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https://issues.apache.org/jira/browse/ZOOKEEPER-246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Hunt updated ZOOKEEPER-246:
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Hadoop Flags: [Incompatible change, Reviewed] (was: [Reviewed])
> review error code definition in both source and docs
> ----------------------------------------------------
>
> Key: ZOOKEEPER-246
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-246
> Project: Zookeeper
> Issue Type: Improvement
> Components: c client, documentation, java client
> Affects Versions: 3.0.0, 3.0.1
> Reporter: Patrick Hunt
> Assignee: Patrick Hunt
> Priority: Minor
> Fix For: 3.1.0
>
> Attachments: ZOOKEEPER-246.patch, ZOOKEEPER-246.patch,
> ZOOKEEPER-246.patch
>
>
> A number of users have mentioned that our use of "calculated" values for
> error codes makes it very difficult to track error reports from the logs. In
> both c/java we have:
> int ERROR = 100
> int X_ERROR= ERROR + 1
> int Y_ERROR= ERROR + 2
> etc...
> which makes it difficult to grep/search for "101" and find these references.
> A number of users have mentioned that having non-calculated values (ie
> X_ERROR=101) would make it easier.
> I personally find calculated constants like this an anti-pattern.
> We should convert these values to non-calculated at a minimum, perhaps even
> redefine them as enums if possible.
> Also documentation, esp in the c code (the names btw c and java don't match
> btw) is lacking. We need to beef up docs in this area.
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