yuemeng created FLINK-20935:
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Summary: can't write flink configuration to tmp file and add it to local resource in yarn session mode
Key: FLINK-20935
URL:
https://issues.apache.org/jira/browse/FLINK-20935 Project: Flink
Issue Type: Bug
Components: Deployment / YARN
Affects Versions: 1.12.0, 1.13.0
Reporter: yuemeng
In flink 1.12.0 or lastest version,when we execute command such as bin/yarn-session.sh -n 20 -jm 9096 -nm 4096 -st,the depoy will be failed with follow errors:
{code}
org.apache.flink.client.deployment.ClusterDeploymentException: Couldn't deploy Yarn session cluster
at org.apache.flink.yarn.YarnClusterDescriptor.deploySessionCluster(YarnClusterDescriptor.java:411)
at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:498)
at org.apache.flink.yarn.cli.FlinkYarnSessionCli.lambda$main$4(FlinkYarnSessionCli.java:730)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1754)
at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:730)
Caused by: java.io.FileNotFoundException: File does not exist: /tmp/application_1573723355201_0036-flink-conf.yaml688141408443326132.tmp
at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1309)
{code}
when we called startAppMaster method in YarnClusterDescriptor,it will be try to write flink configuration to tmp file and add it to local resource. but the follow code will make the tmp file system as a distribute file system
{code}
// Upload the flink configuration
// write out configuration file
File tmpConfigurationFile = null;
try {
tmpConfigurationFile = File.createTempFile(appId + "-flink-conf.yaml", null);
BootstrapTools.writeConfiguration(configuration, tmpConfigurationFile);
String flinkConfigKey = "flink-conf.yaml";
fileUploader.registerSingleLocalResource(
flinkConfigKey,
new Path(tmpConfigurationFile.getAbsolutePath()),
"",
LocalResourceType.FILE,
true,
true);
classPathBuilder.append("flink-conf.yaml").append(File.pathSeparator);
} finally {
if (tmpConfigurationFile != null && !tmpConfigurationFile.delete()) {
LOG.warn("Fail to delete temporary file {}.", tmpConfigurationFile.toPath());
}
}
{code}
{code} tmpConfigurationFile.getAbsolutePath() {code} method will be return a path without file schema and the file system will be considered as a distribute file system
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