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[HDFS-7414] Namenode got shutdown and can't recover where edit update might be missed - HDFS - [issue]
...Scenario:========Was running mapreduce job.CPU usage crossed 190% for Datanode and machine became slow..and seen the following exception ..  Did not get the exact root cause, but as cpu...
http://issues.apache.org/jira/browse/HDFS-7414    Author: Brahma Reddy Battula, 2015-02-09, 04:41
[HDFS-7377] [ DataNode Web UI ] Metric page will not display anything.. - HDFS - [issue]
...Scenario :======Go to http://<DN_IP>:<http port>/dataNodeHome.jspand click on metrics link..we will not able to see any thing..Did not find reason..do we need to implent metric p...
http://issues.apache.org/jira/browse/HDFS-7377    Author: Brahma Reddy Battula, 2015-02-07, 17:21
[HDFS-7739] ZKFC - transitionToActive is indefinitely waiting to complete fenceOldActive - HDFS - [issue]
...Scenario: One of the cluster disk got full and ZKFC making tranisionToAcitve ,To fence old active node it needs to execute the command and wait for tge result, since disk got full, strempump...
http://issues.apache.org/jira/browse/HDFS-7739    Author: Brahma Reddy Battula, 2015-02-05, 14:37
[HDFS-7651] [ NN Bench ] nnbench cant accept  var by"-D"´╝îbecause class NNBench does not "extends Configured implements Tool" - HDFS - [issue]
...public class NNBench {  private static final Log LOG = LogFactory.getLog(          "org.apache.hadoop.hdfs.NNBench");...
http://issues.apache.org/jira/browse/HDFS-7651    Author: Brahma Reddy Battula, 2015-01-21, 08:13
[HDFS-3361] read(long position, byte[] buffer, int offset, int length) is not  behaving as expected - HDFS - [issue]
...Start NN and DNwrite a file with size 1024now try to read file using following apifsin.read(writeBuff, 1024, fsin.available())..This is retuning correctly as expected.fsin.read(10, writeBuff...
http://issues.apache.org/jira/browse/HDFS-3361    Author: Brahma Reddy Battula, 2014-12-26, 09:13
[HDFS-7452] Can we skip getCorruptFiles() call for standby NameNode..? - HDFS - [issue]
...Seen following warns logs from StandBy Namenode logs ..2014-11-27 17:50:32,497 | WARN  | 512264920@qtp-429668078-606 | Get corrupt file blocks returned error: Operation category READ is...
http://issues.apache.org/jira/browse/HDFS-7452    Author: Brahma Reddy Battula, 2014-12-08, 16:31
[HDFS-7487] NPE in MetricsSourceAdapter - HDFS - [issue]
...Caused by: java.lang.NullPointerException at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateAttrCache(MetricsSourceAdapter.java:247) at org.apache.hadoop.metrics2.impl.MetricsSou...
http://issues.apache.org/jira/browse/HDFS-7487    Author: Brahma Reddy Battula, 2014-12-08, 11:36
[HDFS-2892] Some of property descriptions are not given(hdfs-default.xml) - HDFS - [issue]
...Hi..I taken 23.0 release form http://hadoop.apache.org/common/releases.html#11+Nov%2C+2011%3A+release+0.23.0+availableI just gone through all properties provided in the hdfs-default.xml..Som...
http://issues.apache.org/jira/browse/HDFS-2892    Author: Brahma Reddy Battula, 2014-11-30, 12:01
[HDFS-3398] Client will not retry when primaryDN is down once it's just got pipeline - HDFS - [issue]
...Scenario:=========Start NN and three DN"SGet the datanode to which blocks has to be replicated.from nodes = nextBlockOutputStream(src);Before start writing to the DN ,kill the primary DN.// ...
http://issues.apache.org/jira/browse/HDFS-3398    Author: Brahma Reddy Battula, 2014-09-04, 01:59
[HDFS-3744] Decommissioned nodes are included in cluster after switch which is not expected - HDFS - [issue]
...Scenario:=========Start ANN and SNN with three DN'sExclude DN1 from cluster by using decommission feature (./hdfs dfsadmin -fs hdfs://ANNIP:8020 -refreshNodes)After decommission successful,d...
http://issues.apache.org/jira/browse/HDFS-3744    Author: Brahma Reddy Battula, 2014-07-16, 09:01
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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