[CASSANDRA-15375] Remove BackPressureStrategy

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 4.0-beta1, 4.0
• Component/s: Messaging/Client, Observability/Logging
• Bug Category: Code - Bug - Unclear Impact
• Severity: Low
• Complexity: Low Hanging Fruit
• Discovered By: User Report
• Platform: All
• Since Version: 4.0-alpha4

Source Control Link

d8993934e976d8edb94cbfe2974688dac63c5db5

Test and Documentation Plan

n/a

• Assignee: Benedict Elliott Smith
• Reporter: Jon Haddad

Authors

Benedict Elliott Smith

Reviewers

Benedict Elliott Smith, Robert Stupp, Sergio Bossa

• Created: 25/Oct/19 15:10
• Updated: 17/Jul/20 21:19
• Resolved: 17/Jul/20 15:17

Description

This is odd:

INFO [main] 2019-10-25 10:33:07,985 DatabaseDescriptor.java:803 - Back-pressure is disabled with strategy org.apache.cassandra.net.RateBasedBackPressure{high_ratio=0.9, factor=5, flow=FAST}.

When I saw that, I wasn't sure if back pressure was actually disabled, or if I was really using RateBasedBackPressure.

This should change to output either:

Back-pressure is disabled

or

Back-pressure is enabled with strategy org.apache.cassandra.net.RateBasedBackPressure{high_ratio=0.9, factor=5, flow=FAST}.{{}}