Jay Zhuang created CASSANDRA-14551:
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Summary: ReplicationAwareTokenAllocator should block bootstrap if
no replication number is set
Key: CASSANDRA-14551
URL: https://issues.apache.org/jira/browse/CASSANDRA-14551
Project: Cassandra
Issue Type: Bug
Components: Configuration
Reporter: Jay Zhuang
Assignee: Jay Zhuang
We're using
[ReplicationAwareTokenAllocator|https://www.datastax.com/dev/blog/token-allocation-algorithm].
When bootstrapping a new DC, the tokens are not well distributed. The problem
is because the replication number is not set for the new DC before the
bootstrap.
I would suggest blocking the bootstrap if replication number is not set. It's
unsafe to assume the default replicas is 1. Which also causes the following
invalid stats:
{noformat}
WARN [main] 2018-06-29 17:30:55,696 TokenAllocation.java:69 - Replicated node
load in datacenter before allocation max NaN min NaN stddev NaN
WARN [main] 2018-06-29 17:30:55,696 TokenAllocation.java:70 - Replicated node
load in datacenter after allocation max NaN min NaN stddev NaN
{noformat}
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