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From "Sean Busbey (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-3224) Shell should use nanos for auth timeout
Date Sat, 11 Oct 2014 08:17:34 GMT


Sean Busbey commented on ACCUMULO-3224:

are we concerned about the fall back case where System.nanosTime passes through System.currentTimeMillis
in a different set of units?

> Shell should use nanos for auth timeout
> ---------------------------------------
>                 Key: ACCUMULO-3224
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: shell
>            Reporter: Christopher Tubbs
>            Assignee: Christopher Tubbs
>             Fix For: 1.5.3, 1.6.2, 1.7.0
>         Attachments: 0001-ACCUMULO-3224-Use-nanoTime-in-the-shell-s-auth-timeo.patch
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
> I was looking at the code done for ACCUMULO-3221 and noticed that we're using the system
clock instead of the JDK's internal relative time, System.nanoTime(). This is a problem, because
any auth timeout that depends on the system clock can be easily bypassed by changing the system
> We can also do the time conversion more reliably with {{TimeUnit}} to avoid the potential
arithmetic bug identified in ACCUMULO-3221.

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