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Posted to issues@spark.apache.org by "Bo Xiong (Jira)" <ji...@apache.org> on 2024/04/09 03:55:00 UTC
[jira] [Updated] (SPARK-47759) Apps being stuck with an unexpected stack trace when reading/parsing a legitimate time string
[ https://issues.apache.org/jira/browse/SPARK-47759?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bo Xiong updated SPARK-47759:
-----------------------------
Summary: Apps being stuck with an unexpected stack trace when reading/parsing a legitimate time string (was: Apps being stuck with an unexpected stack trace when reading/parsing a time string)
> Apps being stuck with an unexpected stack trace when reading/parsing a legitimate time string
> ---------------------------------------------------------------------------------------------
>
> Key: SPARK-47759
> URL: https://issues.apache.org/jira/browse/SPARK-47759
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.5.0, 4.0.0
> Reporter: Bo Xiong
> Assignee: Bo Xiong
> Priority: Critical
> Labels: hang, pull-request-available, stuck, threadsafe
> Fix For: 3.5.0, 4.0.0
>
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> h2. Symptom
> It's observed that our Spark apps occasionally got stuck with an unexpected stack trace when reading/parsing a legitimate time string. Note that we manually killed the stuck app instances and the rety goes thru on the same cluster (without requiring any app code change).
>
> *[Stack Trace 1]* The stack trace doesn't make sense since *120s* is a legitimate time string, where the app runs on emr-7.0.0 with Spark 3.5.0 runtime.
> {code:java}
> Caused by: java.lang.RuntimeException: java.lang.NumberFormatException: Time must be specified as seconds (s), milliseconds (ms), microseconds (us), minutes (m or min), hour (h), or day (d). E.g. 50s, 100ms, or 250us.
> Failed to parse time string: 120s
> at org.apache.spark.network.util.JavaUtils.timeStringAs(JavaUtils.java:258)
> at org.apache.spark.network.util.JavaUtils.timeStringAsSec(JavaUtils.java:275)
> at org.apache.spark.util.Utils$.timeStringAsSeconds(Utils.scala:1166)
> at org.apache.spark.rpc.RpcTimeout$.apply(RpcTimeout.scala:131)
> at org.apache.spark.util.RpcUtils$.askRpcTimeout(RpcUtils.scala:41)
> at org.apache.spark.rpc.RpcEndpointRef.<init>(RpcEndpointRef.scala:33)
> at org.apache.spark.rpc.netty.NettyRpcEndpointRef.<init>(NettyRpcEnv.scala:533)
> at org.apache.spark.rpc.netty.RequestMessage$.apply(NettyRpcEnv.scala:640)
> at org.apache.spark.rpc.netty.NettyRpcHandler.internalReceive(NettyRpcEnv.scala:697)
> at org.apache.spark.rpc.netty.NettyRpcHandler.receive(NettyRpcEnv.scala:682)
> at org.apache.spark.network.server.TransportRequestHandler.processRpcRequest(TransportRequestHandler.java:163)
> at org.apache.spark.network.server.TransportRequestHandler.handle(TransportRequestHandler.java:109)
> at org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:140)
> at org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:53)
> at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
> at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
> at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
> at org.apache.spark.network.util.TransportFrameDecoder.channelRead(TransportFrameDecoder.java:102)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
> at org.apache.spark.network.crypto.TransportCipher$DecryptionHandler.channelRead(TransportCipher.java:192)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
> at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
> at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
> at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
> at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
> at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
> at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Thread.java:840) {code}
>
> *[Stack Trace 2]* The stack trace doesn't make sense since *3s* is a legitimate time string, where the app runs on emr-6.9.0 with Spark 3.3.0 runtime.
> {code:java}
> 24/03/01 21:04:24 ERROR TransportRequestHandler: Error while invoking RpcHandler#receive() on RPC id 7358995660930182634
> java.lang.NumberFormatException: Time must be specified as seconds (s), milliseconds (ms), microseconds (us), minutes (m or min), hour (h), or day (d). E.g. 50s, 100ms, or 250us.
> Failed to parse time string: 3s
> at org.apache.spark.network.util.JavaUtils.timeStringAs(JavaUtils.java:252) ~[spark-network-common_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.internal.config.ConfigHelpers$.timeFromString(ConfigBuilder.scala:56) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.internal.config.ConfigBuilder.$anonfun$timeConf$1(ConfigBuilder.scala:256) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.internal.config.ConfigBuilder.$anonfun$timeConf$1$adapted(ConfigBuilder.scala:256) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.internal.config.ConfigEntryWithDefaultString.readFrom(ConfigEntry.scala:206) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.SparkConf.get(SparkConf.scala:261) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.util.RpcUtils$.retryWaitMs(RpcUtils.scala:46) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.rpc.RpcEndpointRef.<init>(RpcEndpointRef.scala:34) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.rpc.netty.NettyRpcEndpointRef.<init>(NettyRpcEnv.scala:533) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.rpc.netty.RequestMessage$.apply(NettyRpcEnv.scala:640) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.rpc.netty.NettyRpcHandler.internalReceive(NettyRpcEnv.scala:697) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.rpc.netty.NettyRpcHandler.receive(NettyRpcEnv.scala:682) ~[spark-core_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> at org.apache.spark.network.server.TransportRequestHandler.processRpcRequest(TransportRequestHandler.java:163) ~[spark-network-common_2.12-3.3.0-amzn-1.jar:3.3.0-amzn-1]
> ...
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496) ~[netty-transport-4.1.74.Final.jar:4.1.74.Final]
> at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) ~[netty-common-4.1.74.Final.jar:4.1.74.Final]
> at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.74.Final.jar:4.1.74.Final]
> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.74.Final.jar:4.1.74.Final]
> at java.lang.Thread.run(Thread.java:750) ~[?:1.8.0_402] {code}
>
> *[Stack Trace 3]* The stack trace is slightly different but it's also about reading/parsing a time string on the line "timeout = \{ Utils.timeStringAsSeconds(finalProp._2).seconds }" in in RpcTimeout.scala, where the app runs on emr-7.0.0 with Spark 3.5.0 runtime.
> {code:java}
> 24/04/02 14:20:14 ERROR TransportRequestHandler: Error while invoking RpcHandler#receive() for one-way message.
> java.lang.NullPointerException: Cannot invoke "scala.concurrent.duration.Duration$.apply(long, java.util.concurrent.TimeUnit)" because "scala.concurrent.duration.Duration$.MODULE$" is null
> at scala.concurrent.duration.package$DurationLong$.durationIn$extension(package.scala:60) ~[scala-library-2.12.17.jar:?]
> at scala.concurrent.duration.package$DurationLong.durationIn(package.scala:60) ~[scala-library-2.12.17.jar:?]
> at scala.concurrent.duration.DurationConversions.seconds(DurationConversions.scala:37) ~[scala-library-2.12.17.jar:?]
> at scala.concurrent.duration.DurationConversions.seconds$(DurationConversions.scala:37) ~[scala-library-2.12.17.jar:?]
> at scala.concurrent.duration.package$DurationLong.seconds(package.scala:59) ~[scala-library-2.12.17.jar:?]
> at org.apache.spark.rpc.RpcTimeout$.apply(RpcTimeout.scala:131) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.util.RpcUtils$.askRpcTimeout(RpcUtils.scala:41) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.rpc.RpcEndpointRef.<init>(RpcEndpointRef.scala:33) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.rpc.netty.NettyRpcEndpointRef.<init>(NettyRpcEnv.scala:533) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.rpc.netty.RequestMessage$.apply(NettyRpcEnv.scala:640) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.rpc.netty.NettyRpcHandler.internalReceive(NettyRpcEnv.scala:697) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.rpc.netty.NettyRpcHandler.receive(NettyRpcEnv.scala:689) ~[spark-core_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.network.server.AbstractAuthRpcHandler.receive(AbstractAuthRpcHandler.java:66) ~[spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.network.server.TransportRequestHandler.processOneWayMessage(TransportRequestHandler.java:274) [spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.network.server.TransportRequestHandler.handle(TransportRequestHandler.java:111) [spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:140) [spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:53) [spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) [netty-handler-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [netty-codec-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at org.apache.spark.network.util.TransportFrameDecoder.channelRead(TransportFrameDecoder.java:102) [spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at org.apache.spark.network.crypto.TransportCipher$DecryptionHandler.channelRead(TransportCipher.java:192) [spark-network-common_2.12-3.5.0-amzn-0.jar:3.5.0-amzn-0]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) [netty-transport-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) [netty-common-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.96.Final.jar:4.1.96.Final]
> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.96.Final.jar:4.1.96.Final]
> at java.lang.Thread.run(Thread.java:840) [?:?] {code}
> h2. What's going on?
> Based on the above observations, our hypothesis is that there's a thread-safety issue in JavaUtils.java, where a couple of methods call Pattern.compile on the fly. Note that java.util.regex.Pattern objects are thread safe, but the {{Pattern.compile}} method might not be.
> h2. Proposed fix
> * Refactor JavaUtils.java to "staic final" Pattern objects, which are immutable and are safe for use by multiple concurrent threads (see [reference|https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/regex/Pattern.html]).
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