public void prePut(ObserverContext<RegionCoprocessorEnvironment> e, Put
put, WALEdit edit, boolean writeToWAL){
RegionCoprocessorEnvironment rce = e.getEnvironment();
HTableInterface td = null;
HTableDescriptor htd = hr.getTableDesc();
Configuration conf = rce.getConfiguration();
HConnection hc = null;
try {
hc = HConnectionManager.createConnection(conf);
} catch (ZooKeeperConnectionException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
td = hc.getTable(Bytes.toBytes(tracking));
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
//td = rce.getTable(Bytes.toBytes(tracking));
Put p = new Put(put.getRow());
p.add(Bytes.toBytes("Value"), Bytes.toBytes("Current"),
Bytes.toBytes(1));
td.put(p);
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
}
On Tue, Oct 22, 2013 at 8:20 PM, Ted Yu <[email protected]> wrote:
> Can you show us your code around the following line ?
> CDCTrigger.TriggerForModification.prePut(TriggerForModification.java:51)
>
> The error was due to:
>
> public HTableInterface getTable(byte[] tableName, ExecutorService pool)
> throws IOException {
> if (managed) {
> throw new IOException("The connection has to be unmanaged.");
> }
>
> Cheers
>
>
> On Tue, Oct 22, 2013 at 11:14 AM, yonghu <[email protected]> wrote:
>
> > Ted,
> >
> > Can you tell me how to dump the stack trace of HBase? By the way, I check
> > the log of RegionServer. It has following error messages:
> >
> > java.io.IOException: The connection has to be unmanaged.
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getTable(HConnectionManager.java:669)
> > at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getTable(HConnectionManager.java:658)
> > at
> > CDCTrigger.TriggerForModification.prePut(TriggerForModification.java:51)
> > at
> >
> >
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.prePut(RegionCoprocessorHost.java:808)
> > at
> >
> >
> org.apache.hadoop.hbase.regionserver.HRegion.doPreMutationHook(HRegion.java:2196)
> > at
> >
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2172)
> > at
> >
> >
> org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3811)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> >
> >
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:320)
> > at
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1426)
> >
> >
> > On Tue, Oct 22, 2013 at 8:07 PM, Ted Yu <[email protected]> wrote:
> >
> > > Yong:
> > > Can you post full stack trace so that we can diagnose the problem ?
> > >
> > > Cheers
> > >
> > >
> > > On Tue, Oct 22, 2013 at 11:01 AM, yonghu <[email protected]>
> wrote:
> > >
> > > > Gray,
> > > >
> > > > Finally, I saw the error messages. ERROR:
> > > > org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException:
> > > Failed
> > > > 1 action: org.apache.hadoop.hbase.DoNotRetryIOException: Coprocessor:
> > > >
> > > >
> > >
> >
> 'org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionEnvironment@303a60
> > > > '
> > > > threw: 'java.lang.UnsupportedOperationException: Immutable
> > Configuration'
> > > > and has been removed from the active coprocessor set.
> > > >
> > > > I will try different approach as Ted mentioned.
> > > >
> > > >
> > > > On Tue, Oct 22, 2013 at 7:49 PM, yonghu <[email protected]>
> wrote:
> > > >
> > > > > Gray
> > > > >
> > > > > Thanks for your response. I tried your approach. But it did not
> work.
> > > The
> > > > > HBase just stalled, no messages, nothing happened. By the way, my
> > hbase
> > > > > version is 0.94.12.
> > > > >
> > > > >
> > > > >
> > > > > On Tue, Oct 22, 2013 at 7:34 PM, Gary Helmling <
> [email protected]
> > > > >wrote:
> > > > >
> > > > >> Within a coprocessor, you can just use the CoprocessorEnvironment
> > > > instance
> > > > >> passed to start() method or any of the pre/post hooks, and call
> > > > >> CoprocessorEnvironment.getTable(byte[] tablename).
> > > > >>
> > > > >>
> > > > >> On Tue, Oct 22, 2013 at 9:41 AM, Ted Yu <[email protected]>
> > wrote:
> > > > >>
> > > > >> > Take a look at
> > http://hbase.apache.org/book.html#client.connections,
> > > > >> > especially 9.3.1.1.
> > > > >> >
> > > > >> >
> > > > >> > On Tue, Oct 22, 2013 at 9:37 AM, yonghu <[email protected]>
> > > > wrote:
> > > > >> >
> > > > >> > > Hello,
> > > > >> > >
> > > > >> > > In the oldest verison of HBase , I can get the HTableInterface
> > by
> > > > >> > > HTablePool.getTable() method. However, in the latest Hbase
> > > > >> > version0.94.12,
> > > > >> > > HTablePool is deprecated. So, I tried to use
> HConnectionManager
> > to
> > > > >> create
> > > > >> > > HTableInterface, but it does not work. Can anyone tell me how
> to
> > > > >> create
> > > > >> > > HTableInterface in new HBase version? By the way, there is no
> > > error
> > > > >> > message
> > > > >> > > when I run coprocessor.
> > > > >> > >
> > > > >> > > regards!
> > > > >> > >
> > > > >> > > Yong
> > > > >> > >
> > > > >> >
> > > > >>
> > > > >
> > > > >
> > > >
> > >
> >
>
