Hi, We're planning to use WebHCat REST API to render JavaScript based Web console. As a result we'd like reasonable response times from WebHCat API.
The responses we measure in our cluster are slow to deliver a user friendly UI. We are looking for ways to improve these response times without caching. At the moment, our end to end response for a simple DDL describe database is around 10 seconds. Logs are attached for all components along the way: curl, knox, wehbcat and hive-metastore. curl : 7.390s knox: 7.133s hcat : 6.933s hive : 5.192s Do these numbers make sense? Or we have a misconfiguration in our environment. FYI our cluster is secure. accessing second time with Knox cookie does not help much. WebHCat is invoking hcat command for each DDL call but I don't think it contributes to much of slowness as most of time is spent in Hive Metastore initialising and shutting down ObjectStore for every call. Also DDL is pretty fast accessing Hive directly with beeline JDBC. Appreciate your help, Juan
curl.log
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hive-metastore.log
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knox.log
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webhcat.log
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