+1 pushing to maven repo
Thanks and Regards,
S SYED ABDUL KATHER
On Thu, Oct 18, 2012 at 10:32 PM, lars hofhansl lhofha...@yahoo.com wrote:
I'm on it. :)
- Original Message -
From: Amit Sela am...@infolinks.com
To: user@hbase.apache.org
Cc:
Sent: Thursday,
dear,hua
i don't know
2012-10-19
Kind regards,
Xu Jingang(徐金刚)
Mobile: +86-18651865779
Email:jingan...@gmail.com
发件人：hua xiang
发送时间：2012-10-19 14:13
主题：thrift usage
收件人：user@hbase.apache.orguser@hbase.apache.org
抄送：
HI,
where is the interface of thrift, which is installed
Hi, hbase-users.
To get a start-key and end-key from each region, I implemented simple code like
this.
HTable table = new HTable(admin.getConf(), admin.getTableName());
NavigableMapHRegionInfo, ServerName locations =
table.getRegionLocations();
for
Can you tell me how the splitkeys are formed when the table was created?
Or there are no splits at all for your table? If there are no splits then
you will get empty start and endkey.
Regards
Ram
-Original Message-
From: Henry JunYoung KIM [mailto:henry.jy...@gmail.com]
Sent:
Actually how many regions in your table?
Only one region? In that case it will be having startkey and endkey as empty..
So your case what it prints looks to be correct.
-Anoop-
From: Henry JunYoung KIM [henry.jy...@gmail.com]
Sent: Friday, October 19,
yes, right ;)
currently, I have just a single region.
in this case, to get a start-key and and end-key, I need to use just a scanner.
right?
2012. 10. 19., 오후 5:51, Ramkrishna.S.Vasudevan
ramkrishna.vasude...@huawei.com 작성:
Can you tell me how the splitkeys are formed when the table was
What is your need? You want to scan the rows i.e data in the table?
Or you want to start and endkeys. Actually for single region just empty
bytes represent the start and endkey. So am not getting what you want from
that.
If you want data then create a scan object for the table and do a scan :)
Hey Hua,
The RPM (I'm assuming you speak of Apache Bigtop and Bigtop-derived
packages) does not seem to include this file anywhere. I filed
https://issues.apache.org/jira/browse/BIGTOP-756 to address that.
On Fri, Oct 19, 2012 at 11:43 AM, hua xiang adam_...@yahoo.com wrote:
HI,
where is
I'm still having several issues with my cluster. This used to all
work, and there have been no recent configuration changes.
To recap, Master and regionservers all appear to start successfully,
but several regionservers do not show as online on Hbase master status
page. Moreover, there appear to
As long as you know your keyspace, you should be able to create your own
splits. See TableInputFormatBase for the default implementation (which is
1 input split per region)
On 10/19/12 9:32 AM, Eric Czech eczec...@gmail.com wrote:
Hi everyone,
Is there any way to create an InputSplit for
Hi HBase community:
I have a few questions on the usage of Scanner via REST API:
- From the XML schema (
http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/rest/package-summary.html#xmlschema),
we can set the maximum number of values to return for each call to next()
by specifying the batch
Outch...
That could get very nasty. You may end up with a lot of uneven splits.
Suppose your 'metric1' spans 3 regions, 'metric2' 1 but its still in the same
split as 'metric1' and then 'metric3' is in two regions, 'metric4' is in two
regions where its split between the end of 'metric3' and
Hi all,
I mistakenly execution major compaction on the entire table instead of
region by region. It is causing so much delay in the write performance,
also on the disk and networkI/O. How can i stop major compaction now ?
Thanks
Kiran
On Thu, Oct 18, 2012 at 2:55 PM, Ramkrishna.S.Vasudevan
Kiran,
I don't believe you can. If you have a sane region count/region size it
should be over soon.
On Fri, Oct 19, 2012 at 11:37 AM, kiran kiran.sarvabho...@gmail.com wrote:
Hi all,
I mistakenly execution major compaction on the entire table instead of
region by region. It is causing
It worked. :)
On Thu, Oct 18, 2012 at 10:54 PM, Ramkrishna.S.Vasudevan
ramkrishna.vasude...@huawei.com wrote:
Ok Anil.. Not a problem.. My intention was to just see if the api was
working during createtable so that it will help you.
Regards
Ram
-Original Message-
From: anil
Kevin,
Thanks for your reply,
can restarting region servers help to kill the already existing compaction
processes in region servers..
Thanks
Kiran
On Fri, Oct 19, 2012 at 9:16 PM, Kevin O'dell kevin.od...@cloudera.comwrote:
Kiran,
I don't believe you can. If you have a sane region
You could just disable then enable the table.
J-D
On Fri, Oct 19, 2012 at 9:10 AM, kiran kiran.sarvabho...@gmail.com wrote:
Kevin,
Thanks for your reply,
can restarting region servers help to kill the already existing compaction
processes in region servers..
Thanks
Kiran
On Fri, Oct
That config is only available in trunk (per
https://issues.apache.org/jira/browse/HBASE-6170), are you using a
trunk snapshot?
J-D
On Thu, Oct 18, 2012 at 8:25 AM, Bai Shen baishen.li...@gmail.com wrote:
I've set hbase.client.scanner.timeout.period on my client to 30, but
I'm still getting
Can you try like this. Just stop your cluster. Start one Master and
RegionServer. May be for temporarily just have one ZK to which the master
and RS is able to connect.
After this is done, just see on the master UI whether the ROOT and META
table got assigned? means you can see in the MASTER UI
Well it looks like I might be able to make it work in TableInputFormatBase
if I parse the start and end keys and add the logic there (thanks Doug).
I definitely want to avoid the reduce step and since I am storing
timeseries data, I can probably just live without putting any part of the
date in
Here is some more background information from
https://issues.apache.org/jira/browse/HBASE-6962 :
hadoop 1.1 release annoucement:
http://search-hadoop.com/m/0eTo41c8GSb
The thinking behind new recommendation is that future patches for reducing
MTTR may depend on the improvement unique to hadoop
Hi Dan
I can check this in some time and see what is the problem. I can try helping
you as far as possible.
RegardsRam
From: ramkrishna.vasude...@huawei.com
To: ram_krish...@hotmail.com
Subject: FW: Follow-up to regionservers not being online - more logs included
Date: Fri, 19 Oct 2012
Hi, hbase-users.
To get a start-key and end-key from each region, I implemented simple code like
this.
HTable table = new HTable(admin.getConf(), admin.getTableName());
NavigableMapHRegionInfo, ServerName locations =
table.getRegionLocations();
for
Which HBase version are you using ?
How many regions are there for the underlying table ?
Thanks
On Fri, Oct 19, 2012 at 1:36 AM, JUN YOUNG KIM juneng...@me.com wrote:
Hi, hbase-users.
To get a start-key and end-key from each region, I implemented simple code
like this.
HTable
Hi Lars,
We are following your suggestion and testing against a single region
server. We just ran a test against a remote region server and soon we will
test against a local one as well. We will get back to you soon with the
results.
It will take us a couple of days to port to and test our code
Also, I hope no coprocessors are in play.
Thanks,
Abhishek
-Original Message-
From: Yousuf Ahmad [mailto:myahm...@gmail.com]
Sent: Friday, October 19, 2012 10:12 AM
To: user@hbase.apache.org
Cc: Ivan Brondino; Ricardo Vilaça
Subject: Re: High IPC Latency
Hi Lars,
We are following
On Thu, Oct 18, 2012 at 7:13 PM, Norbert Burger
norbert.bur...@gmail.com wrote:
We had the same question earlier. Unfortunately the documentation is
wrong on this account; scannerOpen resolves to either a call to
scan.addFamily or scan.addColumn, and neither directly supports regex
matching.
Here is the hbase shell command which works, I am not able to get these
results using curl/stargate.
scan 'apachelogs', { COLUMNS = 'mylog:pcol', FILTER =
SingleColumnValueFilter('mylog','pcol', =, 'regexstring: ERROR
x.') }
Here is the curl command which does not work:
curl -v -H
Hi Suresh:
Have you tried to create a scanner without the filter? Does it return
errors as well?
Best Regards,
Jerry
On Fri, Oct 19, 2012 at 1:16 PM, Kumar, Suresh suresh.kum...@emc.comwrote:
Here is the hbase shell command which works, I am not able to get these
results using
Hi Jerry,
Is there a way to set the number of rows for caching that will be passed
to scanners (setCaching)?
No.
Scanners on the REST server will use the default value for setCaching
provided in the hbase-site.xml deployed for the REST server. Overriding it
hasn't been considered a good idea
That's a good suggestion. Additionally, if you run the REST server at DEBUG
level logging there may be additional clues in the log.
On Fri, Oct 19, 2012 at 10:54 AM, Jerry Lam chiling...@gmail.com wrote:
Hi Suresh:
Have you tried to create a scanner without the filter? Does it return
errors
No coprocessors :-)
On Oct 19, 2012 1:21 PM, Pamecha, Abhishek apame...@x.com wrote:
Also, I hope no coprocessors are in play.
Thanks,
Abhishek
-Original Message-
From: Yousuf Ahmad [mailto:myahm...@gmail.com]
Sent: Friday, October 19, 2012 10:12 AM
To: user@hbase.apache.org
curl -v -H Content-Type: text/xml -d 'Scanner/'
http://localhost:8080/apachelogs/scanner/
returns a Location URL which returns all the data, if I send the filter,
I do not get errors, I
just don't get any data (204 No content) from the location URL.
Let me try turning on DEBUG at the REST
Hi, Anoop and Ram,
As I have coded the idea, the detailed instructions are very helpful. One
minor thing to add is that coming out from scanner are the KeyValues which are
already sorted by column qualifier and time stamps. though i did not find it
mentioned in java doc, but i found it very
Jon:
Welcome to the club.
I am having a very bad experience using thrift (python) and REST
(stargate) with filters.
Filters work well with a Java client, but no luck with thrift or REST.
Good luck,
Suresh
-Original Message-
From: Jonathan Bishop [mailto:jbishop@gmail.com]
Yes, it is fair to say that because filters have been evolving at a
different rate than either the Thrift or REST gateway, the first class
support for filters is the Java client. I would expect this to be addressed
in subsequent releases as we near 1.0 and of course patches are always
welcome.
On
Thanks for the update Andrew. I'll keep an eye out for updates.
Jon
On Fri, Oct 19, 2012 at 4:39 PM, Andrew Purtell apurt...@apache.org wrote:
Yes, it is fair to say that because filters have been evolving at a
different rate than either the Thrift or REST gateway, the first class
support
Here are a few of my thoughts:
If possible, you might want to localize your data to a few regions if you can
and then may be have exclusive access to those regions. This way, external load
will not impact you. I have heard that write penalty of SSDs is quite high.
But I think, they will still
Answers inline
On Fri, Oct 19, 2012 at 4:31 PM, Dave Latham lat...@davelink.net wrote:
I need to scale an internal service / datastore that is currently hosted on
an HBase cluster and wanted to ask for advice from anyone out there who may
have some to share. The service does simple key value
Thanks Ian! Very helpful breakdown.
For this use case, I think the multi-version row structure is ruled out.
We will investigate the onekey-manycolumn approach. Also, the more I study
the mechanics behind a SCAN vs GET, the more I believe the informal test I
did is inaccurate. What does
On Fri, Oct 19, 2012 at 3:56 PM, Jonathan Bishop jbishop@gmail.com wrote:
Hi,
Taking a look at the thrift interface to hbase and I am having a hard time
finding any way to set the filterString for scans. Anyone know how to do
this?
What have you tried?
St.Ack
What Amandeep said, and also:
You said your working set is randomly distributed but, if frequent
invalidation isn't a concern and read accesses are still clustered
temporally, an in-memory cache out in front of the cluster would smooth
over periods when the disks are busy servicing MR workload or
Hmm... Probably not the best idea then.
I'll just bump the default to 1.0.4.
- Original Message -
From: Ted Yu yuzhih...@gmail.com
To: d...@hbase.apache.org; user@hbase.apache.org
Cc: lars hofhansl lhofha...@yahoo.com
Sent: Friday, October 19, 2012 9:29 AM
Subject: Re: [DISCUSS] Default
Yes the KVs coming out from your delegate Scanner will be in sorted form..
Also with all other logic applied like removing TTL expired data, handling
max versions etc.. Thanks for updating..
-Anoop-
On Sat, Oct 20, 2012 at 1:11 AM, PG pengyunm...@gmail.com wrote:
Hi, Anoop and Ram,
As I have
Hi
Always any KV that comes from scanning are sorted lexographically and the
recent timestamps will come out first.
So even if your data writes col qualifier c2 first and then c1 because of
lexographical ordering c1 will be coming first. Also recent versions of a
row will be coming out first and
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