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Can ZK be Virtualized in Prod - Zookeeper - [mail # user]
...We run a growing HBase cluster, and use ZK for a couple random other thingsas well. Currently we run ZK on small dedicated servers, but I'd love tomove them to XenServer if the performance i...
   Author: Patrick Schless, 2014-02-10, 20:09
Splitlog Replication - HBase - [mail # user]
...I need to run through some server maintenance on my data nodes, including a reboot. My splitlogs, though, only seem to have a replication factor of 1 (when a data nodes is taken offline, I s...
   Author: Patrick Schless, 2014-01-07, 22:22
[expand - 3 more] - Re: 3-Hour Periodic Network/CPU/Disk/Latency Spikes - HBase - [mail # user]
...Thanks for the tips. I'll play around with this this week and try to get a script that won't affect our performance too bad. I imagine most people do this at off-peak times, but we don't hav...
   Author: Patrick Schless, 2013-12-16, 17:11
[expand - 1 more] - Re: Scanner Caching with wildly varying row widths - HBase - [mail # user]
...Sweet! Thanks for the tip :)   On Mon, Nov 4, 2013 at 5:10 PM, Dhaval Shah wrote:  ...
   Author: Patrick Schless, 2013-11-04, 23:48
[expand - 1 more] - Re: Consultant Wanted - HBase - [mail # user]
...I should mention that I shot an email to Cloudera today, and expect to hear from them soon. It might be that they're the standard go-to for this sort of thing, but I'm wondering if there are...
   Author: Patrick Schless, 2013-11-04, 22:44
ageOfLastAppliedOp, ageOfLastShippedOp - HBase - [mail # user]
...We run two hbase clusters, and one (master) replicates to the other (standby). We did some maintenance last night which involved bringing all of hbase down while we made changes to HDFS. Aft...
   Author: Patrick Schless, 2013-08-23, 19:14
Re: How to recover data from hadoop/hbase cluster - HBase - [mail # user]
...Are you missing data? Replication/recovery of blocks is automatic, and there isn't a manual process to it.  FWIW, for something like changing the hard drive configs on the box, it would...
   Author: Patrick Schless, 2013-08-09, 19:31
[expand - 5 more] - Re: HDFS Restart with Replication - HBase - [mail # user]
...Hi Asaf,  Thanks for the info. I tried this, but it didn't work for me (the region servers never shut down). Any idea how long it should take to pick it up? I let it sit several minutes...
   Author: Patrick Schless, 2013-08-08, 18:48
Fix Borked Replication - HBase - [mail # user]
...I run HBase replication, and while improperly restarting my standby cluster I lost a few splitlog blocks in my replicated table (on the standby cluster).  I'm thinking that my standby t...
   Author: Patrick Schless, 2013-08-08, 16:11
[expand - 1 more] - Re: Cleaning up after failed table rename - HBase - [mail # user]
...Ran that command. It hung on here:  13/08/02 17:29:21 INFO util.HBaseFsck: Attempting to handle orphan hdfs dir: hdfs:// name-node.sea01.staging.tdb.com:8020/hbase/t1/5539903676fa6143cf...
   Author: Patrick Schless, 2013-08-02, 22:31
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