Jayesh Lalwani created HIVE-29595:
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Summary: HiveClientCache does not respect metastore.client.impl
(HCatalog ignores pluggable IMetaStoreClient)
Key: HIVE-29595
URL: https://issues.apache.org/jira/browse/HIVE-29595
Project: Hive
Issue Type: Bug
Components: HCatalog, Metastore
Affects Versions: 4.2.0
Reporter: Jayesh Lalwani
HIVE-12679 (fixed in 4.2.0) added support for pluggable IMetaStoreClient via
metastore.client.impl in HiveMetaStoreClientBuilder. However, HiveClientCache
used by HCatalog's HCatInputFormat/HCatOutputFormat was not updated.
HiveClientCache still hardcodes HiveMetaStoreClient in:
1. getNonCachedHiveMetastoreClient() calls
RetryingMetaStoreClient.getProxy(hiveConf, true) which hardcodes
HiveMetaStoreClient.class.getName()
2. CacheableHiveMetaStoreClient extends HiveMetaStoreClient only works with
the Thrift client
This means any custom IMetaStoreClient configured via
hive.metastore.client.impl is ignored when accessing Hive tables through
HCatalog (MapReduce jobs using HCatInputFormat/HCatOutputFormat).
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