Github user paul-rogers commented on a diff in the pull request: https://github.com/apache/drill/pull/482#discussion_r86574518 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/server/Drillbit.java --- @@ -218,13 +218,18 @@ private void javaPropertiesToSystemOptions() { } /** - * If cluster version is the same as default, update option to current drillbit version. + * If cluster version is the same as default, updates option to current drillbit version. + * Since getOption and setOption are separate calls, raise condition might occur + * when several drillbits are registering at the same time. + * It is assumed that the first drillbit in cluster sets cluster version + * but when the raise condition occurs, it might be the second or the third etc. + * This behaviour does not impose significant impact, since the main goal is to detect mismatching versions. --- End diff -- mismatching --> mismatched
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