[
https://issues.apache.org/jira/browse/FLINK-30075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635635#comment-17635635
]
zhanglu153 commented on FLINK-30075:
------------------------------------
After the ChildFirstClassLoader is created, the default will be
SafetyNetWrapperClassLoader class wrapping, SafetyNetWrapperClassLoader class
allows ChildFirstClassLoader is closed and make ChildFirstClassLoader set to
null, making ChildFirstClassLoader can be recycling, This is to prevent
classloaders from leaking. SafetyNetWrapperClassLoader class wrapper
ChildFirstClassLoader is the default behavior, which is controlled by the
classloader.check-leaked-classloader option, and the default value is true.
When the job fails or terminates, Flink will call the
org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders.SafetyNetWrapperClassLoader#close
method to close ChildFirstClassLoader and set it to null. When loadClass or
getResource, ChildFirstClassLoader will be used to load the class or resource,
and
org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders.SafetyNetWrapperClassLoader#ensureInner
method will be called in advance to ensure that ChildFirstClassLoader is not
null. If some threads use the closed ChildFirstClassLoader of Flink, the
following exception will be thrown:
{code:java}
Failed to load table into cache, will retry in 10 seconds
java.lang.IllegalStateException: Trying to access closed classloader. Please
check if you store classloaders directly or indirectly in static fields. If the
stacktrace suggests that the leak occurs in a third party library and cannot be
fixed immediately, you can disable this check with the configuration
'classloader.check-leaked-classloader'. {code}
After the task is restarted, Flink will create a new ChildFirstClassLoader
object and a new SafetyNetWrapperClassLoader object to wrap the new
ChildFirstClassLoader. All tasks will use the new ChildFirstClassLoader to load
classes and resources. However, because the fs.hdfs.impl.disable.cache option
is false by default when creating a FileSystem object in the hadoop package,
the FileSystem object cached in FileSystem.Cache will be used. The
Configuration adapted to the hadoop proxy in the FileSystem object is the
Configuration object before the task restart. The classloader stored in this
Configuration object is the ChildFirstClassLoader previously closed by Flink,
which causes an exception to be thrown when calling the closed
ChildFirstClassLoader of Flink.
> Failed to load data to the cache after the hive lookup join task is restarted
> -----------------------------------------------------------------------------
>
> Key: FLINK-30075
> URL: https://issues.apache.org/jira/browse/FLINK-30075
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Affects Versions: 1.12.2
> Reporter: zhanglu153
> Priority: Major
>
> When I test kafka and hive lookup join, only the connection between tm and
> zookeeper is disconnected after the data is successfully loaded into the
> cache. In this case, the task will be restarted because the flink task
> restart policy is configured (note that the task process does not change at
> this time, and the task restarts in the same container).
> The task sql is as follows:
> {code:java}
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> env.setParallelism(1);
> EnvironmentSettings settings =
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> settings);
> tableEnv.executeSql("CREATE TABLE kafka_table_1 (\n" +
> " a string,\n" +
> " b int,\n" +
> " c string,\n" +
> " log_ts TIMESTAMP(0),\n" +
> ") WITH (\n" +
> " 'connector' = 'kafka',\n" +
> " 'topic' = 'test',\n" +
> " 'scan.startup.mode' = 'latest-offset',\n" +
> " 'properties.bootstrap.servers' = '172.16.144.208:9092',\n" +
> " 'format' = 'csv'\n" +
> ")");
> String name = "hive_catalog";
> String hiveConfDir = "/cloud/service/flink/conf";
> HiveCatalog hive = new HiveCatalog(name, null, hiveConfDir);
> hive.open();
> tableEnv.registerCatalog(name, hive);
> tableEnv.useCatalog(name);
> tableEnv.getConfig().setSqlDialect(SqlDialect.HIVE);
> tableEnv.executeSql("create table if not exists ttt(a string,b int,c
> string)");
> tableEnv.getConfig().setSqlDialect(SqlDialect.DEFAULT);
> tableEnv.executeSql("select * from
> default_catalog.default_database.kafka_table_1 as u join ttt for system_time
> as of u.proctime as o on u.a = o.a").print();{code}
> After the task is successfully restarted, kafka produces data. When some data
> comes in, an error message is displayed indicating that loading data into the
> cache fails. The error message is as follows:
> {code:java}
> 2022-11-17 14:09:16,041 INFO
> org.apache.flink.table.filesystem.FileSystemLookupFunction [] - Populating
> lookup join cache
> 2022-11-17 14:09:16,051 INFO org.apache.hadoop.conf.Configuration
> [] - getProps 1230612033
> 2022-11-17 14:09:16,053 INFO
> org.apache.hadoop.io.retry.RetryInvocationHandler [] -
> java.io.IOException:
> org.apache.flink.shaded.hadoop2.com.google.protobuf.ServiceException:
> java.lang.IllegalStateException: Trying to access closed classloader. Please
> check if you store classloaders directly or indirectly in static fields. If
> the stacktrace suggests that the leak occurs in a third party library and
> cannot be fixed immediately, you can disable this check with the
> configuration 'classloader.check-leaked-classloader'., while invoking
> ClientNamenodeProtocolTranslatorPB.getFileInfo over
> hdp-hadoop-hdp-namenode-1.hdp-hadoop-hdp-namenode.hdp-dev-env-3.svc.cluster.local/192.168.6.85:9000.
> Trying to failover immediately.
> 2022-11-17 14:09:16,053 DEBUG org.apache.hadoop.ipc.Client
> [] - The ping interval is 60000 ms.
> 2022-11-17 14:09:16,053 DEBUG org.apache.hadoop.ipc.Client
> [] - Connecting to
> hdp-hadoop-hdp-namenode-0.hdp-hadoop-hdp-namenode.hdp-dev-env-3.svc.cluster.local/192.168.0.8:9000
> 2022-11-17 14:09:16,055 DEBUG org.apache.hadoop.security.UserGroupInformation
> [] - PrivilegedAction
> as:hadoop/hdp-flinkhistory-hdp-flink-history-6754db4f9c-8b8nd.hdp-flinkhistory-hdp-flink-history.hdp-dev-env-3.svc.cluster.lo...@dahua.com
> (auth:KERBEROS)
> from:org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:825)
> 2022-11-17 14:09:16,056 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - Sending sasl message state: NEGOTIATE
> 2022-11-17 14:09:16,057 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - Get token info proto:interface
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolPB
> info:@org.apache.hadoop.security.token.TokenInfo(value=class
> org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSelector)
> 2022-11-17 14:09:16,057 INFO org.apache.hadoop.security.SaslRpcClient
> [] - getServerPrincipal 1230612033
> 2022-11-17 14:09:16,057 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - Get kerberos info proto:interface
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolPB
> info:@org.apache.hadoop.security.KerberosInfo(clientPrincipal=,
> serverPrincipal=dfs.namenode.kerberos.principal)
> 2022-11-17 14:09:16,059 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - getting serverKey: dfs.namenode.kerberos.principal conf
> value: null principal: null
> 2022-11-17 14:09:16,059 DEBUG org.apache.hadoop.ipc.Client
> [] - closing ipc connection to
> hdp-hadoop-hdp-namenode-0.hdp-hadoop-hdp-namenode.hdp-dev-env-3.svc.cluster.local/192.168.0.8:9000:
> Couldn't set up IO streams: java.lang.IllegalArgumentException: Failed to
> specify server's Kerberos principal name
> java.io.IOException: Couldn't set up IO streams:
> java.lang.IllegalArgumentException: Failed to specify server's Kerberos
> principal name
> at
> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:891)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection.access$3700(Client.java:423)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client.getConnection(Client.java:1615)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client.call(Client.java:1446)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client.call(Client.java:1399)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at com.sun.proxy.$Proxy27.getFileInfo(Unknown Source) ~[?:?]
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:800)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ~[?:1.8.0_342]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[?:1.8.0_342]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:1.8.0_342]
> at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_342]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at com.sun.proxy.$Proxy28.getFileInfo(Unknown Source) ~[?:?]
> at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1673)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1524)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1521)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1536)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1632)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.flink.connectors.hive.read.HiveTableInputFormat.createInputSplits(HiveTableInputFormat.java:334)
> ~[flink-connector-hive_2.11-1.12.2-HDP-22.10.28.jar:1.12.2-HDP-22.10.28]
> at
> org.apache.flink.connectors.hive.read.HiveTableInputFormat.createInputSplits(HiveTableInputFormat.java:318)
> ~[flink-connector-hive_2.11-1.12.2-HDP-22.10.28.jar:1.12.2-HDP-22.10.28]
> at
> org.apache.flink.connectors.hive.read.HiveInputFormatPartitionReader.open(HiveInputFormatPartitionReader.java:83)
> ~[flink-connector-hive_2.11-1.12.2-HDP-22.10.28.jar:1.12.2-HDP-22.10.28]
> at
> org.apache.flink.table.filesystem.FileSystemLookupFunction.checkCacheReload(FileSystemLookupFunction.java:132)
> ~[flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.filesystem.FileSystemLookupFunction.eval(FileSystemLookupFunction.java:105)
> ~[flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.filesystem.security.HdpFileSystemLookupFunction.lambda$eval$1(HdpFileSystemLookupFunction.java:59)
> ~[flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.runtime.security.SecurityUtils.runAtOneContext(SecurityUtils.java:100)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.filesystem.security.HdpFileSystemLookupFunction.eval(HdpFileSystemLookupFunction.java:58)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at LookupFunction$10.flatMap(Unknown Source)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:?]
> at
> org.apache.flink.table.runtime.operators.join.lookup.LookupJoinRunner.processElement(LookupJoinRunner.java:81)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.runtime.operators.join.lookup.LookupJoinRunner.processElement(LookupJoinRunner.java:34)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.ProcessOperator.processElement(ProcessOperator.java:66)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:71)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:46)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:26)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:50)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:28)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at StreamExecCalc$7.processElement(Unknown Source)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:?]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:71)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:46)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:26)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:50)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:28)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermarkContext.processAndCollectWithTimestamp(StreamSourceContexts.java:322)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkContext.collectWithTimestamp(StreamSourceContexts.java:426)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.emitRecordsWithTimestamps(AbstractFetcher.java:365)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.partitionConsumerRecordsHandler(KafkaFetcher.java:183)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.runFetchLoop(KafkaFetcher.java:142)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:826)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:110)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:66)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:263)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> Caused by: java.lang.IllegalArgumentException: Failed to specify server's
> Kerberos principal name
> at
> org.apache.hadoop.security.SaslRpcClient.getServerPrincipal(SaslRpcClient.java:326)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.security.SaslRpcClient.createSaslClient(SaslRpcClient.java:231)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.security.SaslRpcClient.selectSaslClient(SaslRpcClient.java:159)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:391)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:617)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection.access$2200(Client.java:423)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:829)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:825)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at java.security.AccessController.doPrivileged(Native Method)
> ~[?:1.8.0_342]
> at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_342]
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:2012)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:825)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> ... 56 more{code}
> The task did not fail, but hive failed to load data into the cache.
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