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emqx/changes/ce/fix-10717.en.md
Thales Macedo Garitezi 657df05ad9 fix(buffer_worker): avoid setting flush timer when inflight is full 
Fixes https://emqx.atlassian.net/browse/EMQX-9902

When the buffer worker inflight window is full, we don’t need to set a
timer to flush the messages again because there’s no more room, and
one of the inflight windows will flush the buffer worker by calling
`flush_worker`.

Currently, we do set the timer on such situation, and this fact
combined with the default batch time of 0 yields a busy loop situation
where the CPU spins a lot while inflight messages do not return.
2023-05-16 11:28:58 -03:00

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Fixed an issue where the buffering layer processes could use a lot of CPU when inflight window is full.