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[HDFS-2951] Block reported as corrupt while running multi threaded client program that performs write and read operation on a set of files - HDFS - [issue]
...Block incorrectly detected as bad in the following scenario:Running multi threaded client program which performs write and read operation on a set of filesOne block detected as bad by DNMult...
http://issues.apache.org/jira/browse/HDFS-2951    Author: J.Andreina, 2014-04-22, 20:20
[HDFS-2734] Even if we configure the property fs.checkpoint.size in both core-site.xml and hdfs-site.xml  the values are not been considered - HDFS - [issue]
...Even if we configure the property fs.checkpoint.size in both core-site.xml and hdfs-site.xml  the values are not been considered...
http://issues.apache.org/jira/browse/HDFS-2734    Author: J.Andreina, 2014-04-22, 16:23
[HDFS-3295] Mismatch in number of bytes already moved and number of bytes being moved in balancer report - HDFS - [issue]
...Scenario:Replication factor = 1,fs.defaultFS=hdfs://namenodeip:port,dfs.namenode.rpc-address=namenodeip:port.step 1: started DN1.Pumped 4.67GB of datastep 2: started DN2.step 3: issued the b...
http://issues.apache.org/jira/browse/HDFS-3295    Author: J.Andreina, 2014-02-25, 02:25
[HDFS-3119] Overreplicated block is not deleted even after the replication factor is reduced after sync follwed by closing that file - HDFS - [issue]
...cluster setup:--------------1NN,2 DN,replication factor 2,block report interval 3sec ,block size-256MBstep1: write a file "filewrite.txt" of size 90bytes with sync(not closed) step2: change ...
http://issues.apache.org/jira/browse/HDFS-3119    Author: J.Andreina, 2013-02-02, 12:40
[HDFS-2963] Console Output is confusing while executing metasave (dfsadmin command) - HDFS - [issue]
...While giving the command ./hdfs dfsadmin -metasave /filenameIn the console the following message is displayed" created file /filename on  server hdfs://ip:port"it is not created as hdfs...
http://issues.apache.org/jira/browse/HDFS-2963    Author: J.Andreina, 2012-08-18, 00:56
[HDFS-3157] Error in deleting block is keep on coming from DN even after the block report and directory scanning has happened - HDFS - [issue]
...Cluster setup:1NN,Three DN(DN1,DN2,DN3),replication factor-2,"dfs.blockreport.intervalMsec" 300,"dfs.datanode.directoryscan.interval" 1step 1: write one file "a.txt" with sync(not closed)ste...
http://issues.apache.org/jira/browse/HDFS-3157    Author: J.Andreina, 2012-07-05, 14:03
[HDFS-3377] While Balancing more than 10 Blocks are being moved from one DN even though the maximum number of blocks to be moved in an iterations is hard coded to 5 - HDFS - [issue]
...Replication factor= 1,block size is default valueStep 1: Start NN,DN1Step 2: Pump 5 GB of data.Step 3: Start DN2 and issue balancer with threshold value 1In the balancer report and the NN lo...
http://issues.apache.org/jira/browse/HDFS-3377    Author: J.Andreina, 2012-06-07, 03:55
[HDFS-3457] Number of UnderReplicated blocks displayed in UI and Fsck report is different - HDFS - [issue]
...Scenario:=========Write an HDFS application with the following sequence of operations1. Create file.2. Append and sync file.3. Delete file.4. Create file.5. Rename file.Run the application u...
http://issues.apache.org/jira/browse/HDFS-3457    Author: J.Andreina, 2012-05-30, 04:30
[HDFS-3356] When dfs.block.size is configured to 0 the block which is created in rbw is never deleted - HDFS - [issue]
...dfs.block.size=0step 1: start NN and DNstep 2: write a file "a.txt"The block is created in rbw and since the blocksize is 0 write fails and the file is not closed. DN sents in the block repo...
http://issues.apache.org/jira/browse/HDFS-3356    Author: J.Andreina, 2012-05-23, 20:24
[HDFS-3407] When "dfs.datanode.directoryscan.interval" is configured to 0 DN get shutdown but when configured to -1/ less than 0 values directory scan is disabled - HDFS - [issue]
...Scenario 1:===========•configure "dfs.datanode.directoryscan.interval"= -1•start NN and DNDirectory scan will be disabled if we configure a value less than zero. write will be successful and...
http://issues.apache.org/jira/browse/HDFS-3407    Author: J.Andreina, 2012-05-23, 20:24
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB