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75 discussions - 414 posts

  • Hello, I am trying to get Hadoop/HBase up and running in a fully distributed mode. For now, I have only *1 Master & 2 Slaves*. The Hadoop starts correctly.. I think. The only exception I see in ...
    Something SomethingSomething Something
    Dec 4, 2009 at 7:28 am
    Dec 14, 2009 at 7:18 pm
  • Hello, We did lot of tests and now moved to the ubuntu 9.10 for our cluster. Current configuration has 7 nodes (1 master/namenode + 6 regionservers/datanodes + 3 zk). For namenode we have following ...
    Dmitriy LyfarDmitriy Lyfar
    Dec 29, 2009 at 10:14 am
    Jan 21, 2010 at 6:53 pm
  • All, I got my hbase jumpstart with the cloudera RPMs. Cloudera told me the HBase guys created them (im assuming those guys are on list). I have not been able to find the RPMs anywhere besides ...
    Edward CaprioloEdward Capriolo
    Dec 22, 2009 at 5:21 pm
    Dec 27, 2009 at 6:32 pm
  • Hi, Whats the current implementation in hbase 0.20.2 for storing data. MapFile, HFile, TFile. Also any pointers to links explaining the format will be helpful thanks, Kishore G
    Kishore gKishore g
    Dec 16, 2009 at 9:03 pm
    Dec 20, 2009 at 7:52 am
  • Aloha, We're currently investigating HBase (0.20.2) and are really enjoying the experience. We're now curious how much High Availability we should expect. Specifically, after we insert a row into ...
    Seth LaddSeth Ladd
    Dec 11, 2009 at 6:20 pm
    Dec 12, 2009 at 12:32 am
  • Hi All, We are processing a big number of web pages, crawling about 2 million pages from internet everyday. After processed the new data, we save them all. Our current design is: 1. create a temp ...
    Xin JingXin Jing
    Dec 25, 2009 at 7:35 am
    Dec 28, 2009 at 8:32 am
  • I ran into some problems with FilterList and SingleColumnValueFilter. I created a FilterList with MUST_PASS_ONE and two SingleColumnValueFilters (each testing equality on a different columns) and ...
    Paul AmbrosePaul Ambrose
    Dec 15, 2009 at 11:46 pm
    Dec 18, 2009 at 10:42 pm
  • Hey Everyone, I would like to make my HRegion size be smaller so that I can test out how my jobs run when the tables are split up across multiple region servers. Is this something I can set in the ...
    Mark VigeantMark Vigeant
    Dec 21, 2009 at 8:56 pm
    Dec 24, 2009 at 6:45 pm
  • Just wondering if anyone knows of an existing Hbase utility library that is open sourced that can assist those that have Java5 and above. I'm starting off in Hbase, and thinking it'd be great to have ...
    Paul SmithPaul Smith
    Dec 15, 2009 at 3:42 am
    Dec 16, 2009 at 12:28 am
  • Out system admin followed the instruction at http://wiki.apache.org/hadoop/UsingLzoCompression. But I still got the following error when HBase tried to flush the data: ...
    Xueling ShuXueling Shu
    Dec 19, 2009 at 2:33 am
    Dec 21, 2009 at 5:48 pm
  • Hbase crashed on me this weekend, and upon restarting one of the tables is just completely gone. All of the table data is still in HDFS and my missing table is still mentioned in .META.. I tried ...
    Mike andersonMike anderson
    Dec 3, 2009 at 3:29 pm
    Dec 3, 2009 at 10:55 pm
  • Hi, Any one can recognize the following exception am getting when starting hbase and help me fix it: java.io.IOException: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = ...
    Alaa nobaniAlaa nobani
    Dec 31, 2009 at 8:34 am
    Jan 5, 2010 at 10:26 am
  • hi I am trying to start hbase in pseudo-distributed mode but it gives me MasterNotRunning Exception my hbase-site configurations are <configuration <property <name hbase.rootdir</name <value ...
    Muhammad MudassarMuhammad Mudassar
    Dec 31, 2009 at 11:31 am
    Jan 5, 2010 at 3:50 pm
  • Hi there: I tried to populate data into a table. HBase is set up in a single node mode. Things started fine until 5 mins after the data population started. Here is the exception: Exception in thread ...
    Xueling ShuXueling Shu
    Dec 17, 2009 at 10:38 pm
    Dec 18, 2009 at 9:07 pm
  • Hi all, I want to change the column family property for a existing hbase table. Setting one comlumn family COMPRESSION from 'none' to comress, and chagne one column family IN_MEMORY from 'false' to ...
    Xin JingXin Jing
    Dec 15, 2009 at 5:58 am
    Dec 18, 2009 at 6:50 pm
  • All, I have created cacti graphs for all the JMX exported variables with HBase. HBase 20.2 - RegionServer - Atomic Incr HBase 20.2 - RegionServer - BlockCache HBase 20.2 - RegionServer - BlockCache ...
    Edward CaprioloEdward Capriolo
    Dec 13, 2009 at 3:10 am
    Dec 14, 2009 at 8:19 pm
  • HI all, I create a new ResultScanner like this ; ResultScanner scanner=table.getScanner(new Scan()); So the default scan will scan all the families. But now I just want to only retrieval the row ...
    Jeff ZhangJeff Zhang
    Dec 8, 2009 at 7:41 am
    Dec 9, 2009 at 4:07 pm
  • Hello, I am playing around with Hbase and the Stargate interface; I got a problem when I came back from lunch which rendered my little test rig unavailable and I had to restart it. I'm running a ...
    Gibbon, Robert, VF-GroupGibbon, Robert, VF-Group
    Dec 23, 2009 at 2:01 pm
    Dec 23, 2009 at 5:53 pm
  • Hi, The startRow and endRow of Scan doesn't work when use HBase mapreduce. The job always scans the entire table. Is there any reason for this or I misuse? Example code: Scan scan = new Scan(); ...
    Dec 23, 2009 at 7:47 am
    Dec 23, 2009 at 11:29 am
  • Hi, I use the script loadtable.rb to load my hfiles into hbase, but I got an exception as below. Does anyone have any suggestions? 09/12/17 23:59:33 INFO loadtable: 18 read firstkey of ...
    Dec 18, 2009 at 5:46 am
    Dec 21, 2009 at 4:37 pm
  • Hello, I wrote a couple of MapReduce programs that take about **32 minutes** to complete on my local machine in a psuedo distributed mode. The input file has about 1 million rows. I created a cluster ...
    Something SomethingSomething Something
    Dec 13, 2009 at 6:11 pm
    Dec 15, 2009 at 7:22 pm
  • Hey all, I have been doing some performance evaluation with mysql vs hbase. I have a table webtable {NAME = 'webdata', FAMILIES = [{NAME = 'anchor', COMPRESSION = 'NONE', VERSIONS = '3', TTL = ...
    Edward CaprioloEdward Capriolo
    Dec 8, 2009 at 8:25 pm
    Dec 10, 2009 at 9:07 pm
  • I'm trying to startup a quorum of Zookeeper servers in a cluster, however, Zookeeper is failing to start because it cannot find its hostname in the list of Zookeeper quorum servers. I know this ...
    Richard DormanRichard Dorman
    Dec 7, 2009 at 9:14 am
    Dec 8, 2009 at 7:24 am
  • Hi, I¹m having problems doing client operations when my table is large. I did an initial test like this: 6 servers 6 GB heap size per server 20 million 1K recs (so ~3 GB per server) I was able to do ...
    Adam SilbersteinAdam Silberstein
    Dec 5, 2009 at 11:32 pm
    Dec 7, 2009 at 7:56 pm
  • Hi, when my regionservers try to connect, I keep getting a zookeeper timeout. on the server zookeeper is running i get this error on the zookeeper log 2009-12-03 13:50:18,415 WARN ...
    Ananth T. SarathyAnanth T. Sarathy
    Dec 3, 2009 at 6:52 pm
    Dec 3, 2009 at 7:45 pm
  • Hi, I've just started with Hbase (0.20.2), I install it on cloudera image according to http://www.larsgeorge.com/2009/11/hbase-on-cloudera-training-virtual.html , hbase installed correctly I made ...
    Krzysztof SopyłaKrzysztof Sopyła
    Dec 21, 2009 at 8:18 pm
    Dec 26, 2009 at 5:34 pm
  • We have seen the following HADOOP error occur about 100 times a day spread out thoughout the day on each RegionServer/DataNode in our always-on HBase/Hadoop cluster. *2009-12-23* *09:58:29*,*717* ...
    Ken WeinerKen Weiner
    Dec 23, 2009 at 7:10 pm
    Dec 24, 2009 at 1:39 am
  • Hi, Could anyone help me know what cause the following exception. it says that the regionserver class am using in my habse-site.xml cnfig is missing, the config part am using is: ... <property <name ...
    Dec 22, 2009 at 11:03 am
    Dec 23, 2009 at 12:33 pm
  • We're running a 13 node HBase cluster. We had some problems a week ago with it being overloaded and errors related to not being able to find a block on HDFS, but adding four more nodes and increasing ...
    Kevin PetersonKevin Peterson
    Dec 15, 2009 at 6:35 pm
    Dec 17, 2009 at 6:54 pm
  • Hello! I'm new in Hbase and misunderstand some things. Configuration: 3 Ubuntu 9.10 (ip6 off) servers (srv1, srv2, srv3) Hbase 20.2 HadoopCore 20.1 Servers are connected with Gigabit Ethernet switch ...
    Ruslan usifovRuslan usifov
    Dec 11, 2009 at 7:48 pm
    Dec 12, 2009 at 1:42 am
  • Hi all! Can someone tell me if tasktracker and jobtracker are required by hbase for running? We are trying to minimize memory consumption due to sharing machines for dataNodes/regions servers with ...
    Michał PodsiadłowskiMichał Podsiadłowski
    Dec 11, 2009 at 10:05 am
    Dec 11, 2009 at 6:16 pm
  • Hi, I wrote some simple client code to parse scan results, and it seems to be causing heavy CPU usage on my machine. I¹ve commented out most of my code, and have this left: ResultScanner scanner = ...
    Adam SilbersteinAdam Silberstein
    Dec 18, 2009 at 5:37 am
    Dec 21, 2009 at 9:51 pm
  • Hi there: I followed the tutorial and set up a standalone environment, but then experienced some problems. 1. Whenever I executed "start-hbase.sh", an exception will be thrown. The server can still ...
    Xueling ShuXueling Shu
    Dec 17, 2009 at 6:44 pm
    Dec 17, 2009 at 11:37 pm
  • Hello All, In my own application, I have a unit test case which extends HBaseClusterTestCase in order to test some of my operation over HBase cluster. I override the setup function in my own test ...
    Guohua HaoGuohua Hao
    Dec 15, 2009 at 6:58 am
    Dec 15, 2009 at 7:44 pm
  • *Hallo, can you please help me, I am getting the exception ScannerTimeoutException. **I-My Network:* I have 6 machines running hadoop 0.19.1 and hbase 0.19.3 *II-My Program:* I have an hbase table ...
    Xine JarXine Jar
    Dec 9, 2009 at 5:40 pm
    Dec 10, 2009 at 1:16 pm
  • HI: All Can we alter table name in hbase? -- Best Regards Anty Rao
    Dec 3, 2009 at 2:24 pm
    Dec 9, 2009 at 7:20 am
  • List, I am interested in pulling the HBASE metrics with JMX. I notice one quick thing. Like hadoop-env hbase.env should have environment variables that allow setting options per daemon. Also I have ...
    Edward CaprioloEdward Capriolo
    Dec 8, 2009 at 2:53 pm
    Dec 8, 2009 at 4:14 pm
  • Hello Hbase users, I tried to write a jython 2.5.1 hbase client on 0.20.2 but get a zookeeper exception (following the wiki http://wiki.apache.org/hadoop/Hbase/Jython) Traceback (most recent call ...
    Tux RacerTux Racer
    Dec 2, 2009 at 3:59 pm
    Dec 7, 2009 at 9:34 pm
  • Hey- I was running a write-intensive job overnight and when I checked in this morning it had taken longer than I anticipated so I looked at the logs and found that ZooKeeper had a brief disconnection ...
    Mark VigeantMark Vigeant
    Dec 2, 2009 at 3:23 pm
    Dec 2, 2009 at 5:00 pm
  • Hi there, I don't know how to use ColumnValueFilter in hbase-0.20.2 to read some rows through my built Secondary Index. Any suggestions or samples? public static void ...
    Dec 16, 2009 at 8:27 am
    Dec 17, 2009 at 6:29 pm
  • Hi all, I am a newbie in HBase usage. I am wondering whether I can monitor the live status of HBase while it works. Since sometimes I found hbase is toooo slow against my expectation, I want to know ...
    Xin JingXin Jing
    Dec 14, 2009 at 9:48 am
    Dec 14, 2009 at 1:29 pm
  • Hi all! Sorry for duplicating message from hadoop list but I think not all of you are reading that one and I really need to know your opinion. I have been recently experimenting with hadoop and hbase ...
    Michał PodsiadłowskiMichał Podsiadłowski
    Dec 10, 2009 at 11:26 pm
    Dec 11, 2009 at 12:06 am
  • Hello Hbase Users, I am reading the client API documentation and googling the Hbase users list: it seems there is no way to create a scanner that will scan keys in the reverse order. Has the ...
    Tux RacerTux Racer
    Dec 10, 2009 at 8:50 am
    Dec 10, 2009 at 6:33 pm
  • I have spend some time writing an app to load random data into HBASE and record the performance from proof of concept type work. My table definition: //create 'webdata', {NAME = 'image'},{NAME = ...
    Edward CaprioloEdward Capriolo
    Dec 7, 2009 at 8:55 pm
    Dec 8, 2009 at 4:54 am
  • Hello, After upgrading HBase from 0.20.0 to 0.20.2 I am getting following error message: java.lang.reflect.UndeclaredThrowableException at $Proxy2.getRegionInfo(Unknown Source) at ...
    Something SomethingSomething Something
    Dec 2, 2009 at 6:10 pm
    Dec 2, 2009 at 7:51 pm
  • Hi, I built hadoop(0.20.1)+hbase(0.20.1) cluster structure(Master x 1, Slave x 4). And I tried following process to verify the behavior during system failure.Shut down one of the slave server, and ...
    Dec 29, 2009 at 4:03 am
    Dec 30, 2009 at 11:21 am
  • Hi, I would like to set up hbase and zookeeper (I know hbase uses zookeeper but i need to use it also in my app) on 2 servers (for evaluetion purposes) one will act as a server and a client and the ...
    Dec 22, 2009 at 4:00 pm
    Dec 22, 2009 at 7:18 pm
  • The docs for Get.setFilter() say that "Only Filter.filterKeyValue(KeyValue) is called AFTER all tests for ttl, column match, deletes and max versions have been run." The docs for Filter.filterRow() ...
    Paul AmbrosePaul Ambrose
    Dec 22, 2009 at 12:14 am
    Dec 22, 2009 at 12:37 am
  • I have a question about schema creation. If my understanding is correct, HBase is a NoSQL database which according to Wikipedia is "Data stores that may not require fixed table schemas, and usually ...
    Aryeh BerkowitzAryeh Berkowitz
    Dec 17, 2009 at 1:49 pm
    Dec 17, 2009 at 2:00 pm
  • Hi, I¹m currently doing some tests comparing 2 use cases: 6 servers 2400 ops per second from 100 clients Enough ops total to take 30 minutes (2400 * 60 * 30) 120 million 1KB records to start Case A: ...
    Adam SilbersteinAdam Silberstein
    Dec 16, 2009 at 3:53 pm
    Dec 17, 2009 at 1:20 am
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83 users for December 2009

Stack: 57 posts Jean-Daniel Cryans: 37 posts Andrew Purtell: 33 posts Edward Capriolo: 23 posts Something Something: 20 posts Lars George: 18 posts Patrick Hunt: 14 posts Ryan Rawson: 11 posts Xueling Shu: 11 posts Mark Vigeant: 10 posts Xin Jing: 10 posts Jeff Zhang: 9 posts Seth Ladd: 7 posts Vaibhav Puranik: 7 posts Michał Podsiadłowski: 6 posts Mike anderson: 6 posts Paul Ambrose: 6 posts Y_823910: 5 posts Adam Silberstein: 5 posts Gary Helmling: 5 posts
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