mysql update warnings (#212)
* mysql-quirk
Co-authored-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* Update source/upgrading/upgrade/mysql.rst
Co-authored-by: Andrija Panic <45762285+andrijapanicsb@users.noreply.github.com>
Co-authored-by: Daan Hoogland <dahn@onecht.net>
Co-authored-by: Andrija Panic <45762285+andrijapanicsb@users.noreply.github.com>
diff --git a/source/upgrading/index.rst b/source/upgrading/index.rst
index eb368a2..dc9e904 100644
--- a/source/upgrading/index.rst
+++ b/source/upgrading/index.rst
@@ -31,12 +31,13 @@
.. note::
For information on the API changes and issues fixed in this release, please see the Release Notes section of the documentation
-
Contents:
.. toctree::
:maxdepth: 1
+ upgrade/mysql
+ upgrade/valid_source
upgrade/upgrade-4.15
upgrade/upgrade-4.14
upgrade/upgrade-4.13
@@ -55,4 +56,3 @@
.. upgrade/upgrade-4.0
.. upgrade/upgrade-3.0.x
.. upgrade/upgrade-2.2.14
- upgrade/valid_source
diff --git a/source/upgrading/upgrade/mysql.rst b/source/upgrading/upgrade/mysql.rst
new file mode 100644
index 0000000..bbbc2d1
--- /dev/null
+++ b/source/upgrading/upgrade/mysql.rst
@@ -0,0 +1,32 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information#
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+MySQL upgrade problems
+======================
+
+With certain MySQL versions (see below), issues have been seen with "cloud.nics" table's
+column type (which was not updated properly during CloudStack upgrades, due to MySQL limitations),
+which eventually may lead to exception seen in the management server logs, causing users to
+not be able to start any VM.
+
+The following SQL statement needs to be manually executed in order to fix such issue:
+
+ .. parsed-literal::
+ALTER TABLE nics MODIFY COLUMN update_time timestamp DEFAULT CURRENT_TIMESTAMP;
+
+The issue is known to affect the following MySQL server versions:
+
+ - 5.7.34 or later
+ - 8+
