When I implemented AMQ on EFS, EFS only had optimistic locking so the pluggable locker was needed. I can no longer find reference to it, and AWS has made significant changes to EFS locking so it may not be necessary anymore. Thanks, -Tom
> On Jul 21, 2018, at 6:25 AM, Tim Bain <tb...@alumni.duke.edu> wrote: > > Third reply, hopefully this is the last thing I missed. > > If pluggable lockers are required in order to use EFS, they would be > required irrespective of which version of ActiveMQ you use. However, the > EFS FAQ says that EFS supports NFS 4.1 locking semantics, which sounds to > me like pluggable lockers would not be required. But I've not tested that, > so it would be great if you could let us know how it works when you test > your setup. > > Thanks, > Tim > > On Sat, Jul 21, 2018, 7:19 AM Tim Bain <tb...@alumni.duke.edu> wrote: > >> I forgot to answer your other question. >> >> That just means that you have to configure the path for the KahaDB data >> directory (in activemq.xml) to be a path under your EFS mount. >> >> Tim >> >> On Sat, Jul 21, 2018, 7:17 AM Tim Bain <tb...@alumni.duke.edu> wrote: >> >>> The bug I linked to, which addresses the fact that EFS is so large that >>> the ActiveMQ code believes it has a negative size, was fixed in 5.15.0, so >>> I would expect 5.14.3 not to work. But YMMV if EFS is reporting a different >>> amount of free space today than it did when that bug was submitted. >>> >>> Tim >>> >>> On Fri, Jul 20, 2018, 2:22 PM avmpt <patelak...@vmware.com> wrote: >>> >>>> I am using a custom docker image rather than any of the ones available >>>> online. The config uses a base os image and then has the following >>>> activemq >>>> settings: >>>> ------------------------------------------------------- >>>> >>>> ENV ACTIVEMQ_VERSION 5.14.3 >>>> ENV ACTIVEMQ apache-activemq-$ACTIVEMQ_VERSION >>>> >>>> ENV ACTIVEMQ_HOME /opt/activemq >>>> >>>> RUN tdnf -y install tar gzip >>>> >>>> RUN set -x && \ >>>> mkdir -p /opt && \ >>>> curl -s -S >>>> >>>> https://archive.apache.org/dist/activemq/$ACTIVEMQ_VERSION/$ACTIVEMQ-bin.tar.gz >>>> | tar xvz -C /opt && \ >>>> ln -s /opt/$ACTIVEMQ $ACTIVEMQ_HOME && \ >>>> useradd -r -M -d $ACTIVEMQ_HOME activemq >>>> >>>> RUN chmod 764 $ACTIVEMQ_HOME >>>> COPY activemq.xml $ACTIVEMQ_HOME/conf/ >>>> WORKDIR $ACTIVEMQ_HOME >>>> >>>> CMD ["/bin/sh", "-c", "bin/activemq console"] >>>> >>>> ------------------------------------------------------- >>>> >>>> For this version of AMQ (5.14.3) would it still be possible to setup the >>>> EFS >>>> without pluggable storage lockers? Also can you elaborate about changing >>>> the >>>> data directory to being under the efs mount? I'm not sure I understand >>>> that >>>> part. Thanks! >>>> >>>> >>>> thall wrote >>>>> There are a number of docker images for activemq, you will need to >>>> follow >>>>> the documentation for that docker image. >>>>> Make sure your docker image is using the latest version of activemq. >>>>> You are going to need to change the data directory to be under the efs >>>>> mount, and you are going to have to configure a pluggable storage >>>> locker >>>>> as well. >>>>> >>>> https://cwiki.apache.org/confluence/display/ACTIVEMQ/Pluggable+storage+lockers >>>>> < >>>> https://cwiki.apache.org/confluence/display/ACTIVEMQ/Pluggable+storage+lockers> >>>> ; >>>>> https://activemq.apache.org/pluggable-storage-lockers.html >>>>> >>>>> -Tom >>>>> >>>>>> On Jul 18, 2018, at 3:47 PM, avmpt < >>>> >>>>> patelakash@ >>>> >>>>> > wrote: >>>>>> >>>>>> I would like to use EFS as the shared file system when I set up a >>>>>> master/slave broker pair. What changes would I need to make to the >>>>>> persistence adapter to use the mounted EFS path? >>>>>> >>>>>> When I have >>>>>> >>>>> <persistenceAdapter> >>>>>> >>>>> <kahaDB directory="${activemq.data}/kahadb"/> >>>>>> >>>>> </persistenceAdapter> >>>>>> >>>>>> Would I need to change it to the path where EFS is mounted? Are there >>>> any >>>>>> additional changes required? My activemq brokers are both docker >>>>>> containers >>>>>> so I'm not sure how exactly this would affect my setup. Thanks! >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Sent from: >>>>>> http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> Sent from: >>>> http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html >>>> >>>
