[IMPALA-866] Explain plans have wrong table size information (twice the actual size)

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 1.3
• Fix Version/s: Impala 1.3
• Assignee: Alexander Behm
• Reporter: Ishaan Joshi
• Created: 10/Mar/14 21:30
• Updated: 20/Dec/15 00:05
• Resolved: 12/Mar/14 01:23

Description

[ishaan@c2308 ~]$ impala-shell --quiet -q "explain select * from tpch1000gb.lineitem"
Starting Impala Shell without Kerberos authentication
+-----------------------------------------------------------+
| Explain String                                            |
+-----------------------------------------------------------+
| Estimated Per-Host Requirements: Memory=176.00MB VCores=1 |
|                                                           |
| 01:EXCHANGE [PARTITION=UNPARTITIONED]                     |
| |                                                         |
| 00:SCAN HDFS [tpch1000gb.lineitem]                        |
|    partitions=1/1 size=1.43GB                             |
+-----------------------------------------------------------+

[ishaan@c2308 ~]$ hdfs dfs -du -s -h /test-warehouse/tpch1000gb.lineitem
733.2 M  /test-warehouse/tpch1000gb.lineitem