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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2020/08/03 12:07:43 UTC
[GitHub] [shardingsphere-elasticjob] BoulCheng opened a new pull request #1329: 修复哈希表初始容量以避免发生扩容
BoulCheng opened a new pull request #1329:
URL: https://github.com/apache/shardingsphere-elasticjob/pull/1329
修复哈希表初始容量以避免发生扩容
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[GitHub] [shardingsphere-elasticjob] terrymanu commented on pull request #1329: 修复哈希表初始容量以避免发生扩容
Posted by GitBox <gi...@apache.org>.
terrymanu commented on pull request #1329:
URL: https://github.com/apache/shardingsphere-elasticjob/pull/1329#issuecomment-667996033
Why not use sharding total count as initial capacity of hash map?
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[GitHub] [shardingsphere-elasticjob] terrymanu merged pull request #1329: 修复哈希表初始容量以避免发生扩容
Posted by GitBox <gi...@apache.org>.
terrymanu merged pull request #1329:
URL: https://github.com/apache/shardingsphere-elasticjob/pull/1329
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[GitHub] [shardingsphere-elasticjob] BoulCheng commented on pull request #1329: 修复哈希表初始容量以避免发生扩容
Posted by GitBox <gi...@apache.org>.
BoulCheng commented on pull request #1329:
URL: https://github.com/apache/shardingsphere-elasticjob/pull/1329#issuecomment-668344382
> Why not use sharding total count as initial capacity of hash map?
Because the key of the hash table is the job instance. If the shardingTotalCount is larger than the total number of job instances, space will be wasted. If the shardingTotalCount is smaller than the total number of job instances, the hash table will resize.
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