GitHub user tcondie opened a pull request:
https://github.com/apache/spark/pull/15852
Spark 18187
## What changes were proposed in this pull request?
CompactibleFileStreamLog relys on "compactInterval" to detect a compaction
batch. If the "compactInterval" is reset by user, CompactibleFileStreamLog will
return wrong answer, resulting data loss. This PR procides a way to check the
validity of 'compactInterval', and calculate an appropriate value.
## How was this patch tested?
When restart a stream, we change the
'spark.sql.streaming.fileSource.log.compactInterval' different with the former
one.
The primary solution to this issue was given by @uncleGen
Added extensions include an additional metadata field in OffsetSeq and
CompactibleFileStreamLog APIs. @zsxwing
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tcondie/spark spark-18187
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15852.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #15852
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commit 65395dddb505f6084db471430da1486d75a77e2a
Author: genmao.ygm <genmao.ygm@genmaoygmdemacbook-air.local>
Date: 2016-11-09T08:21:09Z
SPARK-18187: CompactibleFileStreamLog should not rely on "compactInterval"
to detect a compaction batch
commit d556933e0f039d661989e07f381aff185c9fac1b
Author: genmao.ygm <genmao.ygm@genmaoygmdemacbook-air.local>
Date: 2016-11-09T08:24:53Z
comment update
commit 8b56f70b2dffd69dbc37007e923f3d5a56fce039
Author: genmao.ygm <genmao.ygm@genmaoygmdemacbook-air.local>
Date: 2016-11-09T08:34:11Z
revert
commit 4a7e28c4e372caa3b16b979273577bd6aa2c11f3
Author: genmao.ygm <genmao.ygm@genmaoygmdemacbook-air.local>
Date: 2016-11-09T08:35:13Z
unit test - compacat metadata log
change compactInterval from 4 to 5
commit 23e1baf454bde511ed1963a27f6492100823d496
Author: genmao.ygm <genmao.ygm@genmaoygmdemacbook-air.local>
Date: 2016-11-09T09:34:15Z
bug fix: /zero
commit 7d37e08026eaa1364e8a4fb10fb7cfb93cb51229
Author: Tyson Condie <tcon...@gmail.com>
Date: 2016-11-11T00:50:02Z
Merge branch 'SPARK-18187' of https://github.com/uncleGen/spark into
spark-18187
commit d3f7bbf32d0debba24853a38eb48bfcdcdb517be
Author: Tyson Condie <tcon...@gmail.com>
Date: 2016-11-11T00:52:24Z
Merge branch 'master' of https://github.com/apache/spark into spark-18187
commit 6901eacdddf235db4ba91a0903ce8826978d778a
Author: Tyson Condie <tcon...@gmail.com>
Date: 2016-11-11T18:16:41Z
extend offset seq to include metadata
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