Re: question regarding HBASE-7351

2015-06-24 Thread Arun Mishra
I am guessing that HBASE-7351 won’t work for my case since process won’t be able to read the script from disk. Regards, Arun On Jun 23, 2015, at 9:48 PM, Arun Mishra arunmis...@me.com wrote: Hello, I am using hbase cdh version 0.98.6. I am facing a problem where a disk controller fails

question regarding HBASE-7351

2015-06-23 Thread Arun Mishra
Hello, I am using hbase cdh version 0.98.6. I am facing a problem where a disk controller fails on a host and all disk operation kind of hang up on that host. But region server/data node processes doesn’t die and at the same time the zookeeper session keeps alive. Resulting in all requests to

Query on OutOfOrderScannerNextException

2015-06-06 Thread Arun Mishra
Hello, I have a query on OutOfOrderScannerNextException. I am using hbase 0.98.6 with 45 nodes. I have a mapreduce job which scan 1 table for last 1 day worth data using timerange. It has been running fine for months without any failure. But last couple of days it has been failing with below

Re: Query on OutOfOrderScannerNextException

2015-06-06 Thread Arun Mishra
Thanks TED. Regards, Arun. On Jun 6, 2015, at 2:34 PM, Ted Yu yuzhih...@gmail.com wrote: HBASE-13090 'Progress heartbeats for long running scanners' solves the problem you faced. It is in the 1.1.0 release. FYI On Sat, Jun 6, 2015 at 12:54 PM, Arun Mishra arunmis...@me.com wrote

Re: Query on OutOfOrderScannerNextException

2015-06-06 Thread Arun Mishra
region size will help 3. Smaller hbase.client.scanner.caching will help 4. Larger hbase.client.scanner.timeout.period will help 5. Better data store design (rowkeys) is preferred. Too many options to choose from. -Vlad On Sat, Jun 6, 2015 at 3:04 PM, Arun Mishra arunmis...@me.com wrote

Copy from CDH5 to CDH4

2015-03-30 Thread Arun Mishra
Hello hbase users, I have a requirement to migrate data between CDH4 and CDH5. To migrate data from CDH4 to CDH5, I am using export - distcp - import hbase tools and its very well. But the same doesn't work from CDH5 to CDH4. In mapreduce task logs, I see below exception.

Hbase - hadoop handling DNS blips

2014-08-27 Thread Arun Mishra
Hello, This is the first time I am sending a query on hbase mailing list. Hopefully this is the correct group to ask hbase/hadoop related questions. I am running hbase 0.92, hadoop 2.0 (cdh 4.1.3). Recently, there were some instability in my dns service and host lookups request failed