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Prevent ES from writing to /tmp on startup #74162

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pgomulka opened this issue Jun 16, 2021 · 3 comments · May be fixed by #75164
Open

Prevent ES from writing to /tmp on startup #74162

pgomulka opened this issue Jun 16, 2021 · 3 comments · May be fixed by #75164
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:Core/Infra/CLI >enhancement good first issue Team:Core/Infra v7.16.0 v8.0.0

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@pgomulka
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@pgomulka pgomulka commented Jun 16, 2021

Elasticsearch is started using a bash script which by default can write files to /tmp directory. This is because <<< in bash is implemented using temporary files (creates /tmp/sh-thd.random string) https://itectec.com/ubuntu/ubuntu-whats-the-difference-between/
This can be reconfigured by changing TMP and TEMP environment variables.
or we should refactor the script to avoid using << or <<<
@elasticmachine
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@elasticmachine elasticmachine commented Jun 16, 2021

Pinging @elastic/es-core-infra (Team:Core/Infra)

@pgomulka pgomulka mentioned this issue Jun 16, 2021
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@randallwvr90
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@randallwvr90 randallwvr90 commented Jun 22, 2021

I found this by searching the "good first issue" tag.

It looks like Elasticsearch is started and the environment variables are set with these two scripts, is that right?

  • distribution/src/bin/elasticsearch
  • distribution/src/bin/elasticsearch-env

Is elastisearch-env the correct place to set the TMP and TEMP environment variables?
What directory would be the right place for the temporary files to be created?

@qilingzhao qilingzhao linked a pull request that will close this issue Jul 9, 2021
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@qilingzhao
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@qilingzhao qilingzhao commented Jul 9, 2021

Hi @pgomulka , i have commit a PR, please review it, thx.

@joegallo joegallo added v7.16.0 and removed v7.15.0 labels Sep 22, 2021
@sbasu-wsu sbasu-wsu mentioned this issue Oct 7, 2021
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:Core/Infra/CLI >enhancement good first issue Team:Core/Infra v7.16.0 v8.0.0
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feat(distribution/src/bin): Prevent ES from writing to /tmp on startup
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@joegallo @mark-vieira @pgomulka @elasticmachine @qilingzhao @randallwvr90 @rdnm