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
Hi,
Is it possible to do a
select * from 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
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 wo
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 on behalf of Stack
Sent: Wednesday, November 12, 2014 12:15 AM
To: HBase Dev List
Cc: user@hbase.apache
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
occurrence,\x17\xF1o\x9C,1340981109494.ecb85155563c6
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 " +
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
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 pro
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.
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 orde
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 wrote:
> For your first question, region server web UI,
> rs-status#regionRequestStats, shows Write Request Count.
>
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 wrote:
> > Was the region containing this
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 wrote:
> Hi everyone:
> In last few months, we have updated Themis to achieve b
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 wrote:
> Sweet. Thanks for posting notice here Julian. Add TAggregator here
> http://wiki.apache.org/hadoop/SupportingProjects ? (Make yourself a login
> and tell me what i
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
wrote:
> Hi,
>
> I am pleas
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 timestam
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