samza-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Shanthoosh Venkataraman <santhoshvenkat1...@gmail.com>
Subject Re: Review Request 52476: SAMZA-1083 : Do not load task store which are older than delete tombstones.
Date Wed, 08 Feb 2017 21:38:09 GMT


> On Feb. 8, 2017, 8:43 p.m., Jake Maes wrote:
> > samza-core/src/main/scala/org/apache/samza/storage/TaskStorageManager.scala, line
177
> > <https://reviews.apache.org/r/52476/diff/4-6/?file=1541857#file1541857line177>
> >
> >     Looks like this log statement belongs in an else-block. It says the store is
stale, but in this block, we've determined hasValidOffsetFile=true.
> >     
> >     Also the wording isn't entirely accurate. The offset file may be present, but
empty. It might be better to say "Offset file is not valid for store: %s"

My bad, this minor thing was missed while refactoring. Thanks for pointing it out. Fixed.


- Shanthoosh


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/52476/#review164765
-----------------------------------------------------------


On Feb. 8, 2017, 9:37 p.m., Shanthoosh Venkataraman wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/52476/
> -----------------------------------------------------------
> 
> (Updated Feb. 8, 2017, 9:37 p.m.)
> 
> 
> Review request for samza.
> 
> 
> Repository: samza
> 
> 
> Description
> -------
> 
> Every local task store is backed up by a kafka changelog topic. Due to log compaction,
delete tombstones of the changelog topic have a ttl of delete.retention.ms. Replaying the
events from the changelog that has missing delete tombstones, would result in creation of
an inconsistent local store(due to the missing of some delete events). This patch deletes
the local stores in which difference between current time and last modified time of the offset
file is greater than delete.retention.ms during the container startup.
> 
> 
> Diffs
> -----
> 
>   samza-core/src/main/java/org/apache/samza/storage/StorageRecovery.java 9329edf7d724f3a0d9235354bb77936f713e3b5f

>   samza-core/src/main/scala/org/apache/samza/config/StorageConfig.scala a3587d0a40c57374ee1742234929d444e381e42d

>   samza-core/src/main/scala/org/apache/samza/container/SamzaContainer.scala c3308bfd7de04c335fef6cb66baa29286a230080

>   samza-core/src/main/scala/org/apache/samza/storage/TaskStorageManager.scala 0b7bcdda1639eea8239a69c31bdf42558e9077d2

>   samza-core/src/test/scala/org/apache/samza/storage/TestTaskStorageManager.scala 4d40f520e54beb643acd8410c772b75e2f6a9162

>   samza-kafka/src/main/scala/org/apache/samza/config/KafkaConfig.scala 9320cf744ff90d647a198b51cb06d2a526fe68fa

> 
> Diff: https://reviews.apache.org/r/52476/diff/
> 
> 
> Testing
> -------
> 
> Unit testing and manual testing has been done to verify the functionality.
> 
> 
> Thanks,
> 
> Shanthoosh Venkataraman
> 
>


Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message