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[ISSUE #11890] Check instance existence before expiring its metadata #11932
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[ISSUE #11890] Check instance existence before expiring its metadata #11932
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@@ -126,4 +127,16 @@ public String toString() { | |||
public static String genMetadataId(String ip, int port, String cluster) { | |||
return ip + InternetAddressUtil.IP_PORT_SPLITER + port + InternetAddressUtil.IP_PORT_SPLITER + cluster; | |||
} | |||
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public static String getClusterFromMetadataId(String metadataId) { |
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这3个方法建议放置到 Cleaner中,作为私有方法
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这3个方法建议放置到 Cleaner中,作为私有方法
这几个方法只和metadataId的结构有关系,似乎应该放在生成metadataId的地方,并作为公共方法比较好?
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但是只有这里有需要使用, 我觉得还是放cleaner里作为私有方法, 如果以后真需要再改。
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但是只有这里有需要使用, 我觉得还是放cleaner里作为私有方法, 如果以后真需要再改。
问题是如果后面其他地方有需要用,比较难发现某个cleaner已经定义了一个私有方法?
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这个问题你放在这里也可能是一样的, 这个必须通过review才可以,如果你一定要单独处理,要不就放到一个工具类里。
我的意见是暂时没有必要, 如果后续有需要,再做抽象即可, 不要为了不存在的需求做所谓的优化。
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为啥生成metadataID的方法是在这个类,解析metadataID又要放在别的类呢?这个metadataID本来就算是InstancePublishInfo的一个属性。
当我们有解析metadataID的需求的时候,我觉得很自然会去找到生成metadataID的类去看metadataID的结构,所以这3个方法放在这个类也是很合理的。
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因为只有你这个地方要解析, 没有别的地方要解析, 说白了要解析是你这个地方的特殊逻辑,当然要以私有方法方式支持。
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要不然你就把所有metadataID的相关操作,都封装到一个工具类里面。
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说白了, 现在这个PR只是为了修复这个问题的临时手段, 在临时手段中允许暂时的去解析metadataID,获取对应的数据,先修复问题,不考虑性能和处理手段,长期必须要合理处理这个机制,可能根本就不用去解析metadataId。
所以现在就应该把metadataID的解析工作,收敛到这个特殊的修复逻辑中, 不能发散成为一个通用手段。除非以后确定metadataID需要被拆分解析,如果到了那一步, 我反而倾向吧metadataID变为一个Object,而不是简单的字符串。
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3个方法建议放置到 Cleaner中,作为私有方法
Please do not create a Pull Request without creating an issue first.
What is the purpose of the change
Resolve #11890
Brief changelog
Update ExpiredMetadataCleaner to check instance existence before expiring its metadata
Verifying this change
Follow reproducing steps in #11890 to verify.
Checklist
Follow this checklist to help us incorporate your contribution quickly and easily:
[ISSUE #123] Fix UnknownException when host config not exist
. Each commit in the pull request should have a meaningful subject line and body.mvn -B clean package apache-rat:check findbugs:findbugs -Dmaven.test.skip=true
to make sure basic checks pass. Runmvn clean install -DskipITs
to make sure unit-test pass. Runmvn clean test-compile failsafe:integration-test
to make sure integration-test pass.