Tomb Stone Marker

Hi, I need some clarifications regarding the Tomb Stone Marker . I was wondering where exactly are the tomb stone markers stored when a row is deleted . Are they kept in some memory area and updated in the HFile during minor compaction ? If they are updated in the HFile , then what part of a HF

Re: Tomb Stone Marker

gt; Hi there, > > See 9.7.5.4. KeyValue... > > http://hbase.apache.org/book.html#regions.arch > > Š the tombstone is one of the keytypes. > > > > On 9/9/12 5:21 AM, "Monish r" wrote: > > >Hi, > >I need some clarifications regarding the Tomb

Re: for CDH4.0, where can i find the hbase-default.xml file if using RPM install

Hi, Try rpm -qlp *rpm_file_name.rpm* This will list all files in the rpm , from this u can know where hbase-default.xml is. On Sat, Sep 8, 2012 at 3:16 PM, John Hancock wrote: > Huaxiang, > > This may not be the quickest way to find it, but if it's anywhere in your > system, this command will

Re: Regionservers are dead...How to make them live again

Hi, Try checking the log files of both HDFS ( if it is used ) and HBase to find out why the region server is going down. If possible post the logs , i can have a look at it. On Mon, Sep 10, 2012 at 10:46 AM, iwannaplay games < funnlearnfork...@gmail.com> wrote: > Its weird. > I restarted every

Re: Hbase Clustering

Hi, >From the *jps* status i can see that u have started region server in both the servers *NameNode:* 11578 HMaster 11476 HQuorumPeer 10921 TaskTracker 10246 NameNode 12430 Main 10746 JobTracker 12538 Jps 11798 *HRegionServer* 10618 SecondaryNameNode 10433 DataNode *DataNode:* 2202 NC 10772 Jps

Re: Hbase Clustering

ote: > > please find the attached master & slave hbase logs. > >> On Thu, Sep 20, 2012 at 5:14 PM, Monish r wrote: >> >>> Hi, >>> From the *jps* status i can see that u have started region server in >>> both >>> the servers >>&

Clarification regarding major compaction logic

Hi guys, i would like to clarify the following regarding Major Compaction 1) When TTL is set for a column family and major compaction is triggered by user - Does it act on the region only when *time since last major compaction is > TTL.* * * 2) Does major compaction go through the index of a re

Major Compaction in 0.90.6

Hi guys, I have the following questions in HBASE 0.90.6 1. Does hbase use only one compaction thread to handle both major and minor compaction? 2. If hbase uses multiple compaction threads, which configuration parameter defines the number of compaction threads? 3. After hbase.majorcompaction.int

Re: Major Compaction in 0.90.6

t; Hi Monish, > > Any reason for you to use 0.90.6? It's a pretty old version. Have you > considered moving to a more recent one? > > JM > > 2013/8/19 Monish r > > > Hi guys, > > I have the following questions in HBASE 0.90.6 > > > > 1. Does hbas

Re: Major Compaction in 0.90.6

compaction triggger. Regards, R.Monish On Mon, Aug 19, 2013 at 11:52 PM, Jean-Daniel Cryans wrote: > Inline. > > J-D > > > On Mon, Aug 19, 2013 at 2:48 AM, Monish r wrote: > > > Hi guys, > > I have the following questions in HBASE 0.90.6 > > > > 1.

Re: Hbase schema design help

Hi, U can set the max versions for that table as INTEGER.MAX , so that the records are identified uniquely by means of timestamp ( milliseconds ) in which they are inserted . In hbase each and every cell in the table is indexed so if u have more number of columns , u can store them as a concatena