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HDFS-4473. Don't create domain socket unless we need it. Contributed by Colin Patrick McCabe. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-347@1443283 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2013-02-07 00:02:12 +00:00
parent dcd27ff778
commit 3d46863e12
4 changed files with 32 additions and 8 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-347.txt
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@ -39,3 +39,5 @@ HDFS-4433. Make TestPeerCache not flaky (Colin Patrick McCabe via todd)
HDFS-4438. TestDomainSocket fails when system umask is set to 0002. (Colin Patrick McCabe via atm)
HDFS-4440. Avoid annoying log message when dfs.domain.socket.path is not set. (Colin Patrick McCabe via atm)
HDFS-4473. Don't create domain socket unless we need it. (Colin Patrick McCabe via atm)

19
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
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@ -559,13 +559,18 @@ public class DataNode extends Configured
new DataXceiverServer(tcpPeerServer, conf, this));
this.threadGroup.setDaemon(true); // auto destroy when empty
DomainPeerServer domainPeerServer =
getDomainPeerServer(conf, streamingAddr.getPort());
if (domainPeerServer != null) {
this.localDataXceiverServer = new Daemon(threadGroup,
new DataXceiverServer(domainPeerServer, conf, this));
LOG.info("Listening on UNIX domain socket: " +
domainPeerServer.getBindPath());
if (conf.getBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_KEY,
DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_DEFAULT) ||
conf.getBoolean(DFSConfigKeys.DFS_CLIENT_DOMAIN_SOCKET_DATA_TRAFFIC,
DFSConfigKeys.DFS_CLIENT_DOMAIN_SOCKET_DATA_TRAFFIC_DEFAULT)) {
DomainPeerServer domainPeerServer =
getDomainPeerServer(conf, streamingAddr.getPort());
if (domainPeerServer != null) {
this.localDataXceiverServer = new Daemon(threadGroup,
new DataXceiverServer(domainPeerServer, conf, this));
LOG.info("Listening on UNIX domain socket: " +
domainPeerServer.getBindPath());
}
}
}

12
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestParallelRead.java
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@ -26,7 +26,17 @@ import org.junit.BeforeClass;
public class TestParallelRead extends TestParallelReadUtil {
@BeforeClass
static public void setupCluster() throws Exception {
setupCluster(DEFAULT_REPLICATION_FACTOR, new HdfsConfiguration());
// This is a test of the normal (TCP) read path. For this reason, we turn
// off both short-circuit local reads and UNIX domain socket data traffic.
HdfsConfiguration conf = new HdfsConfiguration();
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_KEY, false);
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_DOMAIN_SOCKET_DATA_TRAFFIC,
false);
// dfs.domain.socket.path should be ignored because the previous two keys
// were set to false. This is a regression test for HDFS-4473.
conf.set(DFSConfigKeys.DFS_DOMAIN_SOCKET_PATH_KEY, "/will/not/be/created");
setupCluster(DEFAULT_REPLICATION_FACTOR, conf);
}
@AfterClass

7
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestShortCircuitLocalRead.java
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@ -293,6 +293,9 @@ public class TestShortCircuitLocalRead {
Configuration conf = new Configuration();
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_KEY, true);
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_SKIP_CHECKSUM_KEY, false);
conf.set(DFSConfigKeys.DFS_DOMAIN_SOCKET_PATH_KEY,
"/tmp/testSkipWithVerifyChecksum._PORT");
DomainSocket.disableBindPathValidation();
if (simulatedStorage) {
SimulatedFSDataset.setFactory(conf);
}
@ -337,6 +340,8 @@ public class TestShortCircuitLocalRead {
HdfsConfiguration conf = new HdfsConfiguration();
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_KEY, true);
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_SKIP_CHECKSUM_KEY, false);
conf.set(DFSConfigKeys.DFS_DOMAIN_SOCKET_PATH_KEY,
"/tmp/testHandleTruncatedBlockFile._PORT");
conf.set(DFSConfigKeys.DFS_CHECKSUM_TYPE_KEY, "CRC32C");
final Path TEST_PATH = new Path("/a");
final Path TEST_PATH2 = new Path("/b");
@ -432,6 +437,8 @@ public class TestShortCircuitLocalRead {
// Setup create a file
Configuration conf = new Configuration();
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_KEY, shortcircuit);
conf.set(DFSConfigKeys.DFS_DOMAIN_SOCKET_PATH_KEY,
"/tmp/TestShortCircuitLocalRead._PORT");
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_READ_SHORTCIRCUIT_SKIP_CHECKSUM_KEY,
checksum);