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From 杨力 <bill.le...@gmail.com>
Subject Flink 1.6 ExecutionJobVertex.getTaskInformationOrBlobKey OutOfMemoryError
Date Mon, 13 Aug 2018 14:25:40 GMT
I used to runFlink SQL in streaming mode with more than 70 sqls in version
1.4. With so many sqls loaded, akka.framesize has to be set to 200 MB to
submit the job.

When I am trying to run the job with flink 1.6.0, the HTTP-based job
submission works perfectly but an OutOfMemoryError is thrown when tasks are
being depolyed.

java.lang.OutOfMemoryError: Java heap space
        at java.util.Arrays.copyOf(Arrays.java:3236)
        at
java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
        at
java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
        at
java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153)
        at
java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1877)
        at
java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1786)
        at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1189)
        at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
        at
org.apache.flink.util.InstantiationUtil.serializeObject(InstantiationUtil.java:512)
        at
org.apache.flink.util.SerializedValue.<init>(SerializedValue.java:52)
        at
org.apache.flink.runtime.blob.BlobWriter.serializeAndTryOffload(BlobWriter.java:99)
        at
org.apache.flink.runtime.executiongraph.ExecutionJobVertex.getTaskInformationOrBlobKey(ExecutionJobVertex.java:393)
        at
org.apache.flink.runtime.executiongraph.ExecutionVertex.createDeploymentDescriptor(ExecutionVertex.java:827)
        at
org.apache.flink.runtime.executiongraph.Execution.deploy(Execution.java:580)
        at
org.apache.flink.runtime.executiongraph.ExecutionGraph.lambda$scheduleEager$2(ExecutionGraph.java:963)
        at
org.apache.flink.runtime.executiongraph.ExecutionGraph$$Lambda$105/800937955.accept(Unknown
Source)
        at
java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656)
        at
java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632)
        at
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
        at
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
        at
org.apache.flink.runtime.concurrent.FutureUtils$ResultConjunctFuture.handleCompletedFuture(FutureUtils.java:541)
        at
org.apache.flink.runtime.concurrent.FutureUtils$ResultConjunctFuture$$Lambda$92/1432873073.accept(Unknown
Source)
        at
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
        at
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
        at
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
        at
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
        at
org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:772)
        at akka.dispatch.OnComplete.internal(Future.scala:259)
        at akka.dispatch.OnComplete.internal(Future.scala:256)
        at akka.dispatch.japi$CallbackBridge.apply(Future.scala:186)
        at akka.dispatch.japi$CallbackBridge.apply(Future.scala:183)
        at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36)

This OOM error raises even with a 12GB heap. I have dived into source code,
only found that ExecutionJobVertex.getTaskInformationOrBlobKey is
serializing a TaskInformation object, which seems not to be a large one.
Can anyone help me to fix or work around the problem?

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