Jason:
Do the logs tell you anything Jason? Anything in the .out output
files? How many rows approximately? Looks like you have two regions
going by the listing below. These are probably the catalog -ROOT- and
.META. regions. Can you enable DEBUG and reload your tables? (See
http://wiki.apache.org/hadoop/Hbase/FAQ#5 for how). Send us over the
logs. Have you upped your file descriptors ulmit above 1024?
St.Ack
Jason Sheldon wrote:
Hi
I am running a multi-node cluster:-
HBase Version 0.1.2, r654321 HBase version and svn revision
HBase Compiled Wed May 7 16:52:05 PDT 2008, stack When HBase
version was compiled and by whom
Hadoop Version 0.16.3, r647354 Hadoop version and svn revision
Hadoop Compiled Fri Apr 11 23:58:10 UTC 2008, hadoopqa When
Hadoop version was compiled and by whom
Filesystem hdfs://10.211.55.7:9000/hbase Filesystem HBase is
running on
HBase Root Directory hdfs://10.211.55.7:9000/hbase Location of
HBase home directory
Online META Regions
Name Server
-ROOT- 10.211.55.4:60020
.META.,,1 10.211.55.6:60020
Tables
Name Descriptor
Users name: Users, families: {firstname:={name: firstname, max
versions: 3, compression: NONE, in memory: false, max length:
2147483647, bloom filter: none}, id:={name: id, max versions: 3,
compression: NONE, in memory: false, max length: 2147483647, bloom
filter: none}, surname:={name: surname, max versions: 3, compression:
NONE, in memory: false, max length: 2147483647, bloom filter: none}}
1 table(s) in set.
Region Servers
Address Start Code Load
10.211.55.5:60020 1210658749423 requests: 0 regions: 0
10.211.55.6:60020 1210658749320 requests: 0 regions: 1
10.211.55.3:60020 1210658749111 requests: 0 regions: 0
10.211.55.4:60020 1210658749070 requests: 4 regions: 1
Total: servers: 4 requests: 4 regions: 2
My regions keep going down it seems for some reason.
In my hbase-site.xml I have
<configuration>
<property>
<name>hbase.master</name>
<value>10.211.55.7:60000</value>
<description>The host and port that the HBase master runs at.
</description>
</property>
<property>
<name>hbase.rootdir</name>
<value>hdfs://10.211.55.7:9000/hbase</value>
<description>The directory shared by region servers.
</description>
</property>
</configuration>
I keep getting the exception doing different things eg using hql in
shell to do the query or using API commands from a test java client.
The first time I create the table I can get at the data thereafter it
goes offline or so it seems
On 12 May 2008, at 20:05, Jim R. Wilson wrote:
Are you running a single-node cluster, or multi-node? Also, what is
your `hbase.master` property set to in your conf/hbase-site.xml? I'm
curious whether your region server is being run within the same
process as the master.
Finally, did you do anything else prior to running that query, such as
deleting and recreating the table, or issuing a "DELETE * FROM
tablename"? Dropping a table or deleting all rows therefrom has been
known to make regions go offline.
-- Jim R. Wilson (jimbojw)
On Mon, May 12, 2008 at 4:46 AM, Jason Sheldon <[EMAIL PROTECTED]>
wrote:
Hi
I just got my hbase running and did a create for a very simple table
just
to familiarise myself. It contains name,surname and a few arbitrary
columns;
When I go into hbase shell and type
select * from UserTable where row='1';
I get
INFO hbase.HTable: Creating scanner over User starting at key
org.apache.hadoop.hbase.NotServingRegionException:
org.apache.hadoop.hbase.NotServingRegionException: User,,1210582227961
at
org.apache.hadoop.hbase.HRegionServer.getRegion(HRegionServer.java:1744)
at
org.apache.hadoop.hbase.HRegionServer.getRegion(HRegionServer.java:1716)
at
org.apache.hadoop.hbase.HRegionServer.openScanner(HRegionServer.java:1585)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:413)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:901)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at
java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at
org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:82)
at
org.apache.hadoop.hbase.HTable$ClientScanner.nextScanner(HTable.java:874)
at
org.apache.hadoop.hbase.HTable$ClientScanner.<init>(HTable.java:817)
at org.apache.hadoop.hbase.HTable.obtainScanner(HTable.java:522)
at org.apache.hadoop.hbase.HTable.obtainScanner(HTable.java:411)
at
org.apache.hadoop.hbase.hql.SelectCommand.scanPrint(SelectCommand.java:219)
at
org.apache.hadoop.hbase.hql.SelectCommand.execute(SelectCommand.java:100)
at
org.apache.hadoop.hbase.hql.HQLClient.executeQuery(HQLClient.java:50)
at org.apache.hadoop.hbase.Shell.main(Shell.java:114)
Jason Sheldon
Platform Engineer
SynthaSite
Web: http://www.synthasite.com
Jason Sheldon
Platform Engineer
SynthaSite
Web: http://www.synthasite.com
