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HRegionInfo was null or empty in -ROOT- - HBase - [mail # user]
...Hi all,  This morning I was restarting my HBase cluster, and I'm finding that the region servers start up fine, but master always fails with the following error shown in the web ui: &nb...
   Author: Nichole Treadway, 2011-03-30, 14:21
Expected Times when doing bulk load using importtsv - HBase - [mail # user]
...I have a question about expected times for the importtsv program  My cluster has four nodes. All four machines are datanodes / regionservers / tasktrackers, with one node also acting as...
   Author: Nichole Treadway, 2011-03-24, 15:16
Re: RowKey using importtsv - HBase - [mail # user]
...I ran into this issue as well recently.  Out of the box you can only specify one field as the row key, using HBASE_ROW_KEY as an argument to the importtsv program. I had to create my ow...
   Author: Nichole Treadway, 2011-03-21, 20:35
FileNotFoundException in Reduce step when running importtsv program - HBase - [mail # user]
...Hi all,  I am attempting to bulk load data into HBase using the importtsv program. I have a very wide table (about 200 columns, 2 column families), and right now I'm trying to load in d...
   Author: Nichole Treadway, 2011-03-17, 18:58
Re: HMaster fails to start up, Failed construction of Master exception - HBase - [mail # user]
...Alright, I think I've got it working now. I increased the HBASE_HEAPSIZE value in hbase-env.sh and the HMaster finally started up and it looks like its working as normal now.  I'm not r...
   Author: Nichole Treadway, 2011-03-11, 19:38
Re: HMaster fails to start up, Failed construction of Master exception - HBase - [mail # user]
...Sorry for not including that information in my original email.  Cluster Info: I'm running the hadoop-0.20-append branch and HBase 0.90.1, and java 1.6. All machines are 64-bit running R...
   Author: Nichole Treadway, 2011-03-11, 19:28
HMaster fails to start up, Failed construction of Master exception - HBase - [mail # user]
...Last night I was putting pretty heavy load on my HBase cluster. One of the region servers shut down unexpectedly, and I restarted the regionserver, but HBase still wasn't assigning regions t...
   Author: Nichole Treadway, 2011-03-11, 16:49
Region server getting hit with all requests during bulk import - HBase - [mail # user]
...Hi all,  I have a small Hadoop and HBase cluster with 4 nodes all acting as datanodes and regionservers, with replication set to 3. I am bulk loading data in HBase using the importtsv p...
   Author: Nichole Treadway, 2011-03-10, 17:56
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