Dongjoon Hyun created HADOOP-17258:
--------------------------------------
Summary: MagicS3GuardCommitter fails with `pendingset` already
exists
Key: HADOOP-17258
URL: https://issues.apache.org/jira/browse/HADOOP-17258
Project: Hadoop Common
Issue Type: Bug
Components: fs/s3
Affects Versions: 3.2.0
Reporter: Dongjoon Hyun
`MagicS3GuardCommitter.innerCommitTask` has `false` at `pendingSet.save`.
{code}
try {
pendingSet.save(getDestFS(), taskOutcomePath, false);
} catch (IOException e) {
LOG.warn("Failed to save task commit data to {} ",
taskOutcomePath, e);
abortPendingUploads(context, pendingSet.getCommits(), true);
throw e;
}
{code}
And, it can cause a job failure like the following.
{code}
WARN TaskSetManager: Lost task 1562.1 in stage 1.0 (TID 1788, 100.92.11.63,
executor 26): org.apache.spark.SparkException: Task failed while writing rows.
at
org.apache.spark.sql.execution.datasources.FileFormatWriter$.org$apache$spark$sql$execution$datasources$FileFormatWriter$$executeTask(FileFormatWriter.scala:257)
at
org.apache.spark.sql.execution.datasources.FileFormatWriter$$anonfun$write$1.apply(FileFormatWriter.scala:170)
at
org.apache.spark.sql.execution.datasources.FileFormatWriter$$anonfun$write$1.apply(FileFormatWriter.scala:169)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
at org.apache.spark.scheduler.Task.run(Task.scala:123)
at
org.apache.spark.executor.Executor$TaskRunner$$anonfun$10.apply(Executor.scala:408)
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1360)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:414)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown
Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.hadoop.fs.FileAlreadyExistsException:
s3a://test-bucket-813987666268/dongjoon/t/__magic/app-attempt-0000/task_20200911063607_0001_m_001562.pendingset
already exists
at org.apache.hadoop.fs.s3a.S3AFileSystem.create(S3AFileSystem.java:761)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1118)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1098)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:987)
at org.apache.hadoop.util.JsonSerialization.save(JsonSerialization.java:269)
at
org.apache.hadoop.fs.s3a.commit.files.PendingSet.save(PendingSet.java:170)
at
org.apache.hadoop.fs.s3a.commit.magic.MagicS3GuardCommitter.innerCommitTask(MagicS3GuardCommitter.java:220)
at
org.apache.hadoop.fs.s3a.commit.magic.MagicS3GuardCommitter.commitTask(MagicS3GuardCommitter.java:165)
at
org.apache.spark.mapred.SparkHadoopMapRedUtil$.performCommit$1(SparkHadoopMapRedUtil.scala:50)
at
org.apache.spark.mapred.SparkHadoopMapRedUtil$.commitTask(SparkHadoopMapRedUtil.scala:77)
at
org.apache.spark.internal.io.HadoopMapReduceCommitProtocol.commitTask(HadoopMapReduceCommitProtocol.scala:244)
at
org.apache.spark.sql.execution.datasources.FileFormatDataWriter.commit(FileFormatDataWriter.scala:78)
at
org.apache.spark.sql.execution.datasources.FileFormatWriter$$anonfun$org$apache$spark$sql$execution$datasources$FileFormatWriter$$executeTask$3.apply(FileFormatWriter.scala:247)
at
org.apache.spark.sql.execution.datasources.FileFormatWriter$$anonfun$org$apache$spark$sql$execution$datasources$FileFormatWriter$$executeTask$3.apply(FileFormatWriter.scala:242)
{code}
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