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open-nomad/.changelog/11741.txt

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task runner: fix goroutine leak in prestart hook (#11741) The task runner prestart hooks take a `joincontext` so they have the option to exit early if either of two contexts are canceled: from killing the task or client shutdown. Some tasks exit without being shutdown from the server, so neither of the joined contexts ever gets canceled and we leak the `joincontext` (48 bytes) and its internal goroutine. This primarily impacts batch jobs and any task that fails or completes early such as non-sidecar prestart lifecycle tasks. Cancel the `joincontext` after the prestart call exits to fix the leak.
2021-12-23 16:50:51 +00:00
```release-note:bug
client: Fixed a memory and goroutine leak for batch tasks and any task that exits without being shut down from the server
```