[
https://issues.apache.org/jira/browse/GOBBLIN-846?focusedWorklogId=292190&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-292190
]
ASF GitHub Bot logged work on GOBBLIN-846:
------------------------------------------
Author: ASF GitHub Bot
Created on: 09/Aug/19 17:58
Start Date: 09/Aug/19 17:58
Worklog Time Spent: 10m
Work Description: sv2000 commented on pull request #2701: GOBBLIN-846:
Enhance LogCopier service to handle continuous YARN log …
URL: https://github.com/apache/incubator-gobblin/pull/2701#discussion_r312589329
##########
File path:
gobblin-yarn/src/main/java/org/apache/gobblin/yarn/GobblinYarnLogSource.java
##########
@@ -69,21 +78,31 @@ protected boolean isLogSourcePresent() {
protected LogCopier buildLogCopier(Config config, ContainerId containerId,
FileSystem destFs, Path appWorkDir)
throws IOException {
LogCopier.Builder builder = LogCopier.newBuilder()
- .useSrcFileSystem(FileSystem.getLocal(new Configuration()))
- .useDestFileSystem(destFs)
+ .useSrcFileSystem(buildFileSystem(config, true))
+ .useDestFileSystem(buildFileSystem(config, false))
.readFrom(getLocalLogDirs())
.writeTo(getHdfsLogDir(containerId, destFs, appWorkDir))
-
.acceptsLogFileExtensions(ImmutableSet.of(ApplicationConstants.STDOUT,
ApplicationConstants.STDERR))
- .useLogFileNamePrefix(containerId.toString());
- if (config.hasPath(GobblinYarnConfigurationKeys.LOG_COPIER_MAX_FILE_SIZE))
{
-
builder.useMaxBytesPerLogFile(config.getBytes(GobblinYarnConfigurationKeys.LOG_COPIER_MAX_FILE_SIZE));
- }
- if (config.hasPath(GobblinYarnConfigurationKeys.LOG_COPIER_SCHEDULER)) {
-
builder.useScheduler(config.getString(GobblinYarnConfigurationKeys.LOG_COPIER_SCHEDULER));
- }
+
.useCurrentLogFileName(Files.getNameWithoutExtension(System.getProperty(GobblinYarnConfigurationKeys.GOBBLIN_YARN_CONTAINER_LOG_FILE_NAME)));
+
+
builder.acceptsLogFileExtensions(config.hasPath(GobblinYarnConfigurationKeys.LOG_FILE_EXTENSIONS)
? ImmutableSet
+
.copyOf(Splitter.on(",").splitToList(config.getString(GobblinYarnConfigurationKeys.LOG_FILE_EXTENSIONS)))
+ : ImmutableSet.of());
+
return builder.build();
}
+ /**
+ * Return a new (non-cached) {@link FileSystem} instance. The {@link
FileSystem} instance
+ * returned by the method has automatic closing disabled. The user of the
instance needs to handle closing of the
+ * instance, typically as part of its shutdown sequence.
+ */
+ private FileSystem buildFileSystem(Config config, boolean isLocal) throws
IOException {
+ return isLocal ? FileSystem.newInstanceLocal(AUTO_CLOSE_CONFIG)
Review comment:
Yeah. What happens is that each FileSystem instance is configured with a
Shutdown hook that invokes close() when a SIGTERM is issued. If the application
has a shutdown sequence that depends on the instance being available (as in our
case), we run into FileSystem object already Closed exception.
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Issue Time Tracking
-------------------
Worklog Id: (was: 292190)
Time Spent: 1h 40m (was: 1.5h)
> Enhance LogCopier service to handle continuous YARN log aggregation
> -------------------------------------------------------------------
>
> Key: GOBBLIN-846
> URL: https://issues.apache.org/jira/browse/GOBBLIN-846
> Project: Apache Gobblin
> Issue Type: Improvement
> Components: gobblin-yarn
> Affects Versions: 0.15.0
> Reporter: Sudarshan Vasudevan
> Assignee: Abhishek Tiwari
> Priority: Major
> Fix For: 0.15.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> This task enhances LogCopier service to perform continuous log aggregation
> for long-running Gobblin-on-Yarn applications. It periodically copies rolled
> container logs to a specified location on HDFS. The "current" log file is
> copied in the end as part of the service shutdown sequence.
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