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[HBASE-13456] Improve HFilePrettyPrinter first hbase:meta region processing - HBase - [issue]
...HFilePrettyPrinter have couple of small issues when -r option is used with hbase:meta region as argument:1. Processing files in oldWals and recovered.edits directories$ hbase org.apache.hado...
http://issues.apache.org/jira/browse/HBASE-13456    Author: Samir Ahmic, 2015-04-17, 22:35
[HBASE-13486] region_status.rb broken with NameError: uninitialized constant IOException - HBase - [issue]
... $ hbase org.jruby.Main region_status.rb2015-04-16 10:59:25,972 WARN  [main] util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java cla...
http://issues.apache.org/jira/browse/HBASE-13486    Author: Samir Ahmic, 2015-04-17, 17:37
[expand - 5 more] - Re: Regionserver won't start - HBase - [mail # user]
...In this case regionserver  process is unable to initialize ShutdownHookthread. To be honest this something that i have rarely seen,  if you areunable to resolve it i suggest new cl...
   Author: Samir Ahmic, 2015-03-26, 15:32
Re: [VOTE] The 1st hbase 0.94.27 release candidate is available for download, vote closes March 26. - HBase - [mail # dev]
...Checked signature and md5.Build as it is.Started pseudo-distributed, loaded data with LoadTestTool, verified data.Did some random snapshot testing(create, clone, restore)Nothing unusual in l...
   Author: Samir Ahmic, 2015-03-25, 09:47
Re: Force remove table - HBase - [mail # user]
...HI Kristoffer,Just removing table data from HDFS will leave hbase in inconsistent state.Yes, you are right you will have to remove table znode from zookeeper to.This is what would i do in yo...
   Author: Samir Ahmic, 2014-10-14, 08:28
[expand - 1 more] - Re: TableInputFormatBase Cannot resolve the host name - HBase - [mail # user]
...Yes. From IP address to name that is reverse DNS lookup. Yes mapreduce willwork but you will see that error in logs.RegardsOn Jun 25, 2014 11:12 AM, "Li Li"  wrote: ...
   Author: Samir Ahmic, 2014-06-25, 09:23
Re: Timeouts during major compaction - HBase - [mail # user]
...Hi,You are definitely experiencing performance degradation cussed by majorcompaction. How big is your write load ? Maybe you should consider todecrease time interval between major compaction...
   Author: Samir Ahmic, 2014-06-17, 12:53
[expand - 1 more] - Re: Regionserver crash - HBase - [mail # user]
...Here is explanation for WALTrailer from source code:   * A trailer that is appended to the end of a properly closed HLog WALfile.   * If missing, this is either a legacy ...
   Author: Samir Ahmic, 2014-06-17, 12:11
Re: Adding a new column family in existing table - HBase - [mail # user]
...Hi Vimal,Check 'alter' command in hbase shell. Run help 'alter' in hbase shell thereis very good explanation for command usage.Regarding impact alter command will change table schema  o...
   Author: Samir Ahmic, 2014-05-30, 08:12
[expand - 1 more] - Re: 答复: meta server hungs ? - HBase - [mail # user]
...There should be exception in regionserver log on  hadoop77/192.168.1.87:60020 above  this one:*********2014-04-29 15:32:28,364 FATAL [regionserver60020]regionserver.HRegionServer: ...
   Author: Samir Ahmic, 2014-05-05, 11:26
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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