+1

On 12/11/17 7:11 PM, Apekshit Sharma wrote:
Oh, btw, here's the little piece of code if anyone want's to analyze more.

Script to collect precommit runs' console text.

#!/bin/bash

for i in `seq 10100 10300`; do
   wget -a log -O ${i}
https://builds.apache.org/job/PreCommit-HBASE-Build/${i}/consoleText
done

Number of failed runs:
grep "|  -1  |    hadoopcheck" `ls 1*` | awk '{x[$1] = 1} END{for (i in x)
print i;}' | wc -l

Number of passed runs:
grep "|  +1  |    hadoopcheck" `ls 1*` | awk '{x[$1] = 1} END{for (i in x)
print i;}' | wc -l

-- Appy


On Mon, Dec 11, 2017 at 4:07 PM, Apekshit Sharma <a...@cloudera.com> wrote:

Hi

+1 hadoopcheck 52m 1s Patch does not cause any errors with Hadoop 2.6.1
2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 2.7.4 or 3.0.0-alpha4.

Almost 1 hr to check against 10 versions. And it's only going to increase
as more 2.6.x, 2.7.x and 3.0.x releases come out.

Suggestion here is simple, let's check against only the latest maintenance
release for each minor version i.e. 2.6.5, 2.7.4 and 3.0.0-alpha4.
Advantage: Save ~40 min on pre-commit time.

Justification:
- We only do compile checks. Maintenance releases are not supposed to be
doing API breaking changes. So checking against maintenance release for
each minor version should be enough.
- We rarely see any hadoop check -1, and most recent ones have been due to
3.0. These will still be caught.
- Nightly can still check against all hadoop versions (since nightlies are
supposed to do holistic testing)
- Analyzing 201 precommits from 10100 (11/29) - 10300 (12/8) [10 days]:
   138 had +1 hadoopcheck
    15 had -1 hadoopcheck
   (others probably failed even before that - merge issue, etc)


Spot checking some failures:[10241,10246,10225,
10269,10151,10156,10184,10250,10298,10227,10294,10223,10251,10119,10230]

10241: All 2.6.x failed. Others didn't run
10246: All 10 versions failed.
10184: All 2.6.x and 2.7.x failed. Others didn't run
10223: All 10 versions failed
10230: All 2.6.x failed. Others didn't run

Common pattern being, all maintenance versions fail together.
(idk, why sometimes 2.7.* are not reported if 2.6.* fail, but that's
irrelevant to this discussion).

What do you say - only check latest maintenance releases in precommit (and
let nightlies do holistic testing against all versions)?

-- Appy




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