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From Andrew Purtell <apurt...@apache.org>
Subject Re: [VOTE] The 1st HBase 0.98.4 release candidate (RC0) is available, vote closing 7/21/2014
Date Fri, 18 Jul 2014 00:12:34 GMT
See thread on dev@ titled "Comparing the performance of 0.98.4 RC0 and
0.98.0 using YCSB - 23% perf regression in workload E"

-1 on this RC for now, pending reproduction and further analysis on a dev
box.

[...]

These tests were run with no security coprocessors installed, using HFile
V2. The workload E results are a concern. *It appears we have a 23% decline
in measured scan throughput and an 23% increase in average op time from 27
ms to 35 ms. *This does not correspond to any active security feature
(though that could worsen results potentially, untested) so is something
changed in core code. Other workloads are not affected so this is something
specific to scanning. Perhaps delete tracking.

[...]

*Workload E*






[OVERALL] RunTime(ms)16009102078826 [OVERALL]Throughput(ops/sec) 63084835
[INSERT] Operations499131500322 [INSERT]AverageLatency(us) 1417[INSERT]
MinLatency(us)55 [INSERT]MaxLatency(us) 506079564468[INSERT]
95thPercentileLatency(ms)0 0[INSERT]99thPercentileLatency(ms) 00 [SCAN]
Operations9500869 9499678[SCAN] AverageLatency(us)
​​
 ​​
2663634620 [SCAN]MinLatency(us) 746755[SCAN] MaxLatency(us)8067864 4615914
[SCAN]95thPercentileLatency(ms) 117136 [SCAN]99thPercentileLatency(ms)169
187





On Mon, Jul 14, 2014 at 8:38 PM, Andrew Purtell <apurtell@apache.org> wrote:

> The 1st HBase 0.98.4 release candidate (RC0) is available for download at
> http://people.apache.org/~apurtell/0.98.4RC0/ and Maven artifacts are
> also available in the temporary repository
> https://repository.apache.org/content/repositories/orgapachehbase-1026/
>
> Signed with my code signing key D5365CCD.
>
> The issues resolved in this release can be found here:
> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12326810
>
>
> Please try out the candidate and vote +1/-1 by midnight Pacific Time
> (00:00 -0800 GMT) on July 21 on whether or not we should release this as
> 0.98.4. Three +1 votes from PMC will be required to release.
>
> --
> Best regards,
>
>    - Andy
>
> Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)
>



-- 
Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)

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