MariaDB ColumnStore 1.1.6 GA Release Notes
Release date: 7th September 2018
MariaDB ColumnStore 1.1.6 is a GA release of MariaDB ColumnStore. This is the fourth release of the MariaDB ColumnStore 1.1 series. This release of MariaDB ColumnStore provides improvements over the previous 1.1.5 GA release.
MariaDB ColumnStore 1.1.6 is a GA release.
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA for anything that is not working as expected so that we can fix it before we make the release available for the larger community. For general "how to questions" ask questions here or subscribe to mariadb-columnstore@googlegroups.com
Notable changes
Bugs and issues fixed
MCOL-970 - MariaDB's slow query log only logging vtable information
MCOL-1037 - Race condition in FIFO buffer
MCOL-1155 - NOT with null safe operator fails
MCOL-1195 - mcsapi BadUsage.AssertTableLock test creates phantom transaction
MCOL-1301 - mcsapi won't compile with Python3 in Debug mode in CentOS 7
MCOL-1421 - test200 needs tuning
MCOL-1445 - mcsapi Java test fails on Ubuntu 18.04 and Java 10
MCOL-1453 - mcsapi doesn't detect when WriteEngineServer has gone away
MCOL-1468 - CDC adapter: mxs_adapter doesn't measure transaction insert time as expected
MCOL-1472 - where does not properly evaluate case when case when on varchar columns
MCOL-1474 - PriorityThreadPool can crash
MCOL-1490 - Data-Adapter package has different names for RPM and DEB
MCOL-1491 - auth_pam.so plugin missing from server package
MCOL-1498 - Installation failed in Replication Distribution command
MCOL-1525 - Non-root Install - core dumps not working
MCOL-1527 - Incorrect 0 row(s) affected on delete with cross engine join
MCOL-1531 - ColumnStore fails to make inner join if using CASE in predicate.
MCOL-1535 - Case when~ vs case ~ when ~
MCOL-1545 - Compiler error in GCC 8.1
MCOL-1566 - mcsapi documentation build issue in CentOS 7
MCOL-1579 - ColumnStore as root crashes processes using shm
MCOL-1588 - javamcsapi ColumnStoreBulkInsert can't manually be garbage collected
MCOL-1594 - mxs_adapter requires -t to gracefully exit
MCOL-1595 - mxs_adapter state file is stored in the current directory
MCOL-1605 - sendAlarmReport error: InetStreamSocket::connect: connect() error: Connection timed
MCOL-1612 - python spark connector - broken
MCOL-1635 - insert into select crashes for a BLOB column
MCOL-1655 - Yacc debug hard coded on
MCOL-1664 - data-adatper centos7 package rename not executed
MCOL-1675 - Incorrect HWM calculation if the table's first column width > 1
MCOL-1684 - Performance Schema crashes prepared statement
MCOL-1705 - check hardcoded uses of root user for mysql
MCOL-1330 - Make ColumnStore work under valgrind
MCOL-1376 - Support Ubuntu 18.04
MCOL-1475 - Improve cross engine error handling
MCOL-1484 - Use condition pushdown in I_S tables
MCOL-1521 - Java - mcsapi - introduce new function getJavaMcsapiVersion()
MCOL-1524 - Backward / Forward compatibility test for javamcsapi and mcsapi
MCOL-1551 - Ability to configure ColumnStore to use domain names instead of IP addresses
MCOL-1591 - add UMASK check to ColumnStore Cluster Tester script
MCOL-1596 - mxs_adapter multi-table support
MCOL-1661 - Transform CDC events into UPDATE and DELETE statements
MCOL-1145 - One step configuration of Single Server Node
MCOL-1146 - One step configuration of Multi Server Node
MCOL-1439 - Documentation for Python API missing
MCOL-1615 - Merge MariaDB 10.2.17
MCOL-1617 - remove generated build doc from mcsapi in favor of its Readme.md in Github
MCOL-1646 - Update ColumnStore docs for 18.04
MCOL-1496 - Joiner array boundary bug
In addition, all bugs fixed in MariaDB ColumnStore 1.1.5 and earlier are implicitly included in this release.
Upgrade
The following procedure outlines upgrading a 1.1.5 ColumnStore install to 1.1.6:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
Known issues and limitations
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-271 empty string values are treated as NULL. This means you cannot insert empty values into a NOT NULL string column.
MCOL-365: Log files created by load data infile remain in the bulk/data/log and /tmp directories. If storage is a concern these can safely be removed.
MCOL-540 : In a non root Ubuntu install with local query enabled, the PM servers crash and restart on table creation.
MCOL-624 :MariaDB 10.2 WF create MEDIAN, PERCENTILE_CONT and PERCENTILE_DISC Window functions. MariaDB ColumnStore 1.1 was rewritten to use the MariaDB 10.2 server parser code which does not support the percentile window functions. This will be added in a later release. A median function has been provided instead as part of the User Defined Aggregate Function framework that provides similar functionality or can be adapted to support percentiles other than 0.5.
MCOL-631 :Create table caused primproc crashed for a specific configuration
MCOL-643 :Implement ha_calpont_impl_rnd_pos. Sorting of long text columns may fail.
MCOL-695 :Implement joins between CHAR/VARCHAR and INT columns. ColumnStore now fails more consistently on incompatible join types. Explicit type casts must be used if this error is hit.
MCOL-713 : Some functions return "The maximum row size" error when TEXT/LONGTEXT is used in a table
MCOL-1224: post-install non-root has incorrect permissions for /etc/rc.local
MCOL-1225: LD_LIBRARY_PATH not set correctly in centos6 non-root install
MCOL-1654: The QueryStats table is missing
/dev/shm may be set to 755 permissions prior to 1.1.6 which could cause problems with other non-root processes, from 1.1.6 onwards ColumnStore does not try to do this. You should change this to 777 if it is causing problems with your installation.
The current logging default generates full verbose debug logs. This can be controlled by making logging configuration changes as described here.
While Millisecond and Microsecond storage is supported for datetime, time and timestamp columns, at this time the query results cannot return millisecond and microseconds.
UTF-8 Limitation
UTF-8 must be declared at the table level if the instance has been set up with a UTF-8 profile. Tables created with a non-matching character set will yield indeterminate results.
Viewing SQL output should be done using client software that supports UTF-8 character sets.
UTF-8 characters are not supported in object names.
Known security issues and fixes are documented here.
Documentation
MariaDB ColumnStore Documentation
Packaging
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.1.6 GA version.
The supported OS for the GA version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.1.6". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
Source code
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
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