Updated rhs-hadoop packages that adds an enhancement and fixes numerous bugs arenow available for Red Hat Gluster Storage 3.1.
Red Hat Gluster Storage is software-only, scale-out storage that provides flexible and affordable unstructured data storage for an enterprise. GlusterFS, a key building block of Red Hat Gluster Storage, is based on a stackable user-space design and can deliver exceptional performance for diverse workloads. GlusterFS aggregates various storage servers over network interconnections into one large, parallel network file system. This advisory addresses the following bug fixes:* Previously, directory with many small files were lining up files in the listing by brick. As a consequence, there was a decrease in performanceof Hadoop jobs as the files were processed in the order of the listing. The job was focusing on a single brick at a time. With this fix, the files are sorted by directory listing and not by brick to enhance theperformance. (BZ#1093838)* Previously, in a cluster, if a few nodes had similar names, some of the nodes could be inadvertently skipped. With this fix, all the nodes areprocessed regardless of naming similarities. (BZ#1205886)* Previsouly, usage of https for Ambari was not supported. As a consequence,enable_vol.sh and disable_vol.sh failed. With this fix, the user can choseto use either http or https with Ambari and the scripts automatically detect this. (BZ#1162181)* Previously, setting entry-timeout=0 eliminated some caching and decreasedthe performance. But this was the only setting which worked due to a bugin the vfs kernel. With this fix, and the fact that the vfs bug has alsobeen fixed, eliminating setting of the entry-timeout and attribute-timeoutoptions (and thus using their default values) provides better performance.(BZ#1209222)* Previously, the hdp 2.1 stack was hard-coded and hence only the hdp 2.1stack was visible. With this fix, all “glusterfs enabled” hdp stacks willbe visible in the Ambari installation wizard. (BZ#1217852)* Previously, users in the “hadoop” group were unable to write to hivedirectory. With this fix these users can now write to hive directory. (BZ#1221344)It also adds the following enhancement:* The previous HTB version of the scripts have been significantly rewrittento enhance the modularity and supportability. With some basic understandingof shell command syntax, you can use the auxiliary supporting scriptsavailable at bin/add_dirs.sh and bin/gen_dirs.sh directories. (BZ#1062401)All users of Red Hat Gluster Storage are advised to install these updatedpackages.
Before applying this update, make sure all previously released erratarelevant to your system have been applied.This update is available via the Red Hat Network. Details on how touse the Red Hat Network to apply this update are available athttps://access.redhat.com/articles/11258
1062401 – RFE: move code for directory tree setup on hcfs to standalone script1093838 – Brick-sorted order of filenames in RHS directory harms Hadoop mapreduce performance1195659 – rhs-hadoop package is missing dependencies1217852 – enable all HDP/GlusterFS stacks1221344 – Change hive/warehouse perms from 0755 to 0775
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