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overreplicated blocks are not getting removed - HDFS - [mail # user]
...Hi All,  I ended up with over-replicated blocks which are not getting deleted..  I did like following..  Started hadoop cluster with three DN's  Written 1k files with RF ...
   Author: Brahma Reddy Battula, 2012-08-07, 15:23
Reg:upgrade from 20.205 to hadoop2 - HDFS - [mail # user]
...Hi All,  I had cluster running with 20.205 version with 1GB data. Then I upgraded to  hadoop2(Upgrade was successful).After up-gradation I am not able to read 1 00 blocks..Then I g...
   Author: Brahma Reddy Battula, 2012-07-26, 14:51
[HDFS-3526] Standy NameNode is entering into Safemode even after HDFS-2914 due to resources low - HDFS - [issue]
...Scenario:=========Start ANN SNN with One DNMake 100% disk full for SNNNow restart SNN..Here SNN is going safemode..But it shouldnot happen according to HDFS-2914...
http://issues.apache.org/jira/browse/HDFS-3526    Author: Brahma Reddy Battula, 2012-07-26, 06:41
RE: Starting NameNode with finalize option - HDFS - [mail # user]
...Hi  I got cause...   I ran like following  ./hadoop daemon.sh start namenode -finalize so logs are redirected to out f ile and i was not able give input(i.e Y or N). That's wh...
   Author: Brahma Reddy Battula, 2012-07-24, 15:02
[HDFS-3605] Block mistakenly marked corrupt during edit log catchup phase of failover - HDFS - [issue]
...Open file for appendWrite data and sync.After next log roll and editlog tailing in standbyNN close the append stream.Call append multiple times on the same file, before next editlog roll.Now...
http://issues.apache.org/jira/browse/HDFS-3605    Author: Brahma Reddy Battula, 2012-07-19, 14:02
RE: Multiple SLF4J bindings - HDFS - [mail # user]
...HI Mohammad Tariq,    Yes..you are correct.. (i.e Proper configuration and dns  resolution is very important in order to get hbase working)     _____________________...
   Author: Brahma Reddy Battula, 2012-07-12, 13:16
[HDFS-3584] Blocks are getting marked as corrupt with append operation under high load. - HDFS - [issue]
...Scenario:========= 1. There are 2 clients cli1 and cli2 cli1 write a file F1 and not closed2. The cli2 will call append on unclosed file and triggers a leaserecovery3. Cli1 is closed4. Lease...
http://issues.apache.org/jira/browse/HDFS-3584    Author: Brahma Reddy Battula, 2012-07-11, 18:12
[HDFS-3387] [Fsshell]It's better to provide hdfs instead of hadoop in GenericOptionsParser - HDFS - [issue]
...Scenario:----------Execute any fsshell command with invalid optionsLike ./hdfs haadmin -transitionToActive...Here it is logging as following..bin/hadoop command [genericOptions] [...
http://issues.apache.org/jira/browse/HDFS-3387    Author: Brahma Reddy Battula, 2012-07-10, 21:52
[HDFS-3415] During NameNode starting up, it may pick wrong storage directory inspector when the layout versions of the storage directories are different - HDFS - [issue]
...Scenario:=========start Namenode and datanode by configuring three storage dir's for namenodewrite 10 filesedit version file of one of the storage dir and give layout version as 123 which di...
http://issues.apache.org/jira/browse/HDFS-3415    Author: Brahma Reddy Battula, 2012-07-10, 21:04
[HDFS-3585] Blocks are getting marked as corrupt when commitblocksyncronization(Since recovery called by another client) is success before BR send - HDFS - [issue]
...Scenario:===========Writing files without closerenaming filedeleting files with four DN's and replication factor=3...
http://issues.apache.org/jira/browse/HDFS-3585    Author: Brahma Reddy Battula, 2012-07-02, 19:51
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