Check your master log. Something is seriously off if you do not have a reachable .META. table. St.Ack
On Fri, Jan 22, 2010 at 1:09 PM, Sriram Muthuswamy Chittathoor <[email protected]> wrote: > I applied the hbase-0.20.3 version / hadoop 0.20.1. But after starting > hbase I keep getting the error below when I go to the hbase shell > > [ppo...@karisimbivir1 hbase-0.20.3]$ ./bin/hbase shell > HBase Shell; enter 'help<RETURN>' for list of supported commands. > Version: 0.20.3, r900041, Sat Jan 16 17:20:21 PST 2010 > hbase(main):001:0> list > NativeException: > org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to > contact region server null for region , row '', but failed after 7 > attempts. > Exceptions: > org.apache.hadoop.hbase.TableNotFoundException: .META. > org.apache.hadoop.hbase.TableNotFoundException: .META. > org.apache.hadoop.hbase.TableNotFoundException: .META. > org.apache.hadoop.hbase.TableNotFoundException: .META. > org.apache.hadoop.hbase.TableNotFoundException: .META. > org.apache.hadoop.hbase.TableNotFoundException: .META. > org.apache.hadoop.hbase.TableNotFoundException: .META. > > > > Also when I try to create a table programatically I get this -- > 10/01/22 15:48:23 INFO zookeeper.ClientCnxn: Attempting connection to > server localhost/127.0.0.1:2181 > 10/01/22 15:48:23 INFO zookeeper.ClientCnxn: Priming connection to > java.nio.channels.SocketChannel[connected local=/127.0.0.1:43775 > remote=localhost/127.0.0.1:2181] > 10/01/22 15:48:23 INFO zookeeper.ClientCnxn: Server connection > successful > Exception in thread "main" > org.apache.hadoop.hbase.TableNotFoundException: .META. > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg > ionInMeta(HConnectionManager.java:684) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg > ion(HConnectionManager.java:634) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg > ion(HConnectionManager.java:601) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg > ionInMeta(HConnectionManager.java:675) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg > ion(HConnectionManager.java:638) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg > ion(HConnectionManager.java:601) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:128) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:106) > at test.CreateTable.main(CreateTable.java:36) > > > > Any clues ? > > > > -----Original Message----- > From: Dan Washusen [mailto:[email protected]] > Sent: Friday, January 22, 2010 4:53 AM > To: [email protected] > Subject: Re: Support for MultiGet / SQL In clause -- error in patch > HBASE-1845 > > If you want to give the "indexed" contrib package a try you'll need to > do > the following: > > 1. Include the contrib jars (export HBASE_CLASSPATH=(`find > /path/to/hbase/hbase-0.20.3/contrib/indexed -name '*jar' | tr -s "\n" > ":"`) > 2. Set the 'hbase.hregion.impl' property to > 'org.apache.hadoop.hbase.regionserver.IdxRegion' in your > hbase-site.xml > > Once you've done that you can create a table with an index using: > >> // define which qualifiers need an index (choosing the correct > type) >> IdxColumnDescriptor columnDescriptor = new >> IdxColumnDescriptor("columnFamily"); >> columnDescriptor.addIndexDescriptor( >> new IdxIndexDescriptor("qualifier", IdxQualifierType.BYTE_ARRAY) >> ); >> >> HTableDescriptor tableDescriptor = new HTableDescriptor("table"); >> tableDescriptor.addFamily(columnDescriptor); >> > > Then when you want to perform a scan with an index hint: > >> Scan scan = new IdxScan( >> new Comparison("columnFamily", "qualifier", >> Comparison.Operator.EQ, Bytes.toBytes("foo")) >> ); >> > > You have to keep in mind that the index hint is only a hint. It > guarantees > that your scan will get all rows that match the hint but you'll more > than > likely receive rows that don't. For this reason I'd suggest that you > also > include a filter along with the scan: > >> Scan scan = new IdxScan( >> new Comparison("columnFamily", "qualifier", >> Comparison.Operator.EQ, Bytes.toBytes("foo")) >> ); >> scan.setFilter( >> new SingleColumnValueFilter( >> "columnFamily", "qualifer", > CompareFilter.CompareOp.EQUAL, >> new BinaryComparator("foo") >> ) >> ); >> > > Cheers, > Dan > > > 2010/1/22 stack <[email protected]> > >> > http://people.apache.org/~jdcryans/hbase-0.20.3-candidate-2/<http://peop > le.apache.org/%7Ejdcryans/hbase-0.20.3-candidate-2/> >> >> There is a bit of documentation if you look at javadoc for the >> 'indexed' contrib (This is what hbase-2073 is called on commit). >> >> St.Ack >> >> P.S. We had a thread going named "HBase bulk load". You got all the >> answers you need on that one? >> >> On Thu, Jan 21, 2010 at 11:19 AM, Sriram Muthuswamy Chittathoor >> <[email protected]> wrote: >> > >> > Great. Can I migrate to 0.20.3RC2 easily. I am on 0.20.2. Can u > pass >> > me the link >> > >> > -----Original Message----- >> > From: [email protected] [mailto:[email protected]] On Behalf Of >> > stack >> > Sent: Friday, January 22, 2010 12:42 AM >> > To: [email protected] >> > Subject: Re: Support for MultiGet / SQL In clause -- error in patch >> > HBASE-1845 >> > >> > IIRC, hbase-1845 was a sketch only and not yet complete. Its > probably >> > rotted since any ways. >> > >> > Have you looked at hbase-2037 since committed and available in >> > 0.20.3RC2. >> > Would this help you with your original problem? >> > >> > St.Ack >> > >> > On Thu, Jan 21, 2010 at 9:10 AM, Sriram Muthuswamy Chittathoor < >> > [email protected]> wrote: >> > >> > > I tried applying the patch to the hbase source code hbase 0.20.2 > and >> > I >> > > get the errors below. Do you know if this needs to be applied to > a >> > > specific hbase version. Is there a version which works with 0.20.2 > or >> > > later ?? >> > > Basically HRegionServer and HTable patching fails. >> > > >> > > >> > > Thanks for the help >> > > >> > > patch -p0 -i batch.patch >> > > >> > > patching file src/java/org/apache/hadoop/hbase/client/Get.java >> > > Hunk #1 succeeded at 61 (offset 2 lines). >> > > Hunk #2 succeeded at 347 (offset 31 lines). >> > > patching file > src/java/org/apache/hadoop/hbase/client/HConnection.java >> > > patching file >> > > src/java/org/apache/hadoop/hbase/client/HConnectionManager.java >> > > Hunk #3 succeeded at 1244 (offset 6 lines). >> > > patching file src/java/org/apache/hadoop/hbase/client/HTable.java >> > > Hunk #2 succeeded at 73 (offset 8 lines). >> > > Hunk #4 FAILED at 405. >> > > Hunk #5 succeeded at 671 with fuzz 2 (offset 26 lines). >> > > 1 out of 5 hunks FAILED -- saving rejects to file >> > > src/java/org/apache/hadoop/hbase/client/HTable.java.rej >> > > patching file src/java/org/apache/hadoop/hbase/client/Multi.java >> > > patching file >> > src/java/org/apache/hadoop/hbase/client/MultiCallable.java >> > > patching file > src/java/org/apache/hadoop/hbase/client/MultiResult.java >> > > patching file src/java/org/apache/hadoop/hbase/client/Row.java >> > > patching file >> > > src/java/org/apache/hadoop/hbase/io/HbaseObjectWritable.java >> > > Hunk #2 succeeded at 156 with fuzz 1 (offset 3 lines). >> > > patching file >> > src/java/org/apache/hadoop/hbase/ipc/HRegionInterface.java >> > > Hunk #2 succeeded at 247 (offset 2 lines). >> > > patching file >> > > src/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java >> > > Hunk #1 succeeded at 78 (offset -1 lines). >> > > Hunk #2 FAILED at 2515. >> > > 1 out of 2 hunks FAILED -- saving rejects to file >> > > > src/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java.rej >> > > patching file > src/test/org/apache/hadoop/hbase/client/TestHTable.java >> > > Hunk #2 FAILED at 333. >> > > 1 out of 2 hunks FAILED -- saving rejects to file >> > > src/test/org/apache/hadoop/hbase/client/TestHTable.java.rej >> > > >> > > >> > > >> > > >> > > -----Original Message----- >> > > From: Marc Limotte [mailto:[email protected]] >> > > Sent: Tuesday, January 19, 2010 10:26 PM >> > > To: [email protected] >> > > Subject: Re: Support for MultiGet / SQL In clause >> > > >> > > Sriram, >> > > >> > > Would a secondary index help you: >> > > >> > > http://hadoop.apache.org/hbase/docs/r0.20.2/api/org/apache/hadoop/hbase/ >> > > client/tableindexed/package-summary.html#package_description >> > > . >> > > >> > > The index is stored in a separate table, but the index is managed > for >> > > you. >> > > >> > > I don't think you can do an arbitrary "in" query, though. If the > keys >> > > that >> > > you want to include in the "in" are reasonably close neighbors, > you >> > > could do >> > > a scan and skip ones that are uninteresting. You could also try a >> > batch >> > > Get >> > > by applying a separate patch, see >> > > http://issues.apache.org/jira/browse/HBASE-1845. >> > > >> > > Marc Limotte >> > > >> > > On Tue, Jan 19, 2010 at 8:45 AM, Sriram Muthuswamy Chittathoor < >> > > [email protected]> wrote: >> > > >> > > > Is there any support for this. I want to do this >> > > > >> > > > 1. Create a second table to maintain mapping between secondary >> > column >> > > > and the rowid's of the primary table >> > > > >> > > > 2. Use this second table to get the rowid's to lookup from the >> > > primary >> > > > table using a SQL In like clause --- >> > > > >> > > > Basically I am doing this to speed up querying by Non-row key >> > > columns. >> > > > >> > > > Thanks >> > > > >> > > > Sriram C >> > > > >> > > > >> > > > This email is sent for and on behalf of Ivy Comptech Private >> > Limited. >> > > Ivy >> > > > Comptech Private Limited is a limited liability company. >> > > > >> > > > This email and any attachments are confidential, and may be > legally >> > > > privileged and protected by copyright. If you are not the > intended >> > > recipient >> > > > dissemination or copying of this email is prohibited. If you > have >> > > received >> > > > this in error, please notify the sender by replying by email and >> > then >> > > delete >> > > > the email completely from your system. >> > > > Any views or opinions are solely those of the sender. This >> > > communication >> > > > is not intended to form a binding contract on behalf of Ivy > Comptech >> > > Private >> > > > Limited unless expressly indicated to the contrary and properly >> > > authorised. >> > > > Any actions taken on the basis of this email are at the > recipient's >> > > own >> > > > risk. >> > > > >> > > > Registered office: >> > > > Ivy Comptech Private Limited, Cyber Spazio, Road No. 2, Banjara >> > Hills, >> > > > Hyderabad 500 033, Andhra Pradesh, India. Registered number: > 37994. >> > > > Registered in India. A list of members' names is available for >> > > inspection at >> > > > the registered office. >> > > > >> > > > >> > > >> >
