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
