[CASSANDRA-7601] Data loss after nodetool taketoken

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.2.19, 2.0.10, 2.1 rc5
• Component/s: Testing

Environment

Mac OSX Mavericks. Ubuntu 14.04

• Reproduced In: 1.2.0 beta 1
• Assignee: Brandon Williams
• Reporter: Philip Thompson
• Reviewer: Tyler Hobbs
• Created: 23/Jul/14 20:23
• Updated: 28/Oct/15 16:13
• Resolved: 02/Sep/14 18:41

Description

The dtest consistent_bootstrap_test.py:TestBootstrapConsistency.consistent_reads_after_relocate_test is failing on HEAD of the git branches 2.1 and 2.1.0.

The test performs the following actions:

• Create a cluster of 3 nodes
• Create a keyspace with RF 2
• Take node 3 down
• Write 980 rows to node 2 with CL ONE
• Flush node 2
• Bring node 3 back up
• Run nodetool taketoken on node 3 to transfer 80% of node 1's tokens to node 3
• Check for data loss

When the check for data loss is performed, only ~725 rows can be read via CL ALL.

Issue Links

• is duplicated by: CASSANDRA-7721 Remove shuffle utility
• is related to: CASSANDRA-4445 balance utility for vnodes
• supercedes: CASSANDRA-5817 shuffle needs some love