[IMPALA-5236] Negative byte values are not printed with the correct unit

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 2.9.0
• Fix Version/s: Impala 2.10.0
• Component/s: Backend
• Labels: newbie supportability
• Target Version: Impala 2.10.0
• Epic Color: ghx-label-2
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 20/Apr/17 20:09
• Updated: 22/Aug/17 05:17
• Resolved: 22/Aug/17 05:17

Description

It seems like the logic to decide on the unit does not work correctly for negative values, e.g. it prints "-7369392.00 B" instead of showing MB

[localhost:21000] > select * from tpch.lineitem;
Query: select * from tpch.lineitem
Query submitted at: 2017-04-20 12:04:22 (Coordinator: http://localhost:25000)
Query progress can be monitored at: http://localhost:25000/query_plan?query_id=6048492f67282f78:ef0f2bd400000000
WARNINGS: Memory limit exceeded: Failed to allocate tuple buffer
HDFS_SCAN_NODE (id=0) could not allocate 190.00 KB without exceeding limit.
Error occurred on backend localhost:22000 by fragment 6048492f67282f78:ef0f2bd400000003
Memory left in process limit: 8.24 GB
Memory left in query limit: -7369392.00 B
Query(6048492f67282f78:ef0f2bd400000000): memory limit exceeded. Limit=1.00 MB Total=8.03 MB Peak=8.03 MB
  Fragment 6048492f67282f78:ef0f2bd400000000: Total=8.00 KB Peak=8.00 KB
    EXCHANGE_NODE (id=1): Total=0 Peak=0
    DataStreamRecvr: Total=0 Peak=0
    PLAN_ROOT_SINK: Total=0 Peak=0
    CodeGen: Total=0 Peak=0
  Block Manager: Total=0 Peak=0
  Fragment 6048492f67282f78:ef0f2bd400000003: Total=8.02 MB Peak=8.02 MB
    HDFS_SCAN_NODE (id=0): Total=8.01 MB Peak=8.01 MB
    DataStreamSender (dst_id=1): Total=688.00 B Peak=688.00 B
    CodeGen: Total=0 Peak=0

Issue Links

• is depended upon by: IMPALA-5158 Account for difference between process memory consumption and memory used by queries