Have defined the Hive table as:

    create table DB1.T1 (
    id1 int,
    id2 int
    )
    ROW FORMAT DELIMITED FIELDS TERMINATED BY ','
    LINES TERMINATED BY '\n;

And the export was thence accomplished.

18/04/18 13:09:11 INFO mapreduce.Job: Counters: 30 File System Counters FILE: Number of bytes read=0 FILE: Number of bytes written=175430 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 HDFS: Number of bytes read=189 HDFS: Number of bytes written=0 HDFS: Number of read operations=4 HDFS: Number of large read operations=0 HDFS: Number of write operations=0 Job Counters Launched map tasks=1 Rack-local map tasks=1 Total time spent by all maps in occupied slots (ms)=2747 Total time spent by all reduces in occupied slots (ms)=0 Total time spent by all map tasks (ms)=2747 Total vcore-milliseconds taken by all map tasks=2747 Total megabyte-milliseconds taken by all map tasks=2812928 Map-Reduce Framework Map input records=1 Map output records=1 Input split bytes=182 Spilled Records=0 Failed Shuffles=0 Merged Map outputs=0 GC time elapsed (ms)=47 CPU time spent (ms)=1620 Physical memory (bytes) snapshot=359587840 Virtual memory (bytes) snapshot=2823344128 Total committed heap usage (bytes)=619184128 File Input Format Counters Bytes Read=0 File Output Format Counters Bytes Written=0 18/04/18 13:09:11 INFO mapreduce.ExportJobBase: Transferred 189 bytes in 13.8196 seconds (13.6762 bytes/sec) 18/04/18 13:09:11 INFO mapreduce.ExportJobBase: Exported 1 records.