# Questions around \`update\_by\_query\` endpoint
**URL:** https://discuss.elastic.co/t/questions-around-update-by-query-endpoint/230264
**Category:** Elasticsearch
**Created:** [April 28, 2020, 10:42pm UTC](https://discuss.elastic.co/t/questions-around-update-by-query-endpoint/230264 "2020-04-28T22:42:57Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ljak](https://discuss.elastic.co/u/ljak)
#### Post date: [April 28, 2020, 10:42pm UTC](https://discuss.elastic.co/t/questions-around-update-by-query-endpoint/230264/1 "2020-04-28T22:42:57Z")
Hi everyone,
Just read the doc page [Update By Query API | Elasticsearch Guide [8.11] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update-by-query.html#docs-update-by-query-response-body) and have some questions:
> all failures that are returned by the failing bulk request are returned in the failures element;
**Does that mean that the `failure` key from response contains only the first failure or also the documents that have not been updated due to the abort ?**
> The parameter `conflicts=proceed` means that we do not abort the process (and we count the number of `version_conflicts`).
**Does that mean that `version_conflicts` = the size of `failure` array in that case ?**
> `wait_for_completion=true` parameter
**seems to mean that the response will no be sent until the process is done ?**
> retries: The number of retries attempted by update by query. bulk is the number of bulk actions retried, and search is the number of search actions retried.
**Should we use that to manage/assure that the process is done ?**
Any ideas ?
Thanks!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 26, 2020, 10:43pm UTC](https://discuss.elastic.co/t/questions-around-update-by-query-endpoint/230264/2 "2020-05-26T22:43:11Z")
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