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[HDFS-3600] DataNode is not responding After throwing java.lang.OutOfMemoryError: Direct buffer memory - HDFS - [issue]
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...Scenario:=========Started NN with four DN'swritten client program such that it will keep on write,append and read dta with 10 thread.After 4 hours ,got OOME.Then DN listed under Dead it's no...
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http://issues.apache.org/jira/browse/HDFS-3600
Author: Brahma Reddy Battula,
2012-08-28, 03:40
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[HDFS-3586] Blocks are not getting replicate even DN's are availble. - HDFS - [issue]
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...Scenario:=========Started four DN's(Say DN1,DN2,DN3 and DN4)writing files with RF=3..formed pipeline with DN1->DN2->DN3.Since DN3 network is very slow.it's not able to send acks.Again ...
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http://issues.apache.org/jira/browse/HDFS-3586
Author: Brahma Reddy Battula,
2012-08-14, 13:12
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overreplicated blocks are not getting removed - HDFS - [mail # user]
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...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 ...
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Author: Brahma Reddy Battula,
2012-08-07, 15:23
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Reg:upgrade from 20.205 to hadoop2 - HDFS - [mail # user]
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...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...
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Author: Brahma Reddy Battula,
2012-07-26, 14:51
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[HDFS-3526] Standy NameNode is entering into Safemode even after HDFS-2914 due to resources low - HDFS - [issue]
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...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...
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http://issues.apache.org/jira/browse/HDFS-3526
Author: Brahma Reddy Battula,
2012-07-26, 06:41
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RE: Starting NameNode with finalize option - HDFS - [mail # user]
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...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...
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Author: Brahma Reddy Battula,
2012-07-24, 15:02
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Starting NameNode with finalize option - HDFS - [mail # user]
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...Hi ALL, Can Anyone tell me when following finalize option will be used. case FINALIZE: { boolean aborted = finalize(conf, true); ...
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Author: Brahma Reddy Battula,
2012-07-24, 13:01
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[HDFS-3605] Block mistakenly marked corrupt during edit log catchup phase of failover - HDFS - [issue]
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...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...
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http://issues.apache.org/jira/browse/HDFS-3605
Author: Brahma Reddy Battula,
2012-07-19, 14:02
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RE: Multiple SLF4J bindings - HDFS - [mail # user]
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...HI Mohammad Tariq, Yes..you are correct.. (i.e Proper configuration and dns resolution is very important in order to get hbase working) _____________________...
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Author: Brahma Reddy Battula,
2012-07-12, 13:16
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RE: Multiple SLF4J bindings - HDFS - [mail # user]
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...Here Hmaster is getting shutdown since NameNode is not available (form foll owing trace). As I told please check Name Node logs..why NameNode was not available? 201...
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Author: Brahma Reddy Battula,
2012-07-12, 13:13
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