RHBA-2019:3256 - Bug Fix Advisory

Topic

An updated gluster-block package that fixes one bug is now available for
Red Hat OpenShift Container Storage 3.11 Batch 4 Update.

Description

gluster-block is a distributed management framework for block devices, provided as a command line utility. It aims to make Gluster-backed block storage creation and maintenance as simple as possible. gluster-block can provision block devices and export them as iSCSI LUNs across multiple nodes and uses iSCSI protocol for data transfer as SCSI block/commands.

Block storage allows the creation of high-performance individual storage units. unlike the traditional file storage capability that glusterfs supports, each storage volume/block device can be treated as an independent disk drive, so that each storage volume/block device can support an individual file system.

This advisory fixes the following bug:

• With this update, tcmu-runner and libtcmu are linked to the tcmalloc library instead of default glibc allocator, which provides improvements in the I/O performance. (BZ#1722434)

Users of gluster-block are advised to upgrade to these updated packages,
which fixes this bug.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Gluster Storage Server for On-premise 3 for RHEL 7 x86_64

Fixes

• BZ - 1699209 - gluster-blockd fails to comes up on a fresh install setup of OCP 3.11 + OCS 3.11.2
• BZ - 1722434 - tcmu-runner: Link against tcmalloc for improved small IO performance
• BZ - 1728645 - wait for gluster-blockd termination which is running in background before restarting it through systemd

CVEs

(none)

References

(none)