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Posted to issues@spark.apache.org by "Alex Liu (JIRA)" <ji...@apache.org> on 2014/11/07 18:18:34 UTC
[jira] [Created] (SPARK-4300) Race condition during SparkWorker
shutdown
Alex Liu created SPARK-4300:
-------------------------------
Summary: Race condition during SparkWorker shutdown
Key: SPARK-4300
URL: https://issues.apache.org/jira/browse/SPARK-4300
Project: Spark
Issue Type: Bug
Components: Spark Shell
Affects Versions: 1.1.0
Reporter: Alex Liu
Priority: Minor
When a shark job is done. there are some error message as following show in the log
{code}
INFO 22:10:41,635 SparkMaster: akka.tcp://sparkDriver@ip-172-31-11-204.us-west-1.compute.internal:57641 got disassociated, removing it.
INFO 22:10:41,640 SparkMaster: Removing app app-20141106221014-0000
INFO 22:10:41,687 SparkMaster: Removing application Shark::ip-172-31-11-204.us-west-1.compute.internal
INFO 22:10:41,710 SparkWorker: Asked to kill executor app-20141106221014-0000/0
INFO 22:10:41,712 SparkWorker: Runner thread for executor app-20141106221014-0000/0 interrupted
INFO 22:10:41,714 SparkWorker: Killing process!
ERROR 22:10:41,738 SparkWorker: Error writing stream to file /var/lib/spark/work/app-20141106221014-0000/0/stdout
ERROR 22:10:41,739 SparkWorker: java.io.IOException: Stream closed
ERROR 22:10:41,739 SparkWorker: at java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:162)
ERROR 22:10:41,740 SparkWorker: at java.io.BufferedInputStream.read1(BufferedInputStream.java:272)
ERROR 22:10:41,740 SparkWorker: at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
ERROR 22:10:41,740 SparkWorker: at java.io.FilterInputStream.read(FilterInputStream.java:107)
ERROR 22:10:41,741 SparkWorker: at org.apache.spark.util.logging.FileAppender.appendStreamToFile(FileAppender.scala:70)
ERROR 22:10:41,741 SparkWorker: at org.apache.spark.util.logging.FileAppender$$anon$1$$anonfun$run$1.apply$mcV$sp(FileAppender.scala:39)
ERROR 22:10:41,741 SparkWorker: at org.apache.spark.util.logging.FileAppender$$anon$1$$anonfun$run$1.apply(FileAppender.scala:39)
ERROR 22:10:41,742 SparkWorker: at org.apache.spark.util.logging.FileAppender$$anon$1$$anonfun$run$1.apply(FileAppender.scala:39)
ERROR 22:10:41,742 SparkWorker: at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1311)
ERROR 22:10:41,742 SparkWorker: at org.apache.spark.util.logging.FileAppender$$anon$1.run(FileAppender.scala:38)
INFO 22:10:41,838 SparkMaster: Connected to Cassandra cluster: 4299
INFO 22:10:41,839 SparkMaster: Adding host 172.31.11.204 (Analytics)
INFO 22:10:41,840 SparkMaster: New Cassandra host /172.31.11.204:9042 added
INFO 22:10:41,841 SparkMaster: Adding host 172.31.11.204 (Analytics)
INFO 22:10:41,842 SparkMaster: Adding host 172.31.11.204 (Analytics)
INFO 22:10:41,852 SparkMaster: akka.tcp://sparkDriver@ip-172-31-11-204.us-west-1.compute.internal:57641 got disassociated, removing it.
INFO 22:10:41,853 SparkMaster: akka.tcp://sparkDriver@ip-172-31-11-204.us-west-1.compute.internal:57641 got disassociated, removing it.
INFO 22:10:41,853 SparkMaster: akka.tcp://sparkDriver@ip-172-31-11-204.us-west-1.compute.internal:57641 got disassociated, removing it.
INFO 22:10:41,857 SparkMaster: akka.tcp://sparkDriver@ip-172-31-11-204.us-west-1.compute.internal:57641 got disassociated, removing it.
INFO 22:10:41,862 SparkMaster: Adding host 172.31.11.204 (Analytics)
WARN 22:10:42,200 SparkMaster: Got status update for unknown executor app-20141106221014-0000/0
INFO 22:10:42,211 SparkWorker: Executor app-20141106221014-0000/0 finished with state KILLED exitStatus 143
{code}
/var/lib/spark/work/app-20141106221014-0000/0/stdout is on the disk. It is trying to write to a close IO stream.
Spark worker shuts down by {code}
private def killProcess(message: Option[String]) {
var exitCode: Option[Int] = None
logInfo("Killing process!")
process.destroy()
process.waitFor()
if (stdoutAppender != null) {
stdoutAppender.stop()
}
if (stderrAppender != null) {
stderrAppender.stop()
}
if (process != null) {
exitCode = Some(process.waitFor())
}
worker ! ExecutorStateChanged(appId, execId, state, message, exitCode)
{code}
But stdoutAppender concurrently writes to output log file, which creates race condition.
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