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Posted to user@hbase.apache.org by Ramon Wang <ra...@appannie.com> on 2013/12/17 10:15:04 UTC

Thrift Error in HBase

Hi Folks

We upgraded our cluster to CDH4.5.0 recently, HBase version is
0.94.6-cdh4.5.0 now. Our client program(written in Python) cannot save data
by using Thrift, there are errors happen when we are trying to save data
with many columns(more than 7 or 8), and here is the error log:

2013-12-17 08:54:39,582 ERROR org.apache.thrift.ProcessFunction: Internal
> error processing mutateRows
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.util.Bytes.getBytes(Bytes.java:781)
> at
> org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRowsTs(ThriftServerRunner.java:1037)
> at
> org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRows(ThriftServerRunner.java:1018)


I checked the HBase source code, but cannot understand what happens there,
why there can be a NullPointerException, if i save data directly by using
Java client without Thrift, everything works. Any ideas? Thanks in advance.

Cheers
Ramon

Re: Thrift Error in HBase

Posted by Ramon Wang <ra...@appannie.com>.

Thanks guys, we have fixed it by reinstall the python depended Thrift lib.

Cheers
Ramon

Re: Thrift Error in HBase

Posted by Anoop John <an...@gmail.com>.

As per the line no it comes as

* byte*[][] famAndQf = KeyValue.*parseColumn*(*getBytes*(m.column));
column inside Mutation comes as null...  Can you check client code

-Anoop-

On Tue, Dec 17, 2013 at 2:59 PM, ramkrishna vasudevan <
ramkrishna.s.vasudevan@gmail.com> wrote:

> Due to some reason the row that is created inside the BatchMutation is
> null.  Can you check your Thrift client code where BatchMutation is
> created?
>
>
> On Tue, Dec 17, 2013 at 2:45 PM, Ramon Wang <ra...@appannie.com> wrote:
>
> > Hi Folks
> >
> > We upgraded our cluster to CDH4.5.0 recently, HBase version is
> > 0.94.6-cdh4.5.0 now. Our client program(written in Python) cannot save
> data
> > by using Thrift, there are errors happen when we are trying to save data
> > with many columns(more than 7 or 8), and here is the error log:
> >
> > 2013-12-17 08:54:39,582 ERROR org.apache.thrift.ProcessFunction: Internal
> > > error processing mutateRows
> > > java.lang.NullPointerException
> > > at org.apache.hadoop.hbase.util.Bytes.getBytes(Bytes.java:781)
> > > at
> > >
> >
> org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRowsTs(ThriftServerRunner.java:1037)
> > > at
> > >
> >
> org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRows(ThriftServerRunner.java:1018)
> >
> >
> > I checked the HBase source code, but cannot understand what happens
> there,
> > why there can be a NullPointerException, if i save data directly by using
> > Java client without Thrift, everything works. Any ideas? Thanks in
> advance.
> >
> > Cheers
> > Ramon
> >
>

Re: Thrift Error in HBase

Posted by ramkrishna vasudevan <ra...@gmail.com>.

Due to some reason the row that is created inside the BatchMutation is
null.  Can you check your Thrift client code where BatchMutation is created?


On Tue, Dec 17, 2013 at 2:45 PM, Ramon Wang <ra...@appannie.com> wrote:

> Hi Folks
>
> We upgraded our cluster to CDH4.5.0 recently, HBase version is
> 0.94.6-cdh4.5.0 now. Our client program(written in Python) cannot save data
> by using Thrift, there are errors happen when we are trying to save data
> with many columns(more than 7 or 8), and here is the error log:
>
> 2013-12-17 08:54:39,582 ERROR org.apache.thrift.ProcessFunction: Internal
> > error processing mutateRows
> > java.lang.NullPointerException
> > at org.apache.hadoop.hbase.util.Bytes.getBytes(Bytes.java:781)
> > at
> >
> org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRowsTs(ThriftServerRunner.java:1037)
> > at
> >
> org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRows(ThriftServerRunner.java:1018)
>
>
> I checked the HBase source code, but cannot understand what happens there,
> why there can be a NullPointerException, if i save data directly by using
> Java client without Thrift, everything works. Any ideas? Thanks in advance.
>
> Cheers
> Ramon
>