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https://issues.apache.org/jira/browse/HBASE-2905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sandy Yin updated HBASE-2905:
-----------------------------
Status: Patch Available (was: Open)
Release Note: Fix Nullpointer exception when insert mass data via rest
interface
Use thread local variable instead of WeakHashmap to prevent the Nullpointer
Exception.
> Nullpointer Exception is throwed when insert mass data via rest interface
> -------------------------------------------------------------------------
>
> Key: HBASE-2905
> URL: https://issues.apache.org/jira/browse/HBASE-2905
> Project: HBase
> Issue Type: Bug
> Components: rest
> Affects Versions: 0.89.20100621
> Environment: CentOS 5.2 x86_64, HBase 0.89
> Reporter: Sandy Yin
> Assignee: Sandy Yin
> Fix For: 0.90.0
>
> Attachments: HBase-2905-89.patch
>
>
> Nullpointer Exception is throwed when insert mass data via rest interface.
> {code}
> java.lang.NullPointerException
> at org.mortbay.io.ByteArrayBuffer.wrap(ByteArrayBuffer.java:361)
> at
> org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:588)
> at
> com.sun.jersey.spi.container.servlet.WebComponent$Writer.write(WebComponent.java:233)
> at
> com.sun.jersey.spi.container.ContainerResponse$CommittingOutputStream.write(ContainerResponse.java:108)
> at
> org.apache.hadoop.hbase.rest.provider.producer.ProtobufMessageBodyProducer.writeTo(ProtobufMessageBodyProducer.java:78)
> at
> com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:254)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:744)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:667)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:658)
> at
> com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:318)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:425)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:604)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:747)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
> {code}
> The issue is caused by using WeakHashMap as buffer. When get the object from
> the buffer, the JVM gc possible has removed the object.
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