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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/06/23 01:35:33 UTC
[GitHub] [shardingsphere] natehuangting opened a new issue, #18521: Why does proxy use hint to force routing to make multiplexing into one request and one thread?
natehuangting opened a new issue, #18521:
URL: https://github.com/apache/shardingsphere/issues/18521
## Question
Why does proxy use hint to force routing to make multiplexing into one request and one thread?
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[GitHub] [shardingsphere] natehuangting commented on issue #18521: Why does proxy use hint to force routing to make multiplexing into one request and one thread?
Posted by GitBox <gi...@apache.org>.
natehuangting commented on issue #18521:
URL: https://github.com/apache/shardingsphere/issues/18521#issuecomment-1163896895
@strongduanmu Sorry, I misunderstood. I read the source code, using hintManager requires a connection and a thread, and using hint through comments is not required, is that what I understand?
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[GitHub] [shardingsphere] strongduanmu commented on issue #18521: Why does proxy use hint to force routing to make multiplexing into one request and one thread?
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #18521:
URL: https://github.com/apache/shardingsphere/issues/18521#issuecomment-1163848416
Besides, you can try SQL HINT for some scenario——https://shardingsphere.apache.org/document/current/cn/user-manual/shardingsphere-jdbc/special-api/sharding/hint/#%E4%BD%BF%E7%94%A8-hint-%E5%88%86%E7%89%87.
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[GitHub] [shardingsphere] natehuangting closed issue #18521: Why does proxy use hint to force routing to make multiplexing into one request and one thread?
Posted by GitBox <gi...@apache.org>.
natehuangting closed issue #18521: Why does proxy use hint to force routing to make multiplexing into one request and one thread?
URL: https://github.com/apache/shardingsphere/issues/18521
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[GitHub] [shardingsphere] strongduanmu commented on issue #18521: Why does proxy use hint to force routing to make multiplexing into one request and one thread?
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #18521:
URL: https://github.com/apache/shardingsphere/issues/18521#issuecomment-1163847264
Because the Hint feature uses ThreadLocal, it is necessary to ensure that threads in the same connection are reused. For more detailed info, you can refer https://github.com/apache/shardingsphere/blob/eac19a2d497da4ab6074fb101099b151a1cdc7f1/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hint/HintManager.java.
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