# VersionConflictEngineException

**URL:** <https://discuss.elastic.co/t/versionconflictengineexception/144474>\
**Category:** Elasticsearch\
**Created:** [August 15, 2018, 8:30am UTC](https://discuss.elastic.co/t/versionconflictengineexception/144474 "2018-08-15T08:30:46Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![xyx](https://avatars.discourse-cdn.com/v4/letter/x/eb8c5e/32.png) [@xyx](https://discuss.elastic.co/u/xyx)\
**Post date:** [August 15, 2018, 8:30am UTC](https://discuss.elastic.co/t/versionconflictengineexception/144474/1 "2018-08-15T08:30:46Z")

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I use multiple threads to update one index.And I got VersionConflictEngineException.  
And it also tells me which shard failed（[daily\_station\_data\_collect\_20180731][0]]）.  
I think “[0]” is the shard which is failed.

So I wonder,if one shard failed by VersionConflictEngineException .Does the other successful shards will rollback?

201808081005154369=[daily\_station\_data\_collect\_20180731/ODDZikbqTp-YpKhsj6H-EQ][[daily\_station\_data\_collect\_20180731][0]] VersionConflictEngineException[[doc][201808081005154369]: version conflict, current version [14] is different than the one provided [13]],  
201808081002870621=[daily\_station\_data\_collect\_20180731/ODDZikbqTp-YpKhsj6H-EQ][[daily\_station\_data\_collect\_20180731][2]] VersionConflictEngineException[[doc][201808081002870621]: version conflict, current version [8] is different than the one provided [7]],

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [August 15, 2018, 9:37am UTC](https://discuss.elastic.co/t/versionconflictengineexception/144474/2 "2018-08-15T09:37:09Z")

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There is no concept of transactions or rollback in Elasticsearch. Operations that returned a successful response succeeded and have been applied.

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**Author:** ![xyx](https://avatars.discourse-cdn.com/v4/letter/x/eb8c5e/32.png) [@xyx](https://discuss.elastic.co/u/xyx)\
**Post date:** [August 24, 2018, 9:41am UTC](https://discuss.elastic.co/t/versionconflictengineexception/144474/3 "2018-08-24T09:41:44Z")

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Thank you.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 21, 2018, 9:49am UTC](https://discuss.elastic.co/t/versionconflictengineexception/144474/4 "2018-09-21T09:49:08Z")

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