Ok Anil.. Not a problem.. My intention was to just see if the api was working during createtable so that it will help you.
Regards Ram > -----Original Message----- > From: anil gupta [mailto:anilgupt...@gmail.com] > Sent: Friday, October 19, 2012 11:22 AM > To: user@hbase.apache.org > Subject: Re: Unable to add co-processor to table through HBase api > > Thanks a lot Guys. I really appreciate you help. I'll try this change > in > the morning and let you know the outcome. > > @Ram: Actually, i was trying to add the coprocessor to a per-existing > table. I think yesterday you assumed that I am trying to add the > coprocessor while creating the table. That's why there was a confusion > between us. > > On Thu, Oct 18, 2012 at 10:40 PM, Ramkrishna.S.Vasudevan < > ramkrishna.vasude...@huawei.com> wrote: > > > Yes you are right. modifyTable has to be called. > > > > public class TestClass { > > private static HBaseTestingUtility UTIL = new > HBaseTestingUtility(); > > @BeforeClass > > public static void setupBeforeClass() throws Exception { > > Configuration conf = UTIL.getConfiguration(); > > > > } > > > > @Before > > public void setUp() throws Exception{ > > UTIL.startMiniCluster(1); > > } > > > > @Test > > public void testSampe() throws Exception{ > > HBaseAdmin admin = UTIL.getHBaseAdmin(); > > Configuration conf = UTIL.getConfiguration(); > > ZooKeeperWatcher zkw = > HBaseTestingUtility.getZooKeeperWatcher(UTIL); > > String userTableName = "testSampe"; > > HTableDescriptor htd = new HTableDescriptor(userTableName); > > > > > > > //htd.addCoprocessor("org.apache.hadoop.hbase.regionserver.MockRegionOb > serve > > r"); > > HColumnDescriptor hcd = new HColumnDescriptor("col"); > > htd.addFamily(hcd); > > admin.createTable(htd); > > ZKAssign.blockUntilNoRIT(zkw); > > > > admin.disableTable(userTableName); > > > > > > > htd.addCoprocessor("org.apache.hadoop.hbase.regionserver.MockRegionObse > rver" > > ); > > admin.modifyTable(Bytes.toBytes(userTableName), htd); > > admin.enableTable(userTableName); > > HTable table = new HTable(conf, userTableName); > > > > HTableDescriptor tableDescriptor = > > admin.getTableDescriptor(Bytes.toBytes(userTableName)); > > boolean hasCoprocessor = > > > > > tableDescriptor.hasCoprocessor("org.apache.hadoop.hbase.regionserver.Mo > ckReg > > ionObserver"); > > System.out.println(hasCoprocessor); > > > > > > > > } > > } > > > > If you comment the modifyTable() you will not be able to see the > > coprocessor > > added. > > That's what I told in my previous reply itself like try doing this > while > > createTable itself. If you want to add it later then its thro modify > table > > you can do because it involves changes the HTD. > > > > Regards > > Ram > > > > > -----Original Message----- > > > From: anil gupta [mailto:anilgupt...@gmail.com] > > > Sent: Friday, October 19, 2012 11:02 AM > > > To: user@hbase.apache.org > > > Subject: Re: Unable to add co-processor to table through HBase api > > > > > > Hi Guys, > > > > > > Do you mean to say that i need to call the following method after > the > > > call > > > to addCoprocessor method: > > > > > > public void *modifyTable*(byte[] tableName, > > > HTableDescriptor > > > > <http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescript > > > or.html> > > > htd) > > > throws IOException > > > > <http://download.oracle.com/javase/6/docs/api/java/io/IOException.html? > > > is-external=true> > > > > > > > > > > http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/HBaseAdm > > > > in.html#modifyTable%28byte[],%20org.apache.hadoop.hbase.HTableDescripto > > > r%29 > > > > > > Thanks, > > > Anil Gupta > > > > > > On Thu, Oct 18, 2012 at 10:23 PM, Ramkrishna.S.Vasudevan < > > > ramkrishna.vasude...@huawei.com> wrote: > > > > > > > I can attach the code that I tried. Here as the HTD is getting > > > modified we > > > > may need to call modifyTable(). > > > > My testclass did try this while doing creation of table itself. > > > > > > > > I will attach shortly. > > > > > > > > Regards > > > > Ram > > > > > > > > > -----Original Message----- > > > > > From: anil gupta [mailto:anilgupt...@gmail.com] > > > > > Sent: Friday, October 19, 2012 10:29 AM > > > > > To: user@hbase.apache.org > > > > > Subject: Re: Unable to add co-processor to table through HBase > api > > > > > > > > > > Hi Anoop, > > > > > > > > > > Sorry, i am unable to understand what you mean by "have to > modify > > > the > > > > > table > > > > > calling Admin API??". Am i missing some other calls in my code? > > > > > > > > > > Thanks, > > > > > Anil Gupta > > > > > > > > > > On Thu, Oct 18, 2012 at 9:43 PM, Anoop Sam John > > > <anoo...@huawei.com> > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >hAdmin.getTableDescriptor(Bytes.toBytes(tableName)).addCoprocessor(cla > > > > > ssName, > > > > > > new > Path("hdfs://hbasecluster/tmp/hbase_cdh4.jar"), > > > > > > Coprocessor.PRIORITY_USER,map); > > > > > > > > > > > > Anil, > > > > > > > > > > > > Don't you have to modify the table calling Admin API?? !!!!! > > > Not > > > > > seeing > > > > > > that code here... > > > > > > > > > > > > -Anoop- > > > > > > > > > > > > ________________________________________ > > > > > > From: anil gupta [anilgupt...@gmail.com] > > > > > > Sent: Friday, October 19, 2012 2:46 AM > > > > > > To: user@hbase.apache.org > > > > > > Subject: Re: Unable to add co-processor to table through > HBase > > > api > > > > > > > > > > > > Hi Folks, > > > > > > > > > > > > Still, i am unable to add the co-processors through HBase > client > > > api. > > > > > This > > > > > > time i tried loading the coprocessor by providing the jar > path > > > along > > > > > with > > > > > > parameters. But, it failed. > > > > > > I was able to add the same coprocessor to the table through > HBase > > > > > shell. > > > > > > I also dont see any logs regarding adding coprocessors in > > > > > regionservers > > > > > > when i try to add the co-processor through api.I strongly > feel > > > that > > > > > HBase > > > > > > client api for adding coprocessor seems to be broken. Please > let > > > me > > > > > know if > > > > > > the code below seems to be problematic. > > > > > > > > > > > > Here is the code i used to add the coprocessor through HBase > api: > > > > > > private static void modifyTable() throws IOException > > > > > > { > > > > > > Configuration conf = HBaseConfiguration.create(); > > > > > > HBaseAdmin hAdmin = new HBaseAdmin(conf); > > > > > > String tableName = "txn"; > > > > > > hAdmin.disableTable(tableName); > > > > > > if(!hAdmin.isTableEnabled(tableName)) > > > > > > { > > > > > > System.out.println("Trying to add coproc to table"); // > > > using > > > > > err so > > > > > > that it's easy to read this on eclipse console. > > > > > > HashMap<String, String> map = new > HashMap<String,String>(); > > > > > > map.put("arg1", "batchdate"); > > > > > > String className = > > > > > > > > > > > > > > > "com.intuit.ihub.hbase.poc.coprocessor.observer.IhubTxnRegionObserver"; > > > > > > > > > > > > > > > > > > > > > > > > > > > hAdmin.getTableDescriptor(Bytes.toBytes(tableName)).addCoprocessor(clas > > > > > sName, > > > > > > new > Path("hdfs://hbasecluster/tmp/hbase_cdh4.jar"), > > > > > > Coprocessor.PRIORITY_USER,map); > > > > > > > > > > > > if( > > > > > > > > > > > > > > > > > > > > > hAdmin.getTableDescriptor(Bytes.toBytes(tableName)).hasCoprocessor(clas > > > > > sName) > > > > > > ) > > > > > > { > > > > > > System.err.println("YIPPPPPPPPPIEEEEE!!!!!!!"); > > > > > > } > > > > > > hAdmin.enableTable(tableName); > > > > > > > > > > > > } > > > > > > hAdmin.close(); > > > > > > } > > > > > > > > > > > > Thanks, > > > > > > Anil Gupta > > > > > > > > > > > > On Wed, Oct 17, 2012 at 9:27 PM, Ramkrishna.S.Vasudevan < > > > > > > ramkrishna.vasude...@huawei.com> wrote: > > > > > > > > > > > > > Do let me know if you are stuck up. May be I did not get > your > > > > > actual > > > > > > > problem. > > > > > > > > > > > > > > All the best. > > > > > > > > > > > > > > Regards > > > > > > > Ram > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > From: anil gupta [mailto:anilgupt...@gmail.com] > > > > > > > > Sent: Wednesday, October 17, 2012 11:34 PM > > > > > > > > To: user@hbase.apache.org > > > > > > > > Subject: Re: Unable to add co-processor to table through > > > HBase > > > > > api > > > > > > > > > > > > > > > > Hi Ram, > > > > > > > > > > > > > > > > The table exists and I don't get any error while running > the > > > > > program(i > > > > > > > > would get an error if the table did not exist). I am > running > > > a > > > > > > > > distributed > > > > > > > > cluster. > > > > > > > > > > > > > > > > Tried following additional ways also: > > > > > > > > > > > > > > > > 1. I tried loading the AggregationImplementation > coproc. > > > > > > > > 2. I also tried adding the coprocs while the table is > > > enabled. > > > > > > > > > > > > > > > > > > > > > > > > Also had a look at the JUnit test cases and could not > find > > > any > > > > > > > > difference. > > > > > > > > > > > > > > > > I am going to try adding the coproc along with jar in > Hdfs > > > and > > > > > see what > > > > > > > > happens. > > > > > > > > > > > > > > > > Thanks, > > > > > > > > Anil Gupta > > > > > > > > > > > > > > > > On Tue, Oct 16, 2012 at 11:44 PM, Ramkrishna.S.Vasudevan > < > > > > > > > > ramkrishna.vasude...@huawei.com> wrote: > > > > > > > > > > > > > > > > > I tried out a sample test class. It is working > properly. > > > I > > > > > just > > > > > > > > have a > > > > > > > > > doubt whether you are doing the > > > > > > > > > Htd.addCoprocessor() step before creating the table? > Try > > > that > > > > > way > > > > > > > > hope it > > > > > > > > > should work. > > > > > > > > > > > > > > > > > > Regards > > > > > > > > > Ram > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > From: anil gupta [mailto:anilgupt...@gmail.com] > > > > > > > > > > Sent: Wednesday, October 17, 2012 4:05 AM > > > > > > > > > > To: user@hbase.apache.org > > > > > > > > > > Subject: Unable to add co-processor to table through > > > HBase > > > > > api > > > > > > > > > > > > > > > > > > > > Hi All, > > > > > > > > > > > > > > > > > > > > I would like to add a RegionObserver to a HBase table > > > through > > > > > HBase > > > > > > > > > > api. I > > > > > > > > > > don't want to put this RegionObserver as a user or > system > > > co- > > > > > > > > processor > > > > > > > > > > in > > > > > > > > > > hbase-site.xml since this is specific to a table. So, > > > option > > > > > of > > > > > > > > using > > > > > > > > > > hbase > > > > > > > > > > properties is out. I have already copied the jar file > in > > > the > > > > > > > > classpath > > > > > > > > > > of > > > > > > > > > > region server and restarted the cluster. > > > > > > > > > > > > > > > > > > > > Can any one point out the problem in following code > for > > > > > adding the > > > > > > > > > > co-processor to the table: > > > > > > > > > > private void modifyTable(String name) throws > > > IOException > > > > > > > > > > { > > > > > > > > > > Configuration conf = HBaseConfiguration.create(); > > > > > > > > > > HBaseAdmin hAdmin = new HBaseAdmin(conf); > > > > > > > > > > hAdmin.disableTable("txn_subset"); > > > > > > > > > > if(!hAdmin.isTableEnabled("txn_subset")) > > > > > > > > > > { > > > > > > > > > > System.err.println("Trying to add coproc to > > > table"); // > > > > > using > > > > > > > > err > > > > > > > > > > so > > > > > > > > > > that it's easy to read this on eclipse console. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > hAdmin.getTableDescriptor(Bytes.toBytes("txn_subset")).addCoprocessor(" > > > > > > > > > > > > > > > > com.intuit.hbase.poc.coprocessor.observer.IhubTxnRegionObserver"); > > > > > > > > > > if( > > > > > > > > > > > > > > > > > > > > > > > > > > > hAdmin.getTableDescriptor(Bytes.toBytes("txn_subset")).hasCoprocessor(" > > > > > > > > > > > > > > > > com.intuit.hbase.poc.coprocessor.observer.IhubTxnRegionObserver") > > > > > > > > > > ) > > > > > > > > > > { > > > > > > > > > > > System.err.println("YIPPPPPPPPPIEEEEE!!!!!!!"); > > > > > > > > > > } > > > > > > > > > > hAdmin.enableTable("ihub_txn_subset"); > > > > > > > > > > } > > > > > > > > > > hAdmin.close(); > > > > > > > > > > }* > > > > > > > > > > * > > > > > > > > > > -- > > > > > > > > > > Thanks & Regards, > > > > > > > > > > Anil Gupta > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > Thanks & Regards, > > > > > > > > Anil Gupta > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > Thanks & Regards, > > > > > > Anil Gupta > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Thanks & Regards, > > > > > Anil Gupta > > > > > > > > > > > > > > > > > -- > > > Thanks & Regards, > > > Anil Gupta > > > > > > > -- > Thanks & Regards, > Anil Gupta
