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https://issues.apache.org/jira/browse/FLINK-16399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jiangbo updated FLINK-16399:
----------------------------
Attachment: 13588F14-2161-4cf8-BC2F-1AA722137F3B.png
> An OOM error occurred in Flink Job Manager
> ------------------------------------------
>
> Key: FLINK-16399
> URL: https://issues.apache.org/jira/browse/FLINK-16399
> Project: Flink
> Issue Type: Bug
> Components: API / Core
> Affects Versions: 1.8.1
> Reporter: jiangbo
> Priority: Critical
> Attachments: 13588F14-2161-4cf8-BC2F-1AA722137F3B.png
>
>
> *An OOM error occurred in Flink Job Manager. The error log is as follows：*
> 2020-03-02 07:09:35,649 WARN
> org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Unhandled
> exception2020-03-02 07:09:35,649 WARN
> org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Unhandled
> exceptionjava.lang.OutOfMemoryError: Java heap space at
> org.apache.flink.shaded.netty4.io.netty.util.internal.PlatformDependent.allocateUninitializedArray(PlatformDependent.java:204)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.UnpooledUnsafeHeapByteBuf.allocateArray(UnpooledUnsafeHeapByteBuf.java:34)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf.allocateArray(UnpooledByteBufAllocator.java:144)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.UnpooledHeapByteBuf.capacity(UnpooledHeapByteBuf.java:127)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.ensureWritable0(AbstractByteBuf.java:299)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.ensureWritable(AbstractByteBuf.java:278)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1103)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1096)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1087)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.http.multipart.HttpPostMultipartRequestDecoder.offer(HttpPostMultipartRequestDecoder.java:331)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.http.multipart.HttpPostMultipartRequestDecoder.offer(HttpPostMultipartRequestDecoder.java:53)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.http.multipart.HttpPostRequestDecoder.offer(HttpPostRequestDecoder.java:227)
> at
> org.apache.flink.runtime.rest.FileUploadHandler.channelRead0(FileUploadHandler.java:122)
> at
> org.apache.flink.runtime.rest.FileUploadHandler.channelRead0(FileUploadHandler.java:67)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:438)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:426)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
> -----------------------------------------------------------------------------------------------------
> *By analyzing the dump file of the job manager process, we found that the
> class ExecutionGraphCache caches thousands of ExecutionGraphEntry objects.
> There are corresponding error logs in the job manager:*
> 2020-02-21 07:10:58,634 ERROR
> org.apache.flink.runtime.rest.handler.job.JobAccumulatorsHandler - Unhandled
> exception.2020-02-21 07:10:58,634 ERROR
> org.apache.flink.runtime.rest.handler.job.JobAccumulatorsHandler - Unhandled
> exception.java.util.concurrent.CancellationException at
> java.util.concurrent.CompletableFuture.cancel(CompletableFuture.java:2263) at
> org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache.getExecutionGraphInternal(ExecutionGraphCache.java:112)
> at
> org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache.getExecutionGraph(ExecutionGraphCache.java:84)
> at
> org.apache.flink.runtime.rest.handler.job.AbstractExecutionGraphHandler.handleRequest(AbstractExecutionGraphHandler.java:75)
> at
> org.apache.flink.runtime.rest.handler.AbstractRestHandler.respondToRequest(AbstractRestHandler.java:73)
> at
> org.apache.flink.runtime.rest.handler.AbstractHandler.respondAsLeader(AbstractHandler.java:153)
> at
> org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler.lambda$channelRead0$0(LeaderRetrievalHandler.java:81)
> at java.util.Optional.ifPresent(Optional.java:159) at
> org.apache.flink.util.OptionalConsumer.ifPresent(OptionalConsumer.java:44) at
> org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler.channelRead0(LeaderRetrievalHandler.java:78)
> at
> org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler.channelRead0(LeaderRetrievalHandler.java:49)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.runtime.rest.handler.router.RouterHandler.routed(RouterHandler.java:110)
> at
> org.apache.flink.runtime.rest.handler.router.RouterHandler.channelRead0(RouterHandler.java:89)
> at
> org.apache.flink.runtime.rest.handler.router.RouterHandler.channelRead0(RouterHandler.java:54)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.runtime.rest.FileUploadHandler.channelRead0(FileUploadHandler.java:163)
> at
> org.apache.flink.runtime.rest.FileUploadHandler.channelRead0(FileUploadHandler.java:67)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:438)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323)
> at
> org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:297)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:656)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:591)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:508)
> at
> org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:470)
> at
> org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:909)
> at java.lang.Thread.run(Thread.java:748)
>
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