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From GitBox <...@apache.org>
Subject [GitHub] dawidwys closed pull request #6866: [hotfix][docs] Extended release notes with info about savepoint handl…
Date Wed, 17 Oct 2018 09:19:08 GMT
dawidwys closed pull request #6866: [hotfix][docs] Extended release notes with info about savepoint
handl…
URL: https://github.com/apache/flink/pull/6866
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/docs/release-notes/flink-1.5.md b/docs/release-notes/flink-1.5.md
index ba377dd85b9..ea411c5ef0c 100644
--- a/docs/release-notes/flink-1.5.md
+++ b/docs/release-notes/flink-1.5.md
@@ -96,5 +96,11 @@ The Kinesis dependencies of Flink’s Kinesis connector have been updated
to the
 <aws.kinesis-kpl.version>0.12.9</aws.kinesis-kcl.version>
 ```
 
+## Important changes in 1.5.5
+
+### Changed handling of savepoints while recovering
+
+Savepoints in version 1.5.5 are used while recovering. Previously when using exactly-once
sink one can get into problems with duplicate output data when a failure occurs after a savepoint
was taken but before the next checkpoint occured.
+This results in the fact that savepoints are no longer exclusively under the control of the
user. Savepoint should not be moved nor deleted if there was no newer checkpoint or savepoint
taken.
 
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