Colin Ma created SENTRY-565:
-------------------------------
Summary: Improvement the performance when Sentry filter the entity
Key: SENTRY-565
URL: https://issues.apache.org/jira/browse/SENTRY-565
Project: Sentry
Issue Type: Improvement
Reporter: Colin Ma
Currently, when get the metadata from hive, eg, "show tables", "show
databases". Sentry will filter the result and output the authorized entities.
There will be many RPC calls when filtering the result. The related code is in
HiveAuthzBinding, for example, in filterShowTables:
{code}
......
for (String tableName : queryResult) {
......
hiveAuthzBinding.authorize(operation, tableMetaDataPrivilege, subject,
inputHierarchy,
outputHierarchy, providedPrivileges);
......
}
......
{code}
hiveAuthzBinding.authorize will get the privileges from sentry service, if
there are many tables in the hive, the filtering process will spend much time.
Considering sentry also need to filter the column, HiveAuthzBinding should be
improved to reduce the number of rpc calls when doing the filter.
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