Hcatalog 配置单元问题

Question

我正在尝试通过以下链接执行此hcatalog 示例：

http://www.cloudera.com/content/cloudera/en/documentation/cdh4/v4-2-0/CDH4-Installation-Guide/cdh4ig_topic_19_6.html

我在运行作业时遇到以下异常。

Exception in thread "main" com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: org/antlr/runtime/RecognitionException
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2232)

    at com.google.common.cache.LocalCache.get(LocalCache.java:3965)

    at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4764)

    at org.apache.hcatalog.common.HiveClientCache.getOrCreate(HiveClientCache.java:167)

    at org.apache.hcatalog.common.HiveClientCache.get(HiveClientCache.java:143)

    at org.apache.hcatalog.common.HCatUtil.getHiveClient(HCatUtil.java:544)

    at org.apache.hcatalog.mapreduce.InitializeInput.getInputJobInfo(InitializeInput.java:103)

    at org.apache.hcatalog.mapreduce.InitializeInput.setInput(InitializeInput.java:85)

    at org.apache.hcatalog.mapreduce.HCatInputFormat.setInput(HCatInputFormat.java:85)

    at org.apache.hcatalog.mapreduce.HCatInputFormat.setInput(HCatInputFormat.java:54)

    at org.apache.hcatalog.mapreduce.HCatInputFormat.setInput(HCatInputFormat.java:46)

    at com.otsi.hcat.UseHCat.run(UseHCat.java:69)

    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)

    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)

    at com.otsi.hcat.UseHCat.main(UseHCat.java:96)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)

    at org.apache.hadoop.util.RunJar.main(RunJar.java:212)

Caused by: java.lang.NoClassDefFoundError: org/antlr/runtime/RecognitionException
    at java.lang.Class.forName0(Native Method)

    at java.lang.Class.forName(Class.java:270)

    at org.apache.hadoop.hive.metastore.MetaStoreUtils.getClass(MetaStoreUtils.java:1378)

    at org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:64)

    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:498)

    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:476)

    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:524)

    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:398)

    at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:357)

    at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:54)

    at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:59)

    at org.apache.hadoop.hive.metastore.HiveMetaStore.newHMSHandler(HiveMetaStore.java:4948)

    at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:171)

    at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:154)

    at org.apache.hcatalog.common.HiveClientCache$CacheableHiveMetaStoreClient.<init>(HiveClientCache.java:246)

    at org.apache.hcatalog.common.HiveClientCache$4.call(HiveClientCache.java:170)

    at org.apache.hcatalog.common.HiveClientCache$4.call(HiveClientCache.java:167)

    at com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4767)

    at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3568)

    at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2350)

    at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2313)

    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2228)

    ... 19 more

Caused by: java.lang.ClassNotFoundException: org.antlr.runtime.RecognitionException

在运行MR job 之前，我执行了以下命令：

$ export HCAT_HOME=$HIVE_HOME/hcatalog

$HCATJAR=$HCAT_HOME/share/hcatalog/hcatalog-core-0.11.0.jar

$ HCATPIGJAR=$HCAT_HOME/share/hcatalog/hive-hcatalog-pig-adapter-0.13.0.jar

$ 出口 HADOOP_CLASSPATH=$HCATJAR:$HCATPIGJAR:$HIVE_HOME/lib/hive-exec- 0.13.0.jar:$HIVE_HOME/lib/hive-metastore-0.13.0.jar:$HIVE_HOME/lib/jdo-api- 3.0.1.jar:$HIVE_HOME/lib/libfb303-0.9.0.jar:$ HIVE_HOME/lib/libthrift-0.9.0.jar:$HIVE_HOME/lib/slf4j-api-1.6.4.jar:$HIVE_HOME/conf:/usr/hadoop/hadoop-2.4.0/etc/hadoop/

$LIBJARS=echo $HADOOP_CLASSPATH | sed -e 's/:/,/g'

$ export LIBJARS=$LIBJARS,$HIVE_HOME/lib/antlr-runtime-3.4.jar

Answer 1

我没有运行 CDH 发行版，但是我能够使用以下配置设置来完成这项工作：

export HCAT_HOME=/usr/lib/hive-hcatalog
export HIVE_HOME=/usr/lib/hive
HCATJAR=$HCAT_HOME/share/hcatalog/hive-hcatalog-core-0.13.0.2.1.1.0-385.jar
HCATPIGJAR=$HCAT_HOME/share/hcatalog/hive-hcatalog-pig-adapter-0.13.0.2.1.1.0-385.jar
HIVE_VERSION=0.13.0.2.1.1.0-385
export HADOOP_CLASSPATH=$HCATJAR:$HCATPIGJAR:$HIVE_HOME/lib/hive-exec-$HIVE_VERSION.jar:$HIVE_HOME/lib/hive-metastore-$HIVE_VERSION.jar:$HIVE_HOME/lib/libfb303-0.9.0.jar:$HIVE_HOME/lib/libthrift-0.9.0.jar:$HIVE_HOME/conf:/etc/hadoop/conf
LIBJARS=`echo $HADOOP_CLASSPATH | sed -e 's/:/,/g'`
export LIBJARS=$LIBJARS,$HIVE_HOME/lib/antlr-runtime-3.4.jar

需要注意的几点：

1. “$LIBJARS”和“$HIVE_HOME”之间最后一行的逗号是正确的。
2. 我删除了对 $HIVE_HOME/lib/jdo2-api-2.3-ec.jar 和 $HIVE_HOME/lib/slf4j-api-1.6.4.jar 的引用，因为我的 Hadoop 发行版中没有这些引用。没有它，代码运行良好。
3. Hadoop 移动得非常快，因此 jar 版本会发生变化。对于这些设置中引用的每个 jar 文件，请执行 ls -l 命令以确保 jar 文件实际存在于您认为应该存在的位置。
4. 此代码使用了一些已弃用的 API 调用。我的建议是（至少现在）不要更改代码。我发现尝试更改代码以使用非弃用版本会破坏代码（另请参阅Radek's update to the same effect）。

我希望这会有所帮助！

Answer 2

确保类路径上有以下 3 个数据核 jar。

datanucleus-rdbms-3.x.x.jar
datanucleus-core-3.x.x.jar
datanucleus-api-jdo-3.x.x.jar

此外，在 HADOOP_CLASSPATH 和 CLASSPATH 上包含“$HIVE_HOME/conf”总是好的，因为它包含有关如何连接到元存储的重要信息。

Answer 3

你需要在 ~./bashrc 中配置你的环境变量

export SQOOP_HOME=/usr/lib/sqoop
export HBASE_HOME=/usr/local/Hbase
export HIVE_HOME=/usr/local/hive
export HCAT_HOME=/usr/local/hive/hcatalog