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https://issues.apache.org/jira/browse/SPARK-28870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim updated SPARK-28870:
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Description:
This issue tracks the effort on compacting event log files into snapshot and
enable incremental reading to speed up replaying event logs.
This issue will be on top of SPARK-28869 as SPARK-28869 will create rolled
event log files. This issue will be also on top of SPARK-29111 and SPARK-29261,
as SPARK-29111 will add the ability to snapshot/restore from/to KVStore and
SPARK-29261 will add the ability to snapshot/restore of state of
(SQL)AppStatusListeners.
Note that both SPARK-29261 and SPARK-29111 will not be guaranteeing any
compatibility, and this issue should deal with two situations as well: 1) some
part of event log files got deleted 2) snapshot version is not compatible with
SHS.
was:
This issue tracks the effort on compacting event log files into snapshot and
enable incremental reading to speed up replaying event logs.
This issue will be on top of SPARK-28869 as SPARK-28869 will create rolled
event log files. This issue will be also on top of SPARK-29111 and SPARK-29261,
as SPARK-29111 will add the ability to snapshot/restore from/to KVStore and
SPARK-29261 will add the ability to snapshot/restore of state of
(SQL)AppStatusListeners.
> Snapshot event log files to support incremental reading
> -------------------------------------------------------
>
> Key: SPARK-28870
> URL: https://issues.apache.org/jira/browse/SPARK-28870
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 3.0.0
> Reporter: Jungtaek Lim
> Priority: Major
>
> This issue tracks the effort on compacting event log files into snapshot and
> enable incremental reading to speed up replaying event logs.
> This issue will be on top of SPARK-28869 as SPARK-28869 will create rolled
> event log files. This issue will be also on top of SPARK-29111 and
> SPARK-29261, as SPARK-29111 will add the ability to snapshot/restore from/to
> KVStore and SPARK-29261 will add the ability to snapshot/restore of state of
> (SQL)AppStatusListeners.
> Note that both SPARK-29261 and SPARK-29111 will not be guaranteeing any
> compatibility, and this issue should deal with two situations as well: 1)
> some part of event log files got deleted 2) snapshot version is not
> compatible with SHS.
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