+ common-dev bcc: general Moving this to the more appropriate common-dev@
I personally like to run a KDC on my dev box and build/deploy a pseudo-distributed cluster right there. This lets me make principals at will, adjust krb5 settings as I please, regenerate keytabs, etc. Setting up a local MIT KDC is actually quite easy. -- Aaron T. Myers Software Engineer, Cloudera On Thu, Mar 8, 2012 at 4:05 PM, Alejandro Abdelnur <t...@cloudera.com>wrote: > Why not just attach a debugger from an IDE (with the right hadoop sources) > to DN JVM? > > On Thu, Mar 8, 2012 at 1:16 AM, Evert Lammerts <evert.lamme...@sara.nl > >wrote: > > > Hi list, > > > > I've spent the whole of yesterday debugging a DN to find and fix a > trivial > > bug (HDFS-3059). Difficulty is that we have Kerberos enabled and I didn't > > know how to emulate that environment locally. So what I did was editing > the > > source, building the jars, deploying them on my NN and a single DN, > > starting deamons, and looking at my debug statements. > > > > Obviously not the most optimal way. How do you debug deamons with > Kerberos > > enabled? Do you add your development machine to the cluster, give it a > > principal, and configure the network? Any tips / best practices? I expect > > we're going to need this more often since we're just bringing up a fair > > sized multi-tenant production environment (~70 machines) and I guess this > > won't be the only time we'll want to see what exactly happens. > > > > Thanks, > > Evert > > >
