On Fri, Jun 11, 2021 at 9:53 AM Luca Toscano <[email protected]> wrote:
> Hi everybody, > > > https://engineering.linkedin.com/blog/2021/the-exabyte-club--linkedin-s-journey-of-scaling-the-hadoop-distr > is a nice blog post reading. There are some interesting follow ups in > my opinion: > > - Fair vs Non-Fair locking for the HDFS Namenode. IIUC this seems to > be a code change rather than a jvm setting tunable, but I am wondering > if others have experience with different locking mechanisms in > production for HDFS. > - Observer HDFS Namenode. IIUC this was introduced in Hadoop 2.10, it > would be nice if we could offer it via puppet for the docker > provisioner (if we don't already do it, I didn't find it). Having a > separate Namenode to handle read requests could be interesting for > busy clusters. Has anybody already deployed it? > Very interesting indeed! Thanks for sharing. Thanks, Roman.
