# Not able to understand the logs of shrink index API?

**URL:** <https://discuss.elastic.co/t/not-able-to-understand-the-logs-of-shrink-index-api/172058>\
**Category:** Elasticsearch\
**Created:** [March 13, 2019, 5:06am UTC](https://discuss.elastic.co/t/not-able-to-understand-the-logs-of-shrink-index-api/172058 "2019-03-13T05:06:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nikhil.k](https://avatars.discourse-cdn.com/v4/letter/n/5daacb/32.png) [@nikhil.k](https://discuss.elastic.co/u/nikhil.k)\
**Post date:** [March 13, 2019, 5:06am UTC](https://discuss.elastic.co/t/not-able-to-understand-the-logs-of-shrink-index-api/172058/1 "2019-03-13T05:06:47Z")

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Hi Everyone,

Elasticsearch version - 6.4.1

Can anyone explain me the given below debug logs in detail:

1. [node1] [index2][0] bootstrap a new history\_uuid [{local\_checkpoint=-1, history\_uuid=Dz\_7d05nTE2SlToGdT7 5Eg, max\_seq\_no=-1}], user\_data [{local\_checkpoint=-1, max\_unsafe\_auto\_id\_timestamp=-1, max\_seq\_no=-1}]

2. [node1] [index2][0] starting index commit [{history\_uuid=Dz\_7d05nTE2SlToGdT75Eg, local\_checkpoint=-1, ma x\_seq\_no=-1, max\_unsafe\_auto\_id\_timestamp=-1, translog\_generation=1, translog\_uuid=lEC7YUq-Sy2cdYfHrISGrQ}]

3. [node1] [index2][0] open uncommitted translog checkpoint Checkpoint{offset=55, numOps=0, generation=1, m inSeqNo=-1, maxSeqNo=-1, globalCheckpoint=-1, minTranslogGeneration=1, trimmedAboveSeqNo=-2}

4. [node1] [index2][0] Safe commit [CommitPoint{segment[segments\_4], userData[{history\_uuid=Dz\_7d05nTE2SlTo GdT75Eg, local\_checkpoint=-1, max\_seq\_no=-1, max\_unsafe\_auto\_id\_timestamp=-1, translog\_generation=1, translog\_uuid=lEC7YUq-Sy2cdYfHrISGrQ}]}], last commit [CommitPo int{segment[segments\_4], userData[{history\_uuid=Dz\_7d05nTE2SlToGdT75Eg, local\_checkpoint=-1, max\_seq\_no=-1, max\_unsafe\_auto\_id\_timestamp=-1, translog\_generation=1, translog\_uuid=lEC7YUq-Sy2cdYfHrISGrQ}]}]

Regards  
Nikhil Kapoor

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 10, 2019, 5:06am UTC](https://discuss.elastic.co/t/not-able-to-understand-the-logs-of-shrink-index-api/172058/2 "2019-04-10T05:06:48Z")

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Closed on April 10, 2019, 5:06am UTC

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