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From "zhihai xu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-12404) Disable caching for JarURLConnection to avoid sharing JarFile with other users when loading resource from URL in Configuration class.
Date Fri, 11 Sep 2015 01:07:46 GMT
zhihai xu created HADOOP-12404:
----------------------------------

             Summary: Disable caching for JarURLConnection to avoid sharing JarFile with other
users when loading resource from URL in Configuration class.
                 Key: HADOOP-12404
                 URL: https://issues.apache.org/jira/browse/HADOOP-12404
             Project: Hadoop Common
          Issue Type: Improvement
          Components: conf
            Reporter: zhihai xu
            Assignee: zhihai xu
            Priority: Minor


Disable caching for JarURLConnection to avoid sharing JarFile with other users when loading
resource from URL in Configuration class.
Currently {{Configuration#parse}} will call {{url.openStream}} to get the InputStream for
{{DocumentBuilder}} to parse. Based on the JDK source code, the calling sequence is 
url.openStream => [handler.openConnection.getInputStream|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/sun/net/www/protocol/jar/Handler.java]
=> [new JarURLConnection|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/sun/net/www/protocol/jar/JarURLConnection.java#JarURLConnection]
=> JarURLConnection.connect => [factory.get(getJarFileURL(), getUseCaches())|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/sun/net/www/protocol/jar/JarFileFactory.java]
=>  [URLJarFile.getInputStream|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/sun/net/www/protocol/jar/URLJarFile.java#URLJarFile.getJarFile%28java.net.URL%2Csun.net.www.protocol.jar.URLJarFile.URLJarFileCloseController%29]=>[JarFile.getInputStream|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/jar/JarFile.java#JarFile.getInputStream%28java.util.zip.ZipEntry%29]=>ZipFile.getInputStream
If {{URLConnection#getUseCaches}} is true (by default), URLJarFile will be shared for the
same URL. If the shared URLJarFile is closed by other users, 
all the InputStream returned by URLJarFile#getInputStream will be closed based on the document:
http://docs.oracle.com/javase/7/docs/api/java/util/zip/ZipFile.html#getInputStream(java.util.zip.ZipEntry)
So we saw the following exception at rare situation which cause a hive job failed in a heavyload
system.
{code}
2014-10-21 23:44:41,856 ERROR org.apache.hadoop.hive.ql.exec.Task: Ended 
Job = job_1413909398487_3696 with exception 
'java.lang.RuntimeException(java.io.IOException: Stream closed)' 
java.lang.RuntimeException: java.io.IOException: Stream closed 
at 
org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2484) 
at 
org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2337) 
at 
org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2254) 
at org.apache.hadoop.conf.Configuration.get(Configuration.java:861) 
at 
org.apache.hadoop.mapred.JobConf.checkAndWarnDeprecation(JobConf.java:2030) 
at org.apache.hadoop.mapred.JobConf.<init>(JobConf.java:479) 
at org.apache.hadoop.mapred.JobConf.<init>(JobConf.java:469) 
at org.apache.hadoop.mapreduce.Cluster.getJob(Cluster.java:187) 
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:582) 
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:580) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:415) 
at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.j 
ava:1614) 
at 
org.apache.hadoop.mapred.JobClient.getJobUsingCluster(JobClient.java:580) 
at org.apache.hadoop.mapred.JobClient.getJob(JobClient.java:598) 
at 
org.apache.hadoop.hive.ql.exec.mr.HadoopJobExecHelper.progress(HadoopJobExe 
cHelper.java:288) 
at 
org.apache.hadoop.hive.ql.exec.mr.HadoopJobExecHelper.progress(HadoopJobExe 
cHelper.java:547) 
at 
org.apache.hadoop.hive.ql.exec.mr.ExecDriver.execute(ExecDriver.java:426) 
at 
org.apache.hadoop.hive.ql.exec.mr.MapRedTask.execute(MapRedTask.java:136) 
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:153) 
at 
org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:85) 
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1516) 
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1283) 
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1101) 
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:924) 
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:919) 
at 
org.apache.hive.service.cli.operation.SQLOperation.runInternal(SQLOperation 
.java:145) 
at 
org.apache.hive.service.cli.operation.SQLOperation.access$000(SQLOperation. 
java:69) 
at 
org.apache.hive.service.cli.operation.SQLOperation$1$1.run(SQLOperation.jav 
a:200) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:415) 
at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.j 
ava:1614) 
at 
org.apache.hadoop.hive.shims.HadoopShimsSecure.doAs(HadoopShimsSecure.java: 
502) 
at 
org.apache.hive.service.cli.operation.SQLOperation$1.run(SQLOperation.java: 
213) 
at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1 
145) 
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java: 
615) 
at java.lang.Thread.run(Thread.java:745) 
Caused by: java.io.IOException: Stream closed 
at 
java.util.zip.InflaterInputStream.ensureOpen(InflaterInputStream.java:67) 
at 
java.util.zip.InflaterInputStream.read(InflaterInputStream.java:142) 
at java.io.FilterInputStream.read(FilterInputStream.java:133) 
at 
com.sun.org.apache.xerces.internal.impl.XMLEntityManager$RewindableInputStr 
eam.read(XMLEntityManager.java:2902) 
at 
com.sun.org.apache.xerces.internal.impl.io.UTF8Reader.read(UTF8Reader.java: 
302) 
at 
com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScan 
ner.java:1753) 
at 
com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.skipChar(XMLEntity 
Scanner.java:1426) 
at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$Frag 
mentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2807) 
at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocu 
mentScannerImpl.java:606) 
at 
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNS 
DocumentScannerImpl.java:117) 
at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scan 
Document(XMLDocumentFragmentScannerImpl.java:510) 
at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Co 
nfiguration.java:848) 
at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Co 
nfiguration.java:777) 
at 
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:1 
41) 
at 
com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:2 
43) 
at 
com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentB 
uilderImpl.java:347) 
at 
javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:150) 
at 
org.apache.hadoop.conf.Configuration.parse(Configuration.java:2325) 
at 
org.apache.hadoop.conf.Configuration.parse(Configuration.java:2313) 
at 
org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2384)
{code}



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