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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-4069) Services failing to renew Kerberos ticket
Date Thu, 03 Dec 2015 21:51:11 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-4069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Elser resolved ACCUMULO-4069.
----------------------------------
    Resolution: Fixed

> Services failing to renew Kerberos ticket
> -----------------------------------------
>
>                 Key: ACCUMULO-4069
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4069
>             Project: Accumulo
>          Issue Type: Bug
>          Components: gc, master, monitor, tserver
>    Affects Versions: 1.7.0
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Blocker
>              Labels: kerberos
>             Fix For: 1.7.1, 1.8.0
>
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> Got a report from a user that Accumulo services were dying after a period of time that
was suspiciously similar to the Kerberos ticket lifetime.
> A Kerberos ticket lifetime is the amount of time that the ticket is valid (obtained from
password or keytab). There is also a renewable lifetime associate with each ticket. Within
the renewable lifetime duration, clients can "renew" their ticket for another "ticket lifetime"
duration. For each, a lifetime of one day and a renewable lifetime of seven days: a ticket
is valid for one day, but clients can renew that ticket up to 6 days after the original ticket
expires.
> I do recall seeing a line of code in our services that has a comment saying it should
spawn a thread specifically for this purpose, but I don't ever recall seeing that thread in
thread dumps. My hunch is that the thread just isn't getting launched and we're not doing
renewals



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