At Thu, 10 Mar 2022 12:46:43 -0500 Nathan Stratton Treadway
<natha...@ontko.com> wrote:
>
> On Thu, Mar 10, 2022 at 09:55:30 -0500, Robert Heller wrote:
> > Here is the Java fragment:
> >
> > public class FlushOldVaults extends BackupVault {
> > private static final String AMTAPE = "/usr/sbin/amtape";
> > private static final String AMTAPEOPT1 = "-otpchanger=vault_changer";
> > private static final String AMTAPEOPT2 = "-ointeractivity=";
>
> You would probably be able to confirm this by looking in the amanda
> log/debug files for the amtape process (i.e.
> /var/log/amanda/server/<CONFIG>/amtape.*.debug on Ubuntu) , but I'm pretty
> sure that you do actually need the empty argument in order to disable
> the interactivity, something like
> private static final String AMTAPEOPT2 = "-ointeractivity=''";
It does not like the empty argument, amtape throws a error status and the
Java subprocess returns a failure status. It is "happy" with what I have,
except it hangs on the broken tape.
>
> (I am not particularly certain that interactivity is your specific
> problem, but it seemed a plausible explaination and one that that was
> fairly easy to test out...)
>
>
> > if (!p.waitFor(60L, java.util.concurrent.TimeUnit.SECONDS)) {
> > System.err.printf("*** FlushOldVaults.amtape(): process
> > timeout\n");
> > String kill[] = new String[2];
> > kill[0] = "/bin/kill";
> > Long j = new Long(p.pid());
> > kill[1] = j.toString();
> > Process killproc = Runtime.getRuntime().exec(kill);
> > killproc.waitFor();
>
> Note that in order to use the strace debugging, you'll probably need to
> disable this timeout+kill logic -- otherwise the amtape process won't
> hang out long enough for you to figure out what it's trying to do when
> when it's "stuck"....
The timeout never times out. The amtape process goes into Sleep state and the
Java program just hangs.
>
>
> Nathan
>
>
>
>
> ----------------------------------------------------------------------------
> Nathan Stratton Treadway - natha...@ontko.com - Mid-Atlantic region
> Ray Ontko & Co. - Software consulting services - http://www.ontko.com/
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>
>
>
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