表元数据缓存为什么要设置个过期时间 #4983
表元数据缓存为什么要设置个过期时间
#4983
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我看服务中已经有了每过60S去验证一次表元数据了，现在的情况是我不会去经常改表结构，即使改了也要重启服务，所以为了降低业务耗时，我在想能不能去掉这个过期时间。 |
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Answered by
funky-eyes
Oct 18, 2022
Replies: 1 comment 2 replies
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2 replies
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不好意思，描述错了。我没想关闭tableMetaCheckEnable，我想问的是图中TABLE_META_CACHE这个缓存为什么要设置过期时间 |
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其实不需要设置，我们准备直接使用ConcurrentHashMap了 |
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Answer selected by
funky-eyes
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请不要关闭client.rm.tableMetaCheckEnable 并建议将client.rm.tableMetaCheckerInterval 设置低于60000L来避免这种情况