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From "Avinash Lakshman (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-14) The initial arrive time should not be set to zero
Date Fri, 10 Apr 2009 17:26:14 GMT


Avinash Lakshman commented on CASSANDRA-14:

Hmm. That is weird. Because I have small, 5 node test cluster, and it definitely doesn't take
minutes. Maybe the recovery is taking time. Nodes do not join the cluster untill recovery
is complete.

> The initial arrive time should not be set to zero
> -------------------------------------------------
>                 Key: CASSANDRA-14
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: zhu han
>            Assignee: Avinash Lakshman
>             Fix For: 0.3
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
> In line 253 of .FailureDetector, the initial arrive time
should not be zero. Otherwise, the failure detector would report the new joining node as dead
because the phi is positive infinity when the mean of arrive time is zero. 
> A proper value should be set as the initial value. I use half of the gossip period as
the initial value,  whose default configuration is 1000ms. 

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