Differences

This shows you the differences between two versions of the page.

--- projects:maint-06-30-2017 [2017/06/26 09:56]
Hans
+++ projects:maint-06-30-2017 [2017/09/12 14:19] (current)
dutran [Google Dir Sync Update]
@@ Line 1: / Line 1: @@
+====== Summer Maintenance Schedule ======
+==== Gitlab PostgresSQL Upgrade Maintenance Window====
+  * SYSTEM: Gitlab PostgreSQL Server
+  * DATE:  Tuesday, August 29, 2017
+  * START TIME:  0800
+  * DURATION:  2 hours
+(Please note this is an estimate;  systems may be up sooner or later
+than expected, due to unforeseeable circumstances.)
+**AFFECTS:**
+During this downtime window, the ICS Gitlab server will be unavailable.
+**REASON:**
+The PostgreSQL server used by the Gitlab server is being moved to another
+host where a newer version of PostgreSQL has been installed. We need
+about two hours to make the full conversion.
+<code>
+                  pgsql 9.5 -> pgsql 9.6
+</code>
+Please send any questions or concerns to helpdesk@ics.uci.edu.
+==== Mail Delivery Server Upgrade Maintenance Window====
+On Tuesday, 8/29, we will be deploying a new mail delivery agent.
+**Affects:  **
+During this maintenance window a new mail delivery server will replace the older mail delivery servers.  Email that is delivered locally may be delayed by up to an hour during the cut over.  No mail will be lost and this will will only affect email that is delivered locally.
+**Reason:**
+Upgrades are required in order to replace underlying CentOS6 and Puppet2 host infrastructure.
+==== MySQL Server Upgrade====
+  * SYSTEM:     ICS MySQL Server
+  * DATE:       8/30
+  * START TIME: 2100
+  * DURATION:   4 hours
+(Please note this is an estimate;  systems may be up sooner or later
+than expected, due to unforeseeable circumstances.)
+**AFFECTS:**
+During this downtime window, the ICS MySQL server will be unavailable
+or available read-only.   Dependent services such as websites may be
+unavailable or unable to pull up information from the MySQL server during this
+period.
+**REASON:**
+The MySQL server is being upgraded and we need about four hours to
+make the full conversion.  The follow MySQL Server attributes will be improved:
+                  CentOS6 -> CentOS7
+                  MySQL 5.6 -> MySQL 5.7(.18)
+CPUs -> 16 CPUs
+GB RAM - > 32 GB RAM
+The new MySQL sever is currently available as mysql4.ics.uci.edu.  All MySQL
+users are encouraged to test out their applications against this new machine.
+Please send any questions or concerns to helpdesk@ics.uci.edu.
 ====== ICS Summer Maintenance (6/27/2017) ======
@@ Line 23: / Line 91: @@
 **Impact**:  Occasional service outages
-All CentOS and Ubuntu hosts will received the latest updates in the week prior to maintenance day.  Hosts that have been up for longer than six months will be rebooted during the day.  The following hosts will be
+**Updated infromation:  ** Due to a critical vulnerability released last week, all user accessible CentOS and Ubuntu hosts have recieved the latest OS and security updates and WILL be rebooted during this maintenance period.
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-|paul-mcgann-v0.ics.uci.edu|nimbus.ics.uci.edu| |
 ~~COMPLEX_TABLES~~
@@ Line 142: / Line 97: @@
 ==== MailScanner Upgrade ====
-**Impact:** Mail delivered to ICS Spools will be delayed.   **Impact:** Mail delivered resent to off campus ISP such as ICS Gsuites will not be delayed.
+**Impact:**
+    * Mail delivered to ICS Spools will be delayed.
+    * Mail delivered resent to off campus ISP such as ICS Gsuites will not be delayed.
 The schools MailScanner will be upgraded to the latest version.
@@ Line 158: / Line 116: @@
  ====
-\\
+==== Haproxy ====
+Retired 128.195.1.86 and 128.195.1.87 from haproxylb servers and moved them to haproxy