Skip streaming auto-scaling action if supervisor is idle#14773
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jon-wei merged 2 commits intoapache:masterfrom Aug 18, 2023
Merged
Skip streaming auto-scaling action if supervisor is idle#14773jon-wei merged 2 commits intoapache:masterfrom
jon-wei merged 2 commits intoapache:masterfrom
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abhishekrb19
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Aug 7, 2023
.../main/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisor.java
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…blestream/supervisor/SeekableStreamSupervisor.java Co-authored-by: Abhishek Radhakrishnan <abhishek.rb19@gmail.com>
abhishekrb19
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Aug 7, 2023
zachjsh
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Aug 17, 2023
| return; | ||
| } | ||
| if (SupervisorStateManager.BasicState.IDLE == getState()) { | ||
| log.info( |
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How often does this get logged? Seems like once a minute by default? Should we lower to debug?
zachjsh
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Aug 17, 2023
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This PR fixes an issue where the streaming supervisor task auto-scaling will continue to submit taskCount changes when the supervisor is idle (with 0 running tasks in IDLE state, the auto-scaling believes it needs to update the taskCount to the desired count). This can lead to a large buildup of redundant supervisor specs in the supervisor history.
This PR has: