Alluxio metrics number is inaccurate

Description

When I was running Presto queries on top of Alluxio, all data are read from Alluxio local workers through short circuit read, but the value of the short circuit read field under the total IO size tab does not keep increasing, it fluctuates. This might be caused by some concurrency issues in collecting metrics.

Also, for like 30 seconds, the total short circuit read size is 12GB according to “Total IO Size”, but the short circuit read field under the “Total IO Throughput (Last Minute)” is only several hundred MB.

Environment

None

Status

Assignee

Andrew Audibert

Reporter

Cheng Chang

Labels

None

Components

Fix versions

Affects versions

1.8.1

Priority

Major
Configure