here's the code snippet <http://pastebin.com/AGh7mTNT>
thanks, yeshwanth On Sun, Apr 27, 2014 at 10:20 PM, Ted Yu <yuzhih...@gmail.com> wrote: > Can you show us code snippet where you add filter to Scan object ? > > Thanks > > On Apr 27, 2014, at 9:43 AM, yeshwanth kumar <yeshwant...@gmail.com> > wrote: > > > hi ted, > > > > i am using fuzzyrow filter while scanning a table. > > my cluster is running on HBase 0.94.6-cdh4.5.0 > > but in my webapp i specified hbase 0.94.7. dependency. > > > > even after changing the dependency i still see the same error. > > > > thanks, > > yeshwanth. > > > > > > > > > > On Sun, Apr 27, 2014 at 10:03 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > > >> Did the exception below happen when you were performing some query on > the > >> region server ? > >> > >> Can you tell us a bit more whether your query uses FilterList ? > >> > >> Thanks > >> > >> > >> On Sun, Apr 27, 2014 at 9:28 AM, yeshwanth kumar <yeshwant...@gmail.com > >>> wrote: > >> > >>> hi jean, > >>> > >>> i am using HBase 0.94.6-cdh4.5.0 > >>> > >>> i found this in regionservers log, > >>> > >>> org.apache.hadoop.hbase.io.HbaseObjectWritable > >>> Error in readFields > >>> java.lang.ClassCastException: > >>> org.apache.hadoop.hbase.snapshot.HSnapshotDescription cannot be cast to > >>> org.apache.hadoop.hbase.filter.Filter > >>> at > >>> > org.apache.hadoop.hbase.filter.FilterList.readFields(FilterList.java:276) > >>> at org.apache.hadoop.hbase.client.Scan.readFields(Scan.java:591) > >>> at > >> > org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:689) > >>> at > org.apache.hadoop.hbase.ipc.Invocation.readFields(Invocation.java:127) > >>> at > >> > org.apache.hadoop.hbase.ipc.HBaseServer$Connection.processData(HBaseServer.java:1313) > >>> at > >> > org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:1228) > >>> at > >> > org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:750) > >>> at > >> > org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:541) > >>> at > >> > org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:516) > >>> at > >> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > >>> at > >> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > >>> at java.lang.Thread.run(Thread.java:744) > >>> > >>> how can i fix this dependency issue. > >>> > >>> > >>> > >>> > >>> On Fri, Apr 25, 2014 at 9:06 PM, yeshwanth kumar < > yeshwant...@gmail.com > >>>> wrote: > >>> > >>>> hi jean, > >>>> > >>>> i haven't written any piece of code to workaround znode, > >>>> one of my rest endpoint in webapp reads data from hbase. > >>>> it is giving me empty set. > >>>> all if found in the logs is > >>>> > >>>> Reading reply sessionid:0x145974472760023, packet:: clientPath:null > >>>> serverPath:null finished:false header:: 42,4 replyHeader:: > >>>> 42,77309411972,-101 request:: '/hbase/table/NCSVs,F response:: > >>>> hconnection-0x145974472760023 Unable to get data of znode > >>>> /hbase/table/NCSVs because node does not exist (not an error) > >>>> > >>>> this is what i found in zookeeper client > >>>> > >>>> *$[zk: localhost:2181(CONNECTED) 14] ls /hbase* > >>>> *[splitlog, online-snapshot, unassigned, table94, root-region-server, > >> rs, > >>>> backup-masters, table, draining, master, shutdown, hbaseid]* > >>>> > >>>> > >>>> -yeshwanth > >>>> > >>>> > >>>> On Fri, Apr 25, 2014 at 8:18 PM, Jean-Marc Spaggiari < > >>>> jean-m...@spaggiari.org> wrote: > >>>> > >>>>> Hi Yeshwanth, > >>>>> > >>>>> What is your webapp looking at the ZNode? If you should the Java > >> client > >>>>> and > >>>>> not look at the ZNode. Not getting why it's looking there. Do yo > >> uknow? > >>>>> > >>>>> JM > >>>>> > >>>>> > >>>>> 2014-04-25 2:01 GMT-04:00 yeshwanth kumar <yeshwant...@gmail.com>: > >>>>> > >>>>>> hi matteo, > >>>>>> > >>>>>> my problem isn't solved yet. > >>>>>> webapp isn't reading data from hbase. > >>>>>> all i see in logs is znode /hbase/table/mytable doesn't exist. > >>>>>> but all my tables are present in /hbase/table94/ > >>>>>> > >>>>>> so how can i fix this problem. > >>>>>> > >>>>>> thanks, > >>>>>> yeshwanth > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> On Tue, Apr 22, 2014 at 9:58 PM, Matteo Bertozzi < > >>>>> theo.berto...@gmail.com > >>>>>>> wrote: > >>>>>> > >>>>>>> that is already done by the server. > >>>>>>> The ZooKeeperWatcher.java is using conf.get( > >>>>>>> "zookeeper.znode.masterTableEnableDisable", "table94")); > >>>>>>> > >>>>>>> anyway, why are you looking at the znodes? > >>>>>>> a client application should never look at the znodes. > >>>>>>> The znodes are only carrying transient informations used for > >>>>> coordination > >>>>>>> > >>>>>>> Matteo > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> On Tue, Apr 22, 2014 at 9:20 AM, yeshwanth kumar < > >>>>> yeshwant...@gmail.com > >>>>>>>> wrote: > >>>>>>> > >>>>>>>> hi matteo, > >>>>>>>> > >>>>>>>> how do i specify hbase znode to use /hbase/table94 instead of > >>>>>>> /hbase/table > >>>>>>>> > >>>>>>>> thanks > >>>>>>>> > >>>>>>>> > >>>>>>>> On Tue, Apr 22, 2014 at 9:40 PM, Matteo Bertozzi < > >>>>>>> theo.berto...@gmail.com > >>>>>>>>> wrote: > >>>>>>>> > >>>>>>>>> On Tue, Apr 22, 2014 at 9:00 AM, yeshwanth kumar < > >>>>>>> yeshwant...@gmail.com > >>>>>>>>>> wrote: > >>>>>>>>> > >>>>>>>>>> @matteo > >>>>>>>>>> present znode is at /hbase/table where it is empty. > >>>>>>>>>> where as all my tables are present in /hbase/table94 > >>>>>>>>>> now webapp isn't reading the data from hbase. > >>>>>>>>> > >>>>>>>>> cdh 4.5.0 doesn't write in /hbase/table due to a compatibility > >>>>> issue > >>>>>>>>> /hbase/table94 > >>>>>>>>> is used. > >>>>>>>>> (see HBASE-6710 for details) > >>>>>>>>> > >>>>>>>>> On Tue, Apr 22, 2014 at 6:56 PM, Matteo Bertozzi < > >>>>>>>> theo.berto...@gmail.com > >>>>>>>>>> wrote: > >>>>>>>>> > >>>>>>>>>> > >>>>>>>>>>> /hbase/table94 is a "compatibility" znode that replaces > >>>>>>> /hbase/table > >>>>>>>>>>> if you want more details take a look at HBASE-6710. > >>>>>>>>>>> > >>>>>>>>>>> what is the problem of looking into /hbase/table94 instead > >>> of > >>>>>>>>>> /hbase/table? > >>>>>>>>>>> > >>>>>>>>>>> Matteo > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> On Tue, Apr 22, 2014 at 5:18 AM, yeshwanth kumar < > >>>>>>>>> yeshwant...@gmail.com > >>>>>>>>>>>> wrote: > >>>>>>>>>>> > >>>>>>>>>>>> Hi, > >>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> i am running webapp written on jaxrs framework which > >>>>> performs > >>>>>>> CRUD > >>>>>>>>>>>> opereations on hbase. > >>>>>>>>>>>> > >>>>>>>>>>>> app was working fine till last week, > >>>>>>>>>>>> now when i perform reading opeartion from hbase i don't > >>> see > >>>>>> any > >>>>>>>>> data, > >>>>>>>>>> i > >>>>>>>>>>>> don't see any errors or exceptions but i found this > >> lines > >>> in > >>>>>> the > >>>>>>>> log > >>>>>>>>>>>> > >>>>>>>>>>>> *""Unable to get data of znode /hbase/table/myTable > >>> because > >>>>>> node > >>>>>>>> does > >>>>>>>>>> not > >>>>>>>>>>>> exist (not an error)"".* > >>>>>>>>>>>> > >>>>>>>>>>>> i followed this< > >>>>> https://blog.cloudera.com/blog/2013/10/what-are-hbase-znodes/> > >>>>>>>>>>>> cloudera > >>>>>>>>>>>> article about znodes and this is what i found, > >>>>>>>>>>>> > >>>>>>>>>>>> *$[zk: localhost:2181(CONNECTED) 14] ls /hbase* > >>>>>>>>>>>> *[splitlog, online-snapshot, unassigned, table94, > >>>>>>>> root-region-server, > >>>>>>>>>> rs, > >>>>>>>>>>>> backup-masters, table, draining, master, shutdown, > >>> hbaseid]* > >>>>>>>>>>>> > >>>>>>>>>>>> all the tables were present in /hbase/table94, where as > >>>>>>>> /hbase/table > >>>>>>>>> is > >>>>>>>>>>>> empty. > >>>>>>>>>>>> > >>>>>>>>>>>> i know what is the problem now, > >>>>>>>>>>>> but i don't know how to solve it. > >>>>>>>>>>>> > >>>>>>>>>>>> can someone help me with this issue. > >>>>>>>>>>>> > >>>>>>>>>>>> Thanks, > >>>>>>>>>>>> Yeshwanth > >> >
