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YARN-7595. Container launching code suppresses close exceptions after writes. Contributed by Jim Brennan

This commit is contained in:
Jason Lowe 2017-12-15 15:54:56 -06:00
parent 9ae8d1a8de
commit 0f8de8cd91
2 changed files with 30 additions and 44 deletions
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24
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/DefaultContainerExecutor.java
View File

@ -42,7 +42,6 @@ import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.UnsupportedFileSystemException;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.util.Shell;
import org.apache.hadoop.util.Shell.CommandExecutor;
import org.apache.hadoop.util.Shell.ExitCodeException;
@ -414,15 +413,11 @@ public class DefaultContainerExecutor extends ContainerExecutor {
*/
public void writeLocalWrapperScript(Path launchDst, Path pidFile)
throws IOException {
DataOutputStream out = null;
PrintStream pout = null;
try {
out = lfs.create(wrapperScriptPath, EnumSet.of(CREATE, OVERWRITE));
pout = new PrintStream(out, false, "UTF-8");
try (DataOutputStream out =
lfs.create(wrapperScriptPath, EnumSet.of(CREATE, OVERWRITE));
PrintStream pout =
new PrintStream(out, false, "UTF-8")) {
writeLocalWrapperScript(launchDst, pidFile, pout);
} finally {
IOUtils.cleanupWithLogger(LOG, pout, out);
}
}
@ -489,11 +484,10 @@ public class DefaultContainerExecutor extends ContainerExecutor {
private void writeSessionScript(Path launchDst, Path pidFile)
throws IOException {
DataOutputStream out = null;
PrintStream pout = null;
try {
out = lfs.create(sessionScriptPath, EnumSet.of(CREATE, OVERWRITE));
pout = new PrintStream(out, false, "UTF-8");
try (DataOutputStream out =
lfs.create(sessionScriptPath, EnumSet.of(CREATE, OVERWRITE));
PrintStream pout =
new PrintStream(out, false, "UTF-8")) {
// We need to do a move as writing to a file is not atomic
// Process reading a file being written to may get garbled data
// hence write pid to tmp file first followed by a mv
@ -503,8 +497,6 @@ public class DefaultContainerExecutor extends ContainerExecutor {
pout.println("/bin/mv -f " + pidFile.toString() + ".tmp " + pidFile);
String exec = Shell.isSetsidAvailable? "exec setsid" : "exec";
pout.printf("%s /bin/bash \"%s\"", exec, launchDst.toUri().getPath());
} finally {
IOUtils.cleanupWithLogger(LOG, pout, out);
}
lfs.setPermission(sessionScriptPath,
ContainerExecutor.TASK_LAUNCH_SCRIPT_PERMISSION);

50
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/ContainerLaunch.java
View File

@ -219,8 +219,6 @@ public class ContainerLaunch implements Callable<Integer> {
containerIdStr));
Path nmPrivateClasspathJarDir = dirsHandler.getLocalPathForWrite(
getContainerPrivateDir(appIdStr, containerIdStr));
DataOutputStream containerScriptOutStream = null;
DataOutputStream tokensOutStream = null;
// Select the working directory for the container
Path containerWorkDir =
@ -249,25 +247,24 @@ public class ContainerLaunch implements Callable<Integer> {
+ dirsHandler.getDisksHealthReport(false));
}
try {
// /////////// Write out the container-script in the nmPrivate space.
List<Path> appDirs = new ArrayList<Path>(localDirs.size());
List<Path> appDirs = new ArrayList<Path>(localDirs.size());
for (String localDir : localDirs) {
Path usersdir = new Path(localDir, ContainerLocalizer.USERCACHE);
Path userdir = new Path(usersdir, user);
Path appsdir = new Path(userdir, ContainerLocalizer.APPCACHE);
appDirs.add(new Path(appsdir, appIdStr));
}
containerScriptOutStream =
lfs.create(nmPrivateContainerScriptPath,
EnumSet.of(CREATE, OVERWRITE));
for (String localDir : localDirs) {
Path usersdir = new Path(localDir, ContainerLocalizer.USERCACHE);
Path userdir = new Path(usersdir, user);
Path appsdir = new Path(userdir, ContainerLocalizer.APPCACHE);
appDirs.add(new Path(appsdir, appIdStr));
}
// Set the token location too.
environment.put(
ApplicationConstants.CONTAINER_TOKEN_FILE_ENV_NAME,
new Path(containerWorkDir,
FINAL_CONTAINER_TOKENS_FILE).toUri().getPath());
// Set the token location too.
environment.put(
ApplicationConstants.CONTAINER_TOKEN_FILE_ENV_NAME,
new Path(containerWorkDir,
FINAL_CONTAINER_TOKENS_FILE).toUri().getPath());
// /////////// Write out the container-script in the nmPrivate space.
try (DataOutputStream containerScriptOutStream =
lfs.create(nmPrivateContainerScriptPath,
EnumSet.of(CREATE, OVERWRITE))) {
// Sanitize the container's environment
sanitizeEnv(environment, containerWorkDir, appDirs, userLocalDirs,
containerLogDirs,
@ -277,19 +274,16 @@ public class ContainerLaunch implements Callable<Integer> {
exec.writeLaunchEnv(containerScriptOutStream, environment,
localResources, launchContext.getCommands(),
new Path(containerLogDirs.get(0)), user);
}
// /////////// End of writing out container-script
// /////////// End of writing out container-script
// /////////// Write out the container-tokens in the nmPrivate space.
tokensOutStream =
lfs.create(nmPrivateTokensPath, EnumSet.of(CREATE, OVERWRITE));
// /////////// Write out the container-tokens in the nmPrivate space.
try (DataOutputStream tokensOutStream =
lfs.create(nmPrivateTokensPath, EnumSet.of(CREATE, OVERWRITE))) {
Credentials creds = container.getCredentials();
creds.writeTokenStorageToStream(tokensOutStream);
// /////////// End of writing out container-tokens
} finally {
IOUtils.cleanupWithLogger(LOG, containerScriptOutStream,
tokensOutStream);
}
// /////////// End of writing out container-tokens
ret = launchContainer(new ContainerStartContext.Builder()
.setContainer(container)