I do not know about the error message you saw. StatusConsoleListener
is not an Accumulo class, but it looks like it's a log4j one. My best
guess is that during your upgrade, you did not migrate your log4j
config files over to be based on the log4j2 ones we have as an example
in the 2.1 tarball. It's possible that there's some log4j
configuration issue that's preventing you from seeing the reason why
the Monitor failed to start.

To troubleshoot, I would compare your log4j config with what we ship
in the 2.1 tarball and also check to see if you've done any log4j
config overrides in the system properties or environment variables
that control log4j.

On Tue, Sep 12, 2023 at 8:10 PM Vincent Russell
<vincent.russ...@gmail.com> wrote:
>
> Thank you Christopher,
>
> Don't worry.  I definitely planned on testing an upgrade on a test
> cluster.   :)
>
> I just upgraded a test cluster and everything appeared to go smoothly
> except for one thing.
>
> I am able to login to the accumulo shell and I can see the table that I
> created before the upgrade exists and I can scan that table.
>
> Before the upgrade the monitor was running on port 9995, but now nothing
> appears to be running on that port.    Nothing in the monitor log exception:
>
> ERROR StatusConsoleListener Unable to send HTTP in appender [MonitorLog]
> IllegalARgumentException: invalid URI schema <<hostname>>
>
>
> This seems not great, but I am not sure if it's related.
>
> It doesn't look like the monitor is running on another port.   Any
> suggestions for debugging this?
>
> Thanks,
> Vincent
>
>
>
> On Wed, Aug 30, 2023 at 7:09 PM Christopher <ctubb...@apache.org> wrote:
>
> > My understanding is that the upgrade of ZK is pretty easy... but I
> > would consult the ZooKeeper community for advice on that, since they
> > are the experts. For Accumulo's part, I believe 2.0 worked fine with
> > newer versions of ZK (3.5+), so you should be able to update ZK first
> > if you didn't want to do them at the same time. There may be some
> > things you might need to do to ensure your classpath is set up
> > correctly for Accumulo if using it with 2.0, since 2.0 might assume ZK
> > 3.4 jar locations. I don't recall the specifics, but I remember it
> > wasn't that bad. fluo-uno had used newer ZK versions with 2.0 for a
> > while. The necessary config changes to support that might even still
> > be scripted in its repo.
> >
> > I'm really not familiar with Hadoop upgrades, but as far as Accumulo
> > is concerned, it would probably treat both 3.3.1 and 3.3.5 as
> > essentially equivalent. I don't think anything substantially changed
> > that would cause Accumulo to even notice a difference. Seems like it
> > would just be a quick shutdown, update the classpath, restart, for
> > Accumulo. For Hadoop, you may have some upgrade tasks... I'd check
> > with the Hadoop community first. You could probably upgrade Hadoop
> > before or after you upgrade Accumulo for this one. I don't think it's
> > going to matter much.
> >
> > If you're concerned about problems you might encounter, I would run
> > through the upgrades on a small test instance first, just to practice.
> > If you run into a specific problem doing that, we could probably offer
> > more specific insight, having probably seen it before.
> >
> >
> > On Wed, Aug 30, 2023 at 4:50 PM Vincent Russell
> > <vincent.russ...@gmail.com> wrote:
> > >
> > > Thank you Christopher.
> > >
> > > Does there exist some documentation for upgrading zookeeper from 3.4.14
> > to
> > > 3.8.1?   Is there a preferred upgrade path?
> > >
> > > Also...Is there any documentation on how this affects hadoop when using
> > > high availability?   We are using hadoop 3.3.1.  I want to upgrade to
> > > hadoop 3.3.5, but I didn't know if that should be done as part of
> > upgrading
> > > accumulo or later.
> > >
> > > Any experience folks have would be greatly appreciated.
> > >
> > > Thank you,
> > > Vincent
> > >
> > > On Thu, Aug 24, 2023 at 12:58 PM Christopher <ctubb...@apache.org>
> > wrote:
> > >
> > > > The correct link seems to be
> > > >
> > > >
> > https://accumulo.apache.org/docs/2.x/troubleshooting/zookeeper#zookeeper-acls
> > > >
> > > > It looks like both `bin/accumulo dump-zoo` and `bin/accumulo-util
> > > > dump-zoo` will do the same thing. It was originally a disconnected
> > > > utility that existed for convenience, but was incorporated into our
> > > > regular tooling recently as part of an effort to make all these
> > > > utilities more easily discoverable and executable. I don't think we
> > > > realized that it already had a convenient and documented entry point.
> > > > We were just looking for utilities with a "main" method. Either should
> > > > work fine. They call the same code.
> > > >
> > > > On Thu, Aug 24, 2023 at 11:04 AM Vincent Russell
> > > > <vincent.russ...@gmail.com> wrote:
> > > > >
> > > > > Also the link to:
> > > > >
> > > > > https://accumulo.apache.org/docs/2.x/troubleshooting/ZooKeeper#ACLs
> > > > >
> > > > > is not resolving.
> > > > >
> > > > > What needs to be done at this step?
> > > > >
> > > > >
> > > > > Thanks,
> > > > > Vincent
> > > > >
> > > > >
> > > > > On Thu, Aug 24, 2023 at 10:36 AM Vincent Russell <
> > > > vincent.russ...@gmail.com>
> > > > > wrote:
> > > > >
> > > > > > Hello,
> > > > > >
> > > > > > I'm practicing going to the upgrade instructions from 2.0.1 to
> > 2.1.1
> > > > and I
> > > > > > wanted to confirm that the zoo-dump command is run via the
> > > > accumulo-util
> > > > > > command and not via accumulo.
> > > > > >
> > > > > > The instructions say:
> > > > > >
> > > > > > $ACCUMULO_HOME/bin/accumulo dump-zoo --xml --root /accumulo | tee
> > > > > > PATH_TO_SNAPSHOT
> > > > > >
> > > > > > Thank you,
> > > > > > Vincent
> > > > > >
> > > >
> >

Reply via email to