codec(ticdc): reduce canal-json decode memory consumption by using buffered json decoder #11911
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ti-chi-bot
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How much memory will be reduced after applying this? |
previous, takes around 62%. now takes around 40%. I tried several json library, all takes a lot of memory in the consumer scenario. |
wk989898
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Dec 19, 2024
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asddongmen
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Dec 19, 2024
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: asddongmen, wk989898 The full list of commands accepted by this bot can be found here. The pull request process is described here
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What problem does this PR solve?
Issue Number: ref #11894
This is the second part to reduce the memory cost by the canal-json decoder when works with the consumer.
What is changed and how it works?
Unmarshalmethod, but still takes a lot.CanalJSONTxnDecoder, split related logic, to simplify the normal canal-json decoder.Check List
Tests
Questions
Will it cause performance regression or break compatibility?
Do you need to update user documentation, design documentation or monitoring documentation?
Release note