I think TableDesc may not be using the right class loader here when it's trying to get the class - other parts of the code specify the class loader to use but in this context it does not. I've opened https://issues.apache.org/jira/browse/HIVE-6495.
On Feb 23, 2014, at 4:05 AM, Andreas Koch <andreas.koch1...@gmail.com> wrote: > > I am trying to upgrade from Hive 0.10 to 0.12, but I am stuck trying to debug > an error I keep getting. I have a couple of SerDes that I have developed, but > when I try to query tables with these SerDes I get a ClassNotFoundException > for the SerDe class. I know that the jar files have been loaded OK, because I > can create tables with these SerDes, but when I try to query the table Hive > throws an exception. I know that the SerDe interface that I use is now > deprecated and I have also experimented with extending the AbstractSerDe > class in stead, but I get the same behaviour. > > Any ideas? > > Thanks, > > Andreas > > > FAILED: RuntimeException org.apache.hadoop.hive.ql.metadata.HiveException: > Failed with exception java.lang.ClassNotFoundException: > my.serde.ColonSerdejava.lang.RuntimeException: > java.lang.ClassNotFoundException: my.serde.ColonSerde > at > org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializerClass(TableDesc.java:68) > at > org.apache.hadoop.hive.ql.exec.FetchOperator.getRowInspectorFromTable(FetchOperator.java:231) > at > org.apache.hadoop.hive.ql.exec.FetchOperator.getOutputObjectInspector(FetchOperator.java:608) > at org.apache.hadoop.hive.ql.exec.FetchTask.initialize(FetchTask.java:80) > at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:497) > at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:352) > at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:995) > at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1038) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:931) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:921) > at > org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268) > at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220) > at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:422) > at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:790) > at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:684) > at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:623) > 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.ClassNotFoundException: my.serde.ColonSerde > at java.net.URLClassLoader$1.run(URLClassLoader.java:366) > at java.net.URLClassLoader$1.run(URLClassLoader.java:355) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:354) > at java.lang.ClassLoader.loadClass(ClassLoader.java:425) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) > at java.lang.ClassLoader.loadClass(ClassLoader.java:358) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:190) > at > org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializerClass(TableDesc.java:66) > ... 20 more > -- CONFIDENTIALITY NOTICE NOTICE: This message is intended for the use of the individual or entity to which it is addressed and may contain information that is confidential, privileged and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any printing, copying, dissemination, distribution, disclosure or forwarding of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and delete it from your system. Thank You.
