Hello all,
We were struggling with our HBase client connection in the NiFi 1.7.1 release.
We are not using Phoenix and our client was erroring with a missing class
exception:
Caused by: java.lang.NoClassDefFoundError: Could not initialize class
org.apache.hadoop.hbase.util.ClassSize
at org.apache.hadoop.hbase.ipc.IPCUtil.<init>(IPCUtil.java:72)
at
org.apache.hadoop.hbase.ipc.AbstractRpcClient.<init>(AbstractRpcClient.java:91)
at
org.apache.hadoop.hbase.ipc.RpcClientImpl.<init>(RpcClientImpl.java:1113)
at
org.apache.hadoop.hbase.ipc.RpcClientImpl.<init>(RpcClientImpl.java:1139)
... 33 common frames omitted
Adding a Phoenix client (which we do not need) helps resolve this class
dependency, but fails if NiFi is running on Java 10:
Caused by: java.lang.RuntimeException: Unexpected version format: 10.0.1
at org.apache.hadoop.hbase.util.ClassSize.<clinit>(ClassSize.java:119)
... 37 common frames omitted
Starting NiFi with Java 9 fixes this error, but complicates our devops as Java
9 is no longer supported and cannot be installed via package management.
Please fix this dependency issue so that a Phoenix client is not required to
resolve the org.apache.hadoop.hbase.util.ClassSize class. Also, please migrate
to Java 10 as soon as possible.
Let me know if I can help with this process.
Thanks,
Adam Martini
Senior Software Dev, Nike Digital
