Differences

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--- cloudappliance/highavailabilitysetup [2019_10_29 00:36] – steven
+++ cloudappliance/highavailabilitysetup [2020_02_14 15:34] – [SME File Fabric HA Setup "2 x 2"] dan
@@ Line 1: / Line 1: @@
 ===== SME File Fabric HA Setup "2 x 2" =====
+== last edited on Feb.14, 2020 ==
 ==== Disclaimer ====
@@ Line 73: / Line 74: @@
 # systemctl stop httpd
 # systemctl stop cloudftp
+# systemctl stop crond
 # systemctl stop vsftpd
 </code>
@@ Line 78: / Line 80: @@
-==== Part II ====
+==== Part II - Database Servers ====
 === Configuring the Database Servers ===
 You must perform these steps to create a specialized database server from the standard SME appliance distribution. In this guide we also run memcached as a part of the DB server.
@@ Line 95: / Line 99: @@
 == crontab ==
-You must also disable some jobs in crontab, these should only run on one application server. Again, as root on smesql01 and smesql02:
+You must also disable some jobs in crontab. Again, as root on smesql01 and smesql02:
 <code>
 # crontab -e -u smestorage
@@ Line 402: / Line 406: @@
 <code>exit </code>
-==== Part III ====
+==== Part III - Application Servers ====
+<WRAP center round important 100%>
+If you will be using a load balancer to distribute traffic to your web servers, configure the load balancer to provide session stickiness.
+</WRAP>
 === Configure the application servers ===
 In this section, you change the application server's configuration to the database server by editing the PHP configuration directly from command line. By default, the database host is localhost.
 **These steps are repeated on both smeweb01 and smeweb02.**
@@ Line 452: / Line 462: @@
 == crontab ==
-You must also disable crontab on the smeweb02 server, crontab should only run from one application server.
+All of smestorage's cron jobs should run on one of the application  servers; only one of smestorage's cron jobs, logroller, should run on the other  application server.
 **As root on smeweb02 only:**
 <code>
@@ Line 458: / Line 468: @@
 </code>
-Place a # in front of the seven jobs listed in the crontab schedule. For a screenshot, refer to the DB section above.
+Place a # in front of six of the seven jobs listed in the crontab schedule; **do not place a # in front of the logroller job**.  For a screenshot, refer to the DB section above.
 Restart both servers, so on both smeweb01 and smeweb02, execute a reboot.