Do you have a lot of data? This means the scanner took too long on the server
and the client essentially timed out.
PrefixFilter does not actually skip ahead to the first row in question. You
always have to also set the scanner's startRow to the first row you care about
(i.e. the prefix).In your case also set the startRow to 'Row1'.
-- Lars
From: Talat Uyarer <[email protected]>
To: HBase User <[email protected]>
Sent: Wednesday, March 25, 2015 1:47 AM
Subject: Hbase PrefixFilter Problem
Hi all,
I try to use Prefix Filter on hbase shell. It throws an exception. I
do not understand its reason. Could you help me ?
scan 'table1',{FILTER => "PrefixFilter('Row1')", LIMIT => 1}
ROW
COLUMN+CELL
ERROR: org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException:
Expected nextCallSeq: 1 But the nextCallSeq got from client: 0;
request=scanner_id: 154160 number_of_rows: 100 close_scanner: false
next_call_seq: 0
at
org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3198)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29925)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2031)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:116)
at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:96)
at java.lang.Thread.run(Thread.java:745)
Thanks
--
Talat UYARER
Websitesi: http://talat.uyarer.com
Twitter: http://twitter.com/talatuyarer
Linkedin: http://tr.linkedin.com/pub/talat-uyarer/10/142/304
