Zhihua Deng created HIVE-26667:
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Summary: Incompatible expression deserialization against latest HMS
Key: HIVE-26667
URL: https://issues.apache.org/jira/browse/HIVE-26667
Project: Hive
Issue Type: Bug
Components: Standalone Metastore
Reporter: Zhihua Deng
When an old Hive Metastore client issues listPartitionsByExpr against the
lastest HMS, an exception would be thrown:
{noformat}
MetaException(message:Unable to find class:
)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$get_partitions_by_expr_result$get_partitions_by_expr_resultStandardScheme.read(ThriftHiveMetastore.java)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$get_partitions_by_expr_result$get_partitions_by_expr_resultStandardScheme.read(ThriftHiveMetastore.java)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$get_partitions_by_expr_result.read(ThriftHiveMetastore.java)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:86)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.recv_get_partitions_by_expr(ThriftHiveMetastore.java:3273)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.get_partitions_by_expr(ThriftHiveMetastore.java:3260)
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.listPartitionsByExpr(HiveMetaStoreClient.java:1488){noformat}
This was caused by a gap between old client and server on (de)serializing the
expression. In old client, we don’t stream the expression’s class type into
bytes, while the server should read the class type from serialized bytes
firstly, which makes the trouble. Other APIs that need to (de)serialize
expression may be suffered as well.
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