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Known Errors in CentOS and RHEL 6.6, 7.0, 7.1: Vertica Impact

Support Notice

The following is a support notice as of October 2017.

Warnings

Known errors in CentOS/RHEL 6.6, 7.0, 7.1 could impact the stability of your Vertica database. If you encounter these errors, Vertica recommends contacting Red Hat or reverting to a Vertica-supported CentOS/RHEL version.

The known CentOS and RHEL errors are listed below, along with additional information, including the version in which they are fixed. Not all bugs are available for public view. Those that require a Red Hat login to access are marked with an asterisk (*).

Red Hat Issue Component Version Title Fix information

Bug 1305406*

glibc

RHEL 7

Invalid fastbin entry (free), missing glibc patch

Fixed with glibc-2.17.106

Bug 1027101 glibc RHEL 6.* Invalid fastbin entry (free), missing glibc patch Fixed wilh glibc-2.12.1.149 on RHEL 6.x. See https://access.redhat.com/errata/RHSA-2014:1391

Bug 1276753

glibc

RHEL 7

malloc: arena free list can become cyclic, increasing contention

Fixed with RHEL 7.3 / 2.17-157

Bug 1264189*

glibc

RHEL 6

malloc: arena free list can become cyclic, increasing contention

Fixed with glibc-2.12-1.192

Bug 1305620

kernel

RHEL 7

Kernel panic/crash at page_lock_anon_vma_read (which then calls down_read_trylock() which takes a memory fault at instruction offset 0x9.)

For information, see https://access.redhat.com/solutions/2779851. If you get this error, Red Hat recommends that you disable transparent hugepages.

Bug 1205862*

kernel

RHEL 7

Kernel soft lockups

Fixed on kernel version: kernel-3.10.0-327.

Bug 11261

glibc

RHEL 6 and 7

malloc uses excessive memory for multi-threaded applications

Determination: Works as expected
Bug 1386323* glibc RHEL 6.6, 7.0, 7.1 Upgrading to RHEL 6.6, 7.0 or 7.1 may result in an application, using futexes, appearing to stall in futex_wait()

Red Hat Enterprise Linux 6

This issue was originally tracked in a private bugzilla by Red Hat and has subsequently been addressed. In order to fix this issue, an update to the following kernel version (or later) within 6.6 will be required: kernel-2.6.32-504.16.2.el6, released with RHSA-2015-0864. RHEL6.7GA and later already include the fix for this issue. Red Hat Enterprise Linux 7

This issue has been fixed in a RHEL7.1.z errata. Update the kernel to 3.10.0-229.7.2.el7 (released with RHSA-2015-1137) or later.

For More Information

https://access.redhat.com/solutions/1386323

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