[jira] [Created] (SENTRY-2430) Avoid getting the complete partition objects and fetch the location information only.

["kalyan kumar kalvagadda (JIRA)" <ji...@apache.org>]

kalyan kumar kalvagadda created SENTRY-2430:
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             Summary: Avoid getting the complete partition objects and fetch the location information only.
                 Key: SENTRY-2430
                 URL: https://issues.apache.org/jira/browse/SENTRY-2430
             Project: Sentry
          Issue Type: Sub-task
          Components: Sentry
         Environment: {code:java}
// code placeholder
{code}
            Reporter: kalyan kumar kalvagadda


With the changes added as part of HIVE-20306, HiveMetaStoreClient now exposes new API "

"getPartitionsWithSpecs" using which sentry can request specific information for partition.

In simple words sentry could say fetch me the location information for the partitions in given table. Here is simple example on how it can be used.

 

 

 

 
{code:java}
    GetPartitionsRequest request = new GetPartitionsRequest();

    GetPartitionsProjectSpec projectSpec = new GetPartitionsProjectSpec();

    projectSpec.setFieldList(Arrays.asList("sd.location"));

    GetPartitionsFilterSpec filter = new GetPartitionsFilterSpec();

    filter.setDbName("compdb");

    filter.setTblName("comptbl");

    request.setFilterSpec(filter);

    request.setProjectionSpec(projectSpec);

    GetPartitionsResponse response;

    try {

      response = client.getPartitionsWithSpecs(request);

    } catch (Exception ex) {

      ex.printStackTrace();

      LOG.error("Exception while retrieving partitions", ex);

      throw ex;

    }
{code}
 

 



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