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https://issues.apache.org/jira/browse/HIVE-30212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HIVE-30212:
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Labels: pull-request-available (was: )
> HMS ZooKeeper registration ignores the configured quorum when started through
> main
> ----------------------------------------------------------------------------------
>
> Key: HIVE-30212
> URL: https://issues.apache.org/jira/browse/HIVE-30212
> Project: Hive
> Issue Type: Bug
> Components: Standalone Metastore
> Affects Versions: 4.1.0, 4.2.0, 4.2.1
> Reporter: Petr Fedchenkov
> Priority: Major
> Labels: pull-request-available
>
> With metastore.service.discovery.mode=zookeeper, metastore.thrift.uris holds
> the ZooKeeper quorum (HIVE-20794). HiveMetaStore.main clears that key so
> in-process calls use the embedded metastore (hive.metastore.uris since
> HIVE-20905, metastore.thrift.uris too since HIVE-29078 in 4.1.0), and only
> afterwards startMetaStore builds the ZooKeeperHiveHelper from the
> configuration (MetastoreConf.getZKConfig). The helper gets an empty quorum,
> which becomes ":2181":
> {noformat}
> ZooKeeperHiveHelper: Creating curator client with connectString: :2181 ...
> java.net.ConnectException: Connection refused
> HiveMetaStore: Error adding this metastore instance to ZooKeeper:
> {noformat}
> A metastore started through main (hive --service metastore, start-metastore)
> exits unless a ZooKeeper server happens to listen on localhost:2181. In that
> case a chroot in the quorum is silently dropped. The existing ZooKeeper tests
> call startMetaStore directly and do not go through main, so they do not catch
> this.
> Reproduced with the official apache/hive:standalone-metastore-4.2.1 image on
> Kubernetes. apache/hive:4.0.1 registers with metastore.thrift.uris but fails
> the same way with hive.metastore.uris.
> Reproduce locally: run ZooKeeper on localhost:2182 and start HMS with
> metastore.service.discovery.mode=zookeeper and
> metastore.thrift.uris=localhost:2182.
> Fix: build the registration helper in main before the URIs are cleared and
> pass it to startMetaStore. An empty quorum in zookeeper mode should fail fast
> instead of connecting to localhost.
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