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For every read request involving table/partitions, HMS client (HiveMetaStoreClient) need to pass tableid and validWriteIdList string in addition to the existing arguments. tableid and validWriteIdList can be retrieved with txnMgr.getValidWriteIdsAndTblIds(). validWriteIdList can be null if it is external table, as HMS will return whatever in the cache for external table using eventual consistency. But if validWriteIdList=null for managed table, HMS will throw exception. validWriteIdList is a serialized form of ValidReaderWriteIdList. Usually ValidTxnWriteIdList can be obtained from HiveTxnManager using the following code snippet:

anagerHiveTxnManager txnMgr = TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
ValidTxnList txnIds = txnMgr.getValidTxns(); // get global transaction state
ValidTxnWriteIdList
txnWriteIdsTblIds = txnMgr.getValidWriteIdsTableIds(txnTables, txnString); // map global transaction state to table specific write id
int tblId = txnWriteIdsTblIds.getTableId(fullTableName);
ValidWriteIdList writeids = txnWriteIds.getTableValidWriteIdList(fullTableName); // get table specific writeid

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