Myasuka commented on issue #8668: [FLINK-12784][metrics] Support retention policy for InfluxDB metrics … URL: https://github.com/apache/flink/pull/8668#issuecomment-501615936 The root cause is `Cached flink dir /home/travis/flink_cache/37549/flink does not exist. Exiting build`. From my experience, this might be a travis bug, as far as I know, you could try to close - reopen this PR or create a new commit to retrigger the build phase.
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