[CASSANDRA-9683] Get mucher higher load and latencies after upgrading from 2.1.6 to cassandra 2.1.7

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.1.9
• Component/s: Legacy/Local Write-Read Paths, Local/Compaction

Environment

Ubuntu 12.04 (3.13 Kernel) * 3
JDK: Oracle JDK 7
RAM: 32GB
Cores 4 (+4 HT)

• Severity: Normal
• Since Version: 2.1.7
• Assignee: Ariel Weisberg
• Reporter: Loic Lambiel

Authors

Ariel Weisberg

• Created: 30/Jun/15 09:20
• Updated: 16/Apr/19 09:31
• Resolved: 17/Aug/15 15:04

Description

After upgrading our cassandra staging cluster version from 2.1.6 to 2.1.7, the average load grows from 0.1-0.3 to 1.8.

Latencies did increase as well.

We see an increase of pending compactions, probably due to CASSANDRA-9592.

This cluster has almost no workload (staging environment)

Issue Links

• duplicates: CASSANDRA-9662 compactionManager reporting wrong pendingtasks