feat(core): make wal apply more fair in case of skewed transaction frequences #3592
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puzpuzpuz
reviewed
Jul 24, 2023
core/src/main/java/io/questdb/cairo/wal/seq/TableSequencerAPI.java
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explicitly unsuspend SeqTxnTracker
[PR Coverage check]😍 pass : 86 / 103 (83.50%) file detail
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puzpuzpuz
approved these changes
Jul 31, 2023
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When WAL apply job queue is overflown, the same tables can be picked up by WAL Apply Job over and over.
To fix the frequency of queue overflows, do not post a message more than once, until the message is processed