Add a optional function to decode optional meta of table map event #833
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When consuming events from stream is blocked, the chan may use too much memory
When the consumption speed of the event chan in streamer cannot catch up with its production speed, leading to an accumulation of events, the current fixed channel size of 10240 might occupy significant memory, potentially triggering an Out Of Memory (OOM) condition. Making the size of the event chan configurable would allow for controlling the memory usage of the streamer.
…me more reflective of its actual meaning.
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PTAL @lance6716 |
lance6716
reviewed
Oct 19, 2023
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It's ok. |
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We added the column info for rows events in earlier 5.6 version. Unfortunately these instances can not be upgrade and our DTS depends on those infos in optional meta. Now this MySQL version just for our own usage, not for RDS. |
lance6716
approved these changes
Oct 20, 2023
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I have a hacked version of MySQL which has a UDF optional meta in table map event. I managed to add a TableMapOptionalMetaDecodeFunc to decode the optional meta.