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Displaying posts with tag: Replication Breakage (reset)
Aug
03
2026
Understanding MySQL Replication "fatal error 1236": "Replica has more GTIDs than the source has, using the source's SERVER_UUID"
Posted by Jean-François Gagné on Mon 03 Aug 2026 22:12 UTC
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This MySQL replication error — fatal error 1236 / Replica has more GTIDs than the source has, using the source's SERVER_UUID — shows the importance of thinking before acting.  I am glad a non-DBA Colleague asked me about it, because if he had restarted replication, it would have caused a much bigger mess. Often, we are tempted — or pushed — to just restart things

Mar
26
2026
Binary Log Compression is Safe since MySQL 8.0.34
Posted by Jean-François Gagné on Thu 26 Mar 2026 20:41 UTC
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This is a quick one.  My attention was recently brought (thanks Simon) on a relatively recent comment (25 Nov 2025) in Bug #103672 - Binlog compression transaction payload event exceeds max allowed packet :

The underlying server bug was fixed in 8.0.34 in BUG#33588473. The server now falls back to writing the transaction without compression, if the compressed size would