andrijapanicsb commented on a change in pull request #212: URL: https://github.com/apache/cloudstack-documentation/pull/212#discussion_r637901224
########## File path: source/upgrading/upgrade/mysql.rst ########## @@ -0,0 +1,36 @@ +.. 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 +====================== + +Users who may upgrade their MySQL server after upgrading to Apache +CloudStack 4.15 or later, may need to run the following SQL query to +fix an issue with "cloud.nics" table's column type which may lead to +exception seen in the management server logs. Users who have already +upgraded their MySQL server prior to upgrading to Apache CloudStack +4.15 may not need this as this query runs as part of the 4.14.x to +4.15.0.0 database upgrade path. + +.. note:: + The issue has not been seen in cases where the database was upgraded while on CloudStack version 4.14. Review comment: ```suggestion 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: ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
