我有以下hive-site配置：
[hadoop@ip-10-102-201-205 ~]$ cat /etc/hive/conf.dist/hive-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Licensed to the Apache Software Foundation (ASF) under one or more -->
<!-- contributor license agreements. See the NOTICE file distributed with -->
<!-- this work for additional information regarding copyright ownership. -->
<!-- The ASF licenses this file to You under the Apache License, Version 2.0 -->
<!-- (the "License"); you may not use this file except in compliance with -->
<!-- the License. You may obtain a copy of the License at -->
<!-- -->
<!-- http://www.apache.org/licenses/LICENSE-2.0 -->
<!-- -->
<!-- Unless required by applicable law or agreed to in writing, software -->
<!-- distributed under the License is distributed on an "AS IS" BASIS, -->
<!-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -->
<!-- See the License for the specific language governing permissions and -->
<!-- limitations under the License. -->
<configuration>
<!-- Hive Configuration can either be stored in this file or in the hadoop configuration files -->
<!-- that are implied by Hadoop setup variables. -->
<!-- Aside from Hadoop setup variables - this file is provided as a convenience so that Hive -->
<!-- users do not have to edit hadoop configuration files (that may be managed as a centralized -->
<!-- resource). -->
<!-- Hive Execution Parameters -->
<property>
<name>hbase.zookeeper.quorum</name>
<value>ip-10-102-201-205.ec2.internal</value>
<description>http://wiki.apache.org/hadoop/Hive/HBaseIntegration</description>
</property>
<property>
<name>hive.execution.engine</name>
<value>mr</value>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://ip-10-102-201-205.ec2.internal:8020</value>
</property>
<property>
<name>hive.metastore.uris</name>
<value>thrift://ip-10-102-201-205.ec2.internal:9083</value>
<description>JDBC connect string for a JDBC metastore</description>
</property>
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://ip-10-102-201-205.ec2.internal:3306/hive?createDatabaseIfNotExist=true</value>
<description>username to use against metastore database</description>
</property>
<property>
<name>javax.jdo.option.ConnectionDriverName</name>
<value>org.mariadb.jdbc.Driver</value>
<description>username to use against metastore database</description>
</property>
<property>
<name>javax.jdo.option.ConnectionUserName</name>
<value>hive</value>
<description>username to use against metastore database</description>
</property>
<property>
<name>javax.jdo.option.ConnectionPassword</name>
<value>nsqiBHEs6Wn8mz9b</value>
<description>password to use against metastore database</description>
</property>
<property>
<name>datanucleus.fixedDatastore</name>
<value>true</value>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>-1</value>
</property>
<property>
<name>mapred.max.split.size</name>
<value>256000000</value>
</property>
<property>
<name>hive.metastore.connect.retries</name>
<value>5</value>
</property>
<property>
<name>hive.optimize.sort.dynamic.partition</name>
<value>true</value>
</property>
<property>
<name>hive.aux.jars.path</name>
<value>file:///etc/hive/conf/jar/json-serde-1.3.8-SNAPSHOT-jar-with-dependencies.jar</value>
</property>
</configuration>
这只是AWS EMR的默认hive-site.xml，但底部设置了'hive.aux.jars.path'。
当我开始一个会话时，Hive声称加载了正确的配置文件，但配置未设置或设置不正确：
[hadoop@ip-10-102-201-205 ~]$ echo 'SHOW CONF "hive.aux.jars.path"; EXIT;' | hive --hiveconf hive.root.logger=DEBUG,console
...
16/04/27 20:49:43 [main()]: DEBUG common.LogUtils: Using hive-site.xml found on CLASSPATH at /etc/hive/conf.dist/hive-site.xml
...
hive> SHOW CONF "hive.aux.jars.path"; EXIT;
STRING The location of the plugin jars that contain implementations of user defined functions and serdes.
Time taken: 0.741 seconds, Fetched: 1 row(s)
...
第一列（空）是值的位置。这与“hive.optimize.sort.dynamic.partition”的故事相同：它在配置中设置为“true”，但在我实际运行控制台时显示为“false”。 DEBUG和TRACE日志不显示任何配置错误。为什么这些值未设置？
完整的调试输出以防任何人好奇：
[hadoop@ip-10-102-201-205 ~]$ echo 'SHOW CONF "hive.aux.jars.path"; EXIT;' | hive --hiveconf hive.root.logger=DEBUG,console
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
16/04/27 20:49:43 [main()]: DEBUG common.LogUtils: Using hive-site.xml found on CLASSPATH at /etc/hive/conf.dist/hive-site.xml
Logging initialized using configuration in file:/etc/hive/conf.dist/hive-log4j.properties
16/04/27 20:49:43 [main()]: INFO SessionState:
Logging initialized using configuration in file:/etc/hive/conf.dist/hive-log4j.properties
16/04/27 20:49:43 [main()]: DEBUG parse.VariableSubstitution: Substitution is on: hive
16/04/27 20:49:43 [main()]: DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.loginSuccess with annotation @org.apache.hadoop.metrics2.annotation.Metric(about=, always=false, sampleName=Ops, type=DEFAULT, valueName=Time, value=[Rate of successful kerberos logins and latency (milliseconds)])
16/04/27 20:49:43 [main()]: DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.loginFailure with annotation @org.apache.hadoop.metrics2.annotation.Metric(about=, always=false, sampleName=Ops, type=DEFAULT, valueName=Time, value=[Rate of failed kerberos logins and latency (milliseconds)])
16/04/27 20:49:43 [main()]: DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.getGroups with annotation @org.apache.hadoop.metrics2.annotation.Metric(about=, always=false, sampleName=Ops, type=DEFAULT, valueName=Time, value=[GetGroups])
16/04/27 20:49:43 [main()]: DEBUG impl.MetricsSystemImpl: UgiMetrics, User and group related metrics
16/04/27 20:49:43 [main()]: DEBUG util.KerberosName: Kerberos krb5 configuration not found, setting default realm to empty
16/04/27 20:49:43 [main()]: DEBUG security.Groups: Creating new Groups object
16/04/27 20:49:43 [main()]: DEBUG util.NativeCodeLoader: Trying to load the custom-built native-hadoop library...
16/04/27 20:49:43 [main()]: DEBUG util.NativeCodeLoader: Loaded the native-hadoop library
16/04/27 20:49:43 [main()]: DEBUG security.JniBasedUnixGroupsMapping: Using JniBasedUnixGroupsMapping for Group resolution
16/04/27 20:49:43 [main()]: DEBUG security.JniBasedUnixGroupsMappingWithFallback: Group mapping impl=org.apache.hadoop.security.JniBasedUnixGroupsMapping
16/04/27 20:49:43 [main()]: DEBUG security.Groups: Group mapping impl=org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback; cacheTimeout=300000; warningDeltaMs=5000
16/04/27 20:49:43 [main()]: DEBUG security.UserGroupInformation: hadoop login
16/04/27 20:49:43 [main()]: DEBUG security.UserGroupInformation: hadoop login commit
16/04/27 20:49:43 [main()]: DEBUG security.UserGroupInformation: using local user:UnixPrincipal: hadoop
16/04/27 20:49:43 [main()]: DEBUG security.UserGroupInformation: Using user: "UnixPrincipal: hadoop" with name hadoop
16/04/27 20:49:43 [main()]: DEBUG security.UserGroupInformation: User entry: "hadoop"
16/04/27 20:49:43 [main()]: DEBUG security.UserGroupInformation: UGI loginUser:hadoop (auth:SIMPLE)
16/04/27 20:49:43 [main()]: INFO hive.metastore: Trying to connect to metastore with URI thrift://ip-10-102-201-205.ec2.internal:9083
16/04/27 20:49:43 [main()]: INFO hive.metastore: Connected to metastore.
16/04/27 20:49:44 [main()]: DEBUG hdfs.BlockReaderLocal: dfs.client.use.legacy.blockreader.local = false
16/04/27 20:49:44 [main()]: DEBUG hdfs.BlockReaderLocal: dfs.client.read.shortcircuit = false
16/04/27 20:49:44 [main()]: DEBUG hdfs.BlockReaderLocal: dfs.client.domain.socket.data.traffic = false
16/04/27 20:49:44 [main()]: DEBUG hdfs.BlockReaderLocal: dfs.domain.socket.path =
16/04/27 20:49:44 [main()]: DEBUG retry.RetryUtils: multipleLinearRandomRetry = null
16/04/27 20:49:44 [main()]: DEBUG ipc.Server: rpcKind=RPC_PROTOCOL_BUFFER, rpcRequestWrapperClass=class org.apache.hadoop.ipc.ProtobufRpcEngine$RpcRequestWrapper, rpcInvoker=org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker@258d79be
16/04/27 20:49:44 [main()]: DEBUG ipc.Client: getting client out of cache: org.apache.hadoop.ipc.Client@7fcf2fc1
16/04/27 20:49:44 [Finalizer()]: DEBUG azure.NativeAzureFileSystem: finalize() called.
16/04/27 20:49:44 [Finalizer()]: DEBUG azure.NativeAzureFileSystem: finalize() called.
16/04/27 20:49:44 [client DomainSocketWatcher()]: DEBUG unix.DomainSocketWatcher: org.apache.hadoop.net.unix.DomainSocketWatcher$2@4ce9d42d: starting with interruptCheckPeriodMs = 60000
16/04/27 20:49:44 [main()]: DEBUG util.PerformanceAdvisory: Both short-circuit local reads and UNIX domain socket are disabled.
16/04/27 20:49:44 [main()]: DEBUG sasl.DataTransferSaslUtil: DataTransferProtocol not using SaslPropertiesResolver, no QOP found in configuration for dfs.data.transfer.protection
16/04/27 20:49:44 [main()]: DEBUG ipc.Client: The ping interval is 60000 ms.
16/04/27 20:49:44 [main()]: DEBUG ipc.Client: Connecting to ip-10-102-201-205.ec2.internal/10.102.201.205:8020
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop: starting, having connections 1
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #0
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #0
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 45ms
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #1
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #1
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 1ms
16/04/27 20:49:44 [main()]: DEBUG session.SessionState: HDFS root scratch dir: /tmp/hive, permission: rwx-wx-wx
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #2
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #2
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 1ms
16/04/27 20:49:44 [main()]: DEBUG nativeio.NativeIO: Initialized cache for IDs to User/Group mapping with a cache timeout of 14400 seconds.
16/04/27 20:49:44 [main()]: INFO session.SessionState: Created local directory: /mnt/tmp/f113c3f9-3316-4998-8e80-9bd4c3fc079c_resources
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #3
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #3
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 2ms
16/04/27 20:49:44 [main()]: DEBUG hdfs.DFSClient: /tmp/hive/hadoop/f113c3f9-3316-4998-8e80-9bd4c3fc079c: masked=rwx------
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #4
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #4
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: mkdirs took 3ms
16/04/27 20:49:44 [main()]: INFO session.SessionState: Created HDFS directory: /tmp/hive/hadoop/f113c3f9-3316-4998-8e80-9bd4c3fc079c
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #5
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #5
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 2ms
16/04/27 20:49:44 [main()]: INFO session.SessionState: Created local directory: /mnt/tmp/hadoop/f113c3f9-3316-4998-8e80-9bd4c3fc079c
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #6
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #6
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 1ms
16/04/27 20:49:44 [main()]: DEBUG hdfs.DFSClient: /tmp/hive/hadoop/f113c3f9-3316-4998-8e80-9bd4c3fc079c/_tmp_space.db: masked=rwx------
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #7
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #7
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: mkdirs took 2ms
16/04/27 20:49:44 [main()]: INFO session.SessionState: Created HDFS directory: /tmp/hive/hadoop/f113c3f9-3316-4998-8e80-9bd4c3fc079c/_tmp_space.db
16/04/27 20:49:44 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #8
16/04/27 20:49:44 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #8
16/04/27 20:49:44 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 1ms
16/04/27 20:49:44 [main()]: INFO session.SessionState: No Tez session required at this point. hive.execution.engine=mr.
16/04/27 20:49:44 [main()]: DEBUG exec.Utilities: Use session specified class loader
16/04/27 20:49:44 [main()]: DEBUG exec.Utilities: Use session specified class loader
16/04/27 20:49:44 [main()]: DEBUG exec.Utilities: Use session specified class loader
<this line repeats many times>
hive> SHOW CONF "hive.aux.jars.path"; EXIT;
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: <PERFLOG method=Driver.run from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: <PERFLOG method=TimeToSubmit from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: INFO ql.Driver: Concurrency mode is disabled, not creating a lock manager
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: <PERFLOG method=compile from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: DEBUG parse.VariableSubstitution: Substitution is on: SHOW CONF "hive.aux.jars.path"
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: <PERFLOG method=parse from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: INFO parse.ParseDriver: Parsing command: SHOW CONF "hive.aux.jars.path"
16/04/27 20:49:45 [main()]: INFO parse.ParseDriver: Parse Completed
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: </PERFLOG method=parse start=1461790185397 end=1461790185846 duration=449 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: DEBUG ql.Driver: Encoding valid txns info 9223372036854775807:
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: <PERFLOG method=semanticAnalyze from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: INFO ql.Driver: Semantic Analysis Completed
16/04/27 20:49:45 [main()]: INFO log.PerfLogger: </PERFLOG method=semanticAnalyze start=1461790185852 end=1461790185931 duration=79 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:45 [main()]: DEBUG exec.Utilities: Use session specified class loader
16/04/27 20:49:46 [main()]: DEBUG lazy.LazySimpleSerDe: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe initialized with: columnNames=[default, type, desc] columnTypes=[string, string, string] separator=[[B@1e63d216] nullstring= lastColumnTakesRest=false
16/04/27 20:49:46 [main()]: INFO exec.ListSinkOperator: Initializing Self OP[0]
16/04/27 20:49:46 [main()]: DEBUG exec.Utilities: Use session specified class loader
16/04/27 20:49:46 [main()]: DEBUG lazy.LazySimpleSerDe: org.apache.hadoop.hive.serde2.DelimitedJSONSerDe initialized with: columnNames=[] columnTypes=[] separator=[[B@1280851e] nullstring= lastColumnTakesRest=false
16/04/27 20:49:46 [main()]: INFO exec.ListSinkOperator: Operator 0 OP initialized
16/04/27 20:49:46 [main()]: INFO exec.ListSinkOperator: Initialization Done 0 OP
16/04/27 20:49:46 [main()]: DEBUG exec.Utilities: Use session specified class loader
16/04/27 20:49:46 [main()]: DEBUG lazy.LazySimpleSerDe: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe initialized with: columnNames=[default, type, desc] columnTypes=[string, string, string] separator=[[B@5e840abf] nullstring= lastColumnTakesRest=false
16/04/27 20:49:46 [main()]: INFO ql.Driver: Returning Hive schema: Schema(fieldSchemas:[FieldSchema(name:default, type:string, comment:from deserializer), FieldSchema(name:type, type:string, comment:from deserializer), FieldSchema(name:desc, type:string, comment:from deserializer)], properties:null)
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: </PERFLOG method=compile start=1461790185344 end=1461790186055 duration=711 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: <PERFLOG method=Driver.execute from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO ql.Driver: Starting command: SHOW CONF "hive.aux.jars.path"
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: </PERFLOG method=TimeToSubmit start=1461790185344 end=1461790186062 duration=718 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: <PERFLOG method=runTasks from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: <PERFLOG method=task.DDL.Stage-0 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO ql.Driver: Starting task [Stage-0:DDL] in serial mode
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: </PERFLOG method=runTasks start=1461790186062 end=1461790186078 duration=16 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: </PERFLOG method=Driver.execute start=1461790186055 end=1461790186078 duration=23 from=org.apache.hadoop.hive.ql.Driver>
OK
16/04/27 20:49:46 [main()]: INFO ql.Driver: OK
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: <PERFLOG method=releaseLocks from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: </PERFLOG method=releaseLocks start=1461790186079 end=1461790186079 duration=0 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO log.PerfLogger: </PERFLOG method=Driver.run start=1461790185344 end=1461790186079 duration=735 from=org.apache.hadoop.hive.ql.Driver>
16/04/27 20:49:46 [main()]: INFO Configuration.deprecation: mapred.input.dir is deprecated. Instead, use mapreduce.input.fileinputformat.inputdir
16/04/27 20:49:46 [main()]: INFO lzo.GPLNativeCodeLoader: Loaded native gpl library
16/04/27 20:49:46 [main()]: INFO lzo.LzoCodec: Successfully loaded & initialized native-lzo library [hadoop-lzo rev 72c57a1c06c471da40827b432ecff0de6a5c6dcc]
16/04/27 20:49:46 [main()]: DEBUG mapred.FileInputFormat: Time taken to get FileStatuses: 3
16/04/27 20:49:46 [main()]: INFO mapred.FileInputFormat: Total input paths to process : 1
16/04/27 20:49:46 [main()]: DEBUG mapred.FileInputFormat: Total # of splits generated by getSplits: 1, TimeTaken: 12
16/04/27 20:49:46 [main()]: DEBUG lazy.LazySimpleSerDe: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe initialized with: columnNames=[default, type, desc] columnTypes=[string, string, string] separator=[[B@2dbd803f] nullstring= lastColumnTakesRest=false
16/04/27 20:49:46 [main()]: DEBUG lazy.LazySimpleSerDe: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe initialized with: columnNames=[default, type, desc] columnTypes=[string, string, string] separator=[[B@3e48e859] nullstring= lastColumnTakesRest=false
16/04/27 20:49:46 [main()]: DEBUG exec.FetchOperator: Creating fetchTask with deserializer typeinfo: struct<default:string,type:string,desc:string>
16/04/27 20:49:46 [main()]: DEBUG exec.FetchOperator: deserializer properties:
table properties: {columns=default,type,desc, serialization.null.format= , serialization.lib=org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, serialization.format=9, columns.types=string,string,string}
partition properties: {columns=default,type,desc, serialization.null.format= , serialization.lib=org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, serialization.format=9, columns.types=string,string,string}
STRING The location of the plugin jars that contain implementations of user defined functions and serdes.
16/04/27 20:49:46 [main()]: INFO exec.ListSinkOperator: 0 finished. closing...
16/04/27 20:49:46 [main()]: INFO exec.ListSinkOperator: 0 Close done
16/04/27 20:49:46 [main()]: DEBUG ql.Driver: Shutting down query SHOW CONF "hive.aux.jars.path"
Time taken: 0.741 seconds, Fetched: 1 row(s)
16/04/27 20:49:46 [main()]: INFO CliDriver: Time taken: 0.741 seconds, Fetched: 1 row(s)
16/04/27 20:49:46 [main()]: DEBUG session.SessionState: Removing resource dir /mnt/tmp/f113c3f9-3316-4998-8e80-9bd4c3fc079c_resources
16/04/27 20:49:46 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #9
16/04/27 20:49:46 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #9
16/04/27 20:49:46 [main()]: DEBUG ipc.ProtobufRpcEngine: Call: delete took 3ms
16/04/27 20:49:46 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #10
16/04/27 20:49:46 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #10
16/04/27 20:49:46 [Thread-0()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 2ms
16/04/27 20:49:46 [IPC Parameter Sending Thread #0()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop sending #11
16/04/27 20:49:46 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop got value #11
16/04/27 20:49:46 [Thread-0()]: DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 1ms
16/04/27 20:49:46 [Thread-0()]: DEBUG ipc.Client: stopping client from cache: org.apache.hadoop.ipc.Client@7fcf2fc1
16/04/27 20:49:46 [Thread-0()]: DEBUG ipc.Client: removing client from cache: org.apache.hadoop.ipc.Client@7fcf2fc1
16/04/27 20:49:46 [Thread-0()]: DEBUG ipc.Client: stopping actual client because no more references remain: org.apache.hadoop.ipc.Client@7fcf2fc1
16/04/27 20:49:46 [Thread-0()]: DEBUG ipc.Client: Stopping client
16/04/27 20:49:46 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop: closed
16/04/27 20:49:46 [IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop()]: DEBUG ipc.Client: IPC Client (1309129055) connection to ip-10-102-201-205.ec2.internal/10.102.201.205:8020 from hadoop: stopped, remaining connections 0
答案 0 :(得分：1)
来自Hive AdminManual：
您可以显示有关配置变量的信息 SHOW CONF命令。
来自Hive LanguageManual：
set <key>=<value>设置特定配置的值 变量（键）。
本手册未明确说明您还可以显示 当前值 set <key>。
底线：在Hive CLI中运行set hive.aux.jars.path ;以显示当前值，该值在先前的set命令中设置为（a），或 （b）作为命令行参数，或hive-site.xml中的（c），或者（d）在所有这些中失败 - 编码默认值。
SHOW CONF仅在您需要有关硬编码默认值的技术文档时才有用，并且无法访问互联网...