[STORM-326] task metric send repeatedly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.2-incubating, 0.9.1-incubating, 0.9.0.1
• Fix Version/s: 0.9.2-incubating
• Component/s: storm-core
• Labels: metrics
• Environment: CentOS 6.4 x64
• Assignee: troy ding
• Reporter: troy ding
• Created: 19/May/14 06:53
• Updated: 05/Oct/15 02:12
• Resolved: 29/May/14 19:14

Description

Tasks send unnecessary Metrics and the repeated time is equal to the number of tasks in the executor, which runs them.

Scenario: each time, a task will send repeated metric-tuples to the metricConsumer bolt (the 1st metric-tuple is normal, but the rest contain mostly zero-valued results).

Causality: when a task receives a metric-tick-tuple, it "mistakenly" triggers all the tasks (belonging to the same executor) sending out metrics.