EugenDueck edited a comment on issue #6173: Log compaction fails due to timeout URL: https://github.com/apache/pulsar/issues/6173#issuecomment-582203489 @fantapsody I've now stripped this down to a self-contained example and have updated the instructions to reproduce the problem. I can reliably replicate it using above snippet. I've checked that the contents of neither key nor value are a problem, by using a single, hard-coded value for each. So when sending thousands of identical messages with the same key and value at low throughput (500 msg/sec or less), the topic can be compacted. But when sending thousands of identical messages at high throughput (I could replicate at more than 900 msg/sec), the topic becomes uncompactable. One more observation while playing with this: When trying to compact a freshly created topic which no messages has been sent to yet, I get the same timeout error. This is perhaps not that big a deal, but imo should be fixed.
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