Description
Suppose we create a table with Custom SerDe, then call HiveMetaStoreClient.getSchema(String db, String tableName) to extract the metadata from HiveMetaStore Service
the thrift client hangs there with exception in HiveMetaStore Service's log, such as
Exception in thread "pool-5-thread-129" java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/util/Bytes at org.apache.hadoop.hive.hbase.HBaseSerDe.parseColumnsMapping(HBaseSerDe.java:184) at org.apache.hadoop.hive.hbase.HBaseSerDeParameters.<init>(HBaseSerDeParameters.java:73) at org.apache.hadoop.hive.hbase.HBaseSerDe.initialize(HBaseSerDe.java:117) at org.apache.hadoop.hive.serde2.AbstractSerDe.initialize(AbstractSerDe.java:53) at org.apache.hadoop.hive.serde2.SerDeUtils.initializeSerDe(SerDeUtils.java:521) at org.apache.hadoop.hive.metastore.MetaStoreUtils.getDeserializer(MetaStoreUtils.java:401) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_fields_with_environment_context(HiveMetaStore.java:3556) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_schema_with_environment_context(HiveMetaStore.java:3636) at sun.reflect.GeneratedMethodAccessor104.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:107) at com.sun.proxy.$Proxy4.get_schema_with_environment_context(Unknown Source) at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_schema_with_environment_context.getResult(ThriftHiveMetastore.java:9146) at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_schema_with_environment_context.getResult(ThriftHiveMetastore.java:9130) at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:551) at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:546) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1709) at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge.java:546) at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.util.Bytes at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357)