Altering table column family attributes without disabling the table

2013-07-23 Thread techbuddy
Hi, We need to enable replication on a live cluster. However it requires disabling the table and bringing the required column families under the scope of replication as under. disable 'your_table' alter 'your_table', {NAME = 'family_name', REPLICATION_SCOPE = '1'} enable 'your_table' This is

Re: Altering table column family attributes without disabling the table

2013-07-23 Thread techbuddy
Thanks for the reply JD! I came to know about this online schema setting shortly after I made the post. And yes ,I know the hbase.replication needs to be kept set to true. However enabling that on a live cluster is not an issue for as we can do that incrementally one region server at a time after

Re: [Stand alone - distributed mode] HBase master isn't initializing completely

2013-06-30 Thread techbuddy
, if your cluster is starting up. If not, try running the OfflineMetaRepair tool. Also, visit the master and region server logs for more information. On Sat, Jun 29, 2013 at 9:59 PM, abhishek1015 [via Apache HBase] ml-node+s679495n404714...@n3.nabble.com wrote: I am facing same problem. @techbuddy

Help with Selective replication in Hbase

2012-11-16 Thread techbuddy
Hi, I need to be able to selectively replicate the mutations from my master cluster into my backup/slave cluster,based on some application specific policy.In other words I want to suppress replication of certain mutation events, and allow the same only for the rest. The ReplicationSinkService

[Stand alone - distributed mode] HBase master isn't initializing completely

2012-10-11 Thread techbuddy
Hi, I've a standalone Hbase cluster configured in a distributed mode (i.e. the ZK, Master and the RegServer all running in separate JVMs on the same host). The HBase master doesn't seem to be intializing successfully. This has started happening since I encountered the stop-hbase script going

Re: [Programmatic cluster monitoring] How to use the HBase monitoring APIs

2012-10-02 Thread techbuddy
Thanks for clarifying the usage part out Stack! As for programmatic monitoring, I was trying to figure out how to extend the already available metrics capture mechanism (available for Region server and Master server processes) to dump some *custom *metrics into a file (using the

Re: [Programmatic cluster monitoring] How to use the HBase monitoring APIs

2012-10-02 Thread techbuddy
Thanks for that link Otis! This indeed allows completely overriding the default monitoring by Hbase, however what we are looking at really is capturing some additional metrics over and above what the monitoring is already generating. So, we figured a way to achieve that through co-processors as