage);
log = getFSEditLog(storage);
log.initJournalsForWrite();
assertEquals("[[1,100], [101,200]]",
log.getEditLogManifest(1).toString());
@ -998,7 +1012,7 @@ public static NNStorage setupEdits(List<URI> editUris, int numrolls,
Collections.<URI>emptyList(),
editUris);
storage.format(new NamespaceInfo());
FSEditLog editlog = new FSEditLog(storage);
FSEditLog editlog = getFSEditLog(storage);
// open the edit log and add two transactions
// logGenerationStamp is used, simply because it doesn't
// require complex arguments.
@ -1080,7 +1094,7 @@ public void testAlternatingJournalFailure() throws IOException {
new AbortSpec(9, 0),
new AbortSpec(10, 1));
long totaltxnread = 0;
FSEditLog editlog = new FSEditLog(storage);
FSEditLog editlog = getFSEditLog(storage);
editlog.initJournalsForWrite();
long startTxId = 1;
Iterable<EditLogInputStream> editStreams = editlog.selectInputStreams(startTxId,
@ -1130,7 +1144,7 @@ public boolean accept(File dir, String name) {
assertEquals(1, files.length);
assertTrue(files[0].delete());
FSEditLog editlog = new FSEditLog(storage);
FSEditLog editlog = getFSEditLog(storage);
editlog.initJournalsForWrite();
long startTxId = 1;
try {