ing i would like to ask is was the cluster brought
down abruptly by killing the RS.
Which version of HBase?
Regards
Ram
On Fri, Apr 12, 2013 at 11:20 AM, Brennon Church
wrote:
Hello,
I had an interesting problem come up recently. We have a few thousand
regions across 8 datanode/regionse
read the data.
Some logs could tell us what made the parent to get reopened rather than
daughters. Another thing i would like to ask is was the cluster brought
down abruptly by killing the RS.
Which version of HBase?
Regards
Ram
On Fri, Apr 12, 2013 at 11:20 AM, Brennon Church wrote
Hello,
I had an interesting problem come up recently. We have a few thousand
regions across 8 datanode/regionservers. I made a change, increasing
the heap size for hadoop from 128M to 2048M which ended up bringing the
cluster to a complete halt after about 1 hour. I reverted back to 128M
a
Everyone,
I recently had a couple compactions, minors that were promoted to
majors, take 8 and 10 minutes each. I eventually killed the
regionserver underneath them as I'd never seen compactions last that
long before. In looking through the logs from the regionserver that was
killed and wat
-Daniel Cryans wrote:
On Thu, Mar 21, 2013 at 6:46 AM, Brennon Church wrote:
Hello all,
As I understand it, a common performance tweak is to disable major
compactions so that you don't end up with storms taking things out at
inconvenient times. I'm thinking that I should just write a
Hello all,
As I understand it, a common performance tweak is to disable major
compactions so that you don't end up with storms taking things out at
inconvenient times. I'm thinking that I should just write a quick
script to rotate through all of our regions, one at a time, and compact
them.
at 9:54 AM, Brennon Church wrote:
Hello,
Is there a way to throttle the speed at which under-replicated blocks are
copied across a cluster? Either limiting the bandwidth or the number of
blocks per time period would work.
I'm currently running Hadoop v1.0.1. I
Hello,
Is there a way to throttle the speed at which under-replicated blocks
are copied across a cluster? Either limiting the bandwidth or the
number of blocks per time period would work.
I'm currently running Hadoop v1.0.1. I think the
dfs.namenode.replication.work.multiplier.per.iteratio
ind a patch which does per table load balancing. You can modify that code
to move regions of selected table to pre-defined group of servers
(specified through configuration).
Cheers
On Fri, Dec 21, 2012 at 11:01 PM, Brennon Church wrote:
I do allow regions from other tables on the newer servers.
up of region servers.
Development for 0.94 is on-going, to my knowledge.
Cheers
On Fri, Dec 21, 2012 at 7:30 PM, Brennon Church wrote:
0.92.0
I was looking at the balancer option. I'm loathe to turn the automatic
balancer off and handle it manually as we have a lot of regions. Is
is no such capability - you may need to customize load
balancer.
What version of HBase are you using ?
Cheers
On Fri, Dec 21, 2012 at 3:54 PM, Brennon Church wrote:
I'm curious, is there any concept of hosting regions from a given table
only on a single host or subset of hosts in a cluste
I'm curious, is there any concept of hosting regions from a given table
only on a single host or subset of hosts in a cluster? In our case we
have a heavily-used table that can cause problems for the older systems
in our cluster. Newer systems would have less trouble, so I'd like to
restrict
Hello,
I had some interesting trouble a couple days ago that I'm trying to track down.
Can anyone help me identify what would have caused the following log entries?
They showed up for about 1 hour, eventually going away without my having done
anything. The last time I see such entries in my
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