With Apache HBase 1.0-based applications, you must use Protocol Buffers
2.5 in its standard package (e.g. com.google.protobuf). If you want to
use another version of protobuf, you would have to shade and relocate
that dependency.
In newer versions of HBase (2.0 I believe it will land), does the above
recommendation (shade+relocate) internally. This would let you use
whatever version of Protobuf you'd like, regardless of what HBase is using.
Hef wrote:
I change my application to use ProtocolBuffers 2.5 then this issue
resolved.
On Fri, Mar 17, 2017 at 12:36 PM, Hef<hef.onl...@gmail.com> wrote:
Hi group,
I have a problem using ProtocolBuffers 3 in my application with CDH5.6
HBase 1.0.
When creating BufferedMutator and flush data into HBase, it shows an error
as below:
java.lang.NoClassDefFoundError: Could not initialize class
org.apache.hadoop.hbase.util.ByteStringer
at org.apache.hadoop.hbase.protobuf.RequestConverter.buildRegionSpecifier(
RequestConverter.java:995)
at org.apache.hadoop.hbase.protobuf.RequestConverter.
buildGetRowOrBeforeRequest(RequestConverter.java:138)
at org.apache.hadoop.hbase.protobuf.ProtobufUtil.
getRowOrBefore(ProtobufUtil.java:1579)
at org.apache.hadoop.hbase.client.ConnectionManager$
HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1293)
at org.apache.hadoop.hbase.client.ConnectionManager$
HConnectionImplementation.locateRegion(ConnectionManager.java:1125)
at org.apache.hadoop.hbase.client.AsyncProcess.submit(
AsyncProcess.java:369)
at org.apache.hadoop.hbase.client.AsyncProcess.submit(
AsyncProcess.java:320)
at org.apache.hadoop.hbase.client.BufferedMutatorImpl.
backgroundFlushCommits(BufferedMutatorImpl.java:198)
at org.apache.hadoop.hbase.client.BufferedMutatorImpl.
doMutate(BufferedMutatorImpl.java:141)
at org.apache.hadoop.hbase.client.BufferedMutatorImpl.
mutate(BufferedMutatorImpl.java:105)
It looks like HBase is using ProtocolBuffers2.5, which cause the bytecode
incompatible.
Does anyone has experience of resolving this problem? Or I have to switch
back to protocol 2.5.
