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Date: Wed, 22 Apr 2009 10:00:47 -0700 (PDT)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: cassandra-commits@incubator.apache.org
Subject: [jira] Commented: (CASSANDRA-14) The initial arrive time should not
 be set to zero
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    [ https://issues.apache.org/jira/browse/CASSANDRA-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12701600#action_12701600 ] 

Jonathan Ellis commented on CASSANDRA-14:
-----------------------------------------

part 2 cleans up FD by using a Deque instead of a List.

> The initial arrive time should not be set to zero
> -------------------------------------------------
>
>                 Key: CASSANDRA-14
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: zhu han
>            Assignee: Avinash Lakshman
>             Fix For: 0.3
>
>         Attachments: 14-part-2.patch, 14.patch
>
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> In line 253 of src.org.apache.cassandra.gms .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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