Hi,
I am pleased to announce the TAggregator [
https://github.com/juwi/HBase-TAggregator].
It is a coprocessor capable of returning an interval based map of
aggregates.
So far it supports max,min,avg and sum.
It can handle timestamps embedded in the key (as integers) or, as an
alternative
Sweet. Thanks for posting notice here Julian. Add TAggregator here
http://wiki.apache.org/hadoop/SupportingProjects ? (Make yourself a login
and tell me what it is offlist and I'll give you edit rights).
Thanks,
St.Ack
On Tue, Nov 11, 2014 at 5:10 AM, Julian Wissmann julianwissm...@gmail.com
nvm. I just added it myself. Let me know if you'd like me change
description.
St.Ack
On Tue, Nov 11, 2014 at 7:23 AM, Stack st...@duboce.net wrote:
Sweet. Thanks for posting notice here Julian. Add TAggregator here
http://wiki.apache.org/hadoop/SupportingProjects ? (Make yourself a login
and
Thanks for updating the list with the nice Themis updates Jianwei. I added
Themis to the powered by list (and the other missing transactions managers,
Tephra and Haeinsa).
St.Ack
On Mon, Nov 10, 2014 at 12:50 AM, 崔建伟 cuijian...@xiaomi.com wrote:
Hi everyone:
In last few months, we have updated
For your first question, region server web UI,
rs-status#regionRequestStats, shows Write Request Count.
You can monitor the value for the underlying region to see if it receives
above-normal writes.
Cheers
On Mon, Nov 10, 2014 at 4:06 PM, Brian Jeltema bdjelt...@gmail.com wrote:
Was the
Thanks. I appear to have resolved this problem by restarting the HBase Master
and the RegionServers
that were reporting the failure.
Brian
On Nov 11, 2014, at 12:13 PM, Ted Yu yuzhih...@gmail.com wrote:
For your first question, region server web UI,
rs-status#regionRequestStats, shows Write
Not sure of the question.
A scan will return multiple rows in sequential order. Note that its sequential
byte stream order.
The columns will also be in sequential order as well…
So if you have a set of column named as ‘foo’+timestamp then for each column in
the set of foo, it will be in
Thank you for the reply.
It helps me enough!
--
View this message in context:
http://apache-hbase.679495.n3.nabble.com/I-m-studying-hbase-with-php-and-I-wonder-getRow-guarantee-sequential-order-tp4065833p4065861.html
Sent from the HBase User mailing list archive at Nabble.com.
I see the 'Result' class has a toString() method. what I need is a serialized
form of the object, so that I can process the key values later on. The problem
I am trying to solve is that I need to convert the object to a string then
transfer this string to Python, and then let Python codes to
Currently Result's toString() calls toString() method of each Cell
(KeyValue) it contains.
KeyValue's toString() method is implemented like this:
return keyToString(this.bytes, this.offset + ROW_OFFSET,
getKeyLength()) + /vlen=
+ getValueLength() + /seqid= + seqId;
Meaning value is
the checkResource Ted mentioned is a good suspect. see online hbase book
9.7.7.7.1.1. Being Stuck.
Did you see below message in your RS log?
LOG.info(Waited + (System.currentTimeMillis() - fqe.createTime) +
ms on a compaction to clean up 'too many store files'; waited +
or:
LOG.warn(Region + region.getRegionNameAsString() + has too
many +
store files; delaying flush up to + this.blockingWaitTime +
ms);
sth like:
WARN org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Region
Hi Stack:
Thanks for your concern and work:). I will continue to improve Themis and
report the new progress.
Best
jianwei
From: saint@gmail.com saint@gmail.com on behalf of Stack
st...@duboce.net
Sent: Wednesday, November 12, 2014 12:15 AM
To:
Hi, all,
I am trying to use YCSB to test on our HBase 0.98.5 instance and got a strange
result: update is 6x better than read. It is just an exercise, so the HBase is
running in a workstation in standalone mode.
I modified the workloada shipped with YCSB into two new workloads: workloadr
and
Hi,
Is it possible to do a
select * from table_name where version = somedate ; using HBase APIs?.
(Scanning for values where version = somedate )
Could you please direct me to appropriate links to achieve this?.
Regards,
Krishna
For Example for table 'test_table', Values inserted are:
Row1 - Val1 = t
Row1 - Val2 = t + 3
Row1 - Val3 = t + 5
Row2 - Val1 = t
Row2 - Val2 = t + 3
Row2 - Val3 = t + 5
on scan 'test_table' where version = t + 4 should return
Row1 - Val1 = t + 3
Row2 - Val2 = t + 3
How do i achieve time stamp
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