# Known Issue Logstash 7.7.1-7.9.1: Logstash Keystore may fail when used with multiple pipelines

**URL:** <https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711>\
**Category:** Logstash\
**Created:** [October 20, 2020, 3:53pm UTC](https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711 "2020-10-20T15:53:02Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![RobBavey](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/robbavey/32/20421_2.png) [@RobBavey](https://discuss.elastic.co/u/RobBavey)\
**Post date:** [October 20, 2020, 3:53pm UTC](https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711/1 "2020-10-20T15:53:02Z")

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A performance related change made in Logstash 7.7.1 may cause Logstash configurations with multiple pipelines to fail with the following error:

```auto
"Unable to configure plugins: (ConfigurationError) Cannot evaluate `${variable}`. Replacement variable `variable` is not defined in a Logstash secret store or as an Environment entry and there is no default value given."

```

A fix for this issue was included as part of the Logstash 7.9.2 release, and users encountering the above issue should upgrade their Logstash instance.

You can read more about the issue [here](https://github.com/elastic/logstash/issues/12229), and more about the fix [here](https://github.com/elastic/logstash/pull/12233)

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**Author:** ![Jugsofbeer](https://avatars.discourse-cdn.com/v4/letter/j/9de0a6/32.png) [@Jugsofbeer](https://discuss.elastic.co/u/Jugsofbeer)\
**Post date:** [October 20, 2020, 7:34pm UTC](https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711/2 "2020-10-20T19:34:58Z")

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Shouldnt the title be

Known issue Logstash 7.7.1-7.9.1.

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<div class="post-metadata">

**Author:** ![RobBavey](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/robbavey/32/20421_2.png) [@RobBavey](https://discuss.elastic.co/u/RobBavey)\
**Post date:** [October 20, 2020, 7:49pm UTC](https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711/3 "2020-10-20T19:49:52Z")

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Yes, thank you for spotting that Ben!

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<div class="post-metadata">

**Author:** ![Jugsofbeer](https://avatars.discourse-cdn.com/v4/letter/j/9de0a6/32.png) [@Jugsofbeer](https://discuss.elastic.co/u/Jugsofbeer)\
**Post date:** [October 20, 2020, 7:51pm UTC](https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711/4 "2020-10-20T19:51:44Z")

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No worries, thanks for providing these logstash fixes.

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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:** [November 17, 2020, 7:52pm UTC](https://discuss.elastic.co/t/known-issue-logstash-7-7-1-7-9-1-logstash-keystore-may-fail-when-used-with-multiple-pipelines/252711/5 "2020-11-17T19:52:00Z")

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