Anvil! Tutorial 3 - Revision history

Digimer: /* Determine multicast Address */

2016-11-19T16:48:17Z

Determine multicast Address

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-<span class="code"></span>
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 = Notes =

2016-11-19T16:47:40Z

Making ssh faster when the net is down

← Older revision		Revision as of 16:47, 19 November 2016
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	=== Making ssh faster when the net is down ===		== Making ssh faster when the net is down ==

	By default, the nodes will try to resolve the host name of an incoming ssh connection. When the internet connection is down, DNS lookups have to time out, which can make login times quite slow. When something goes wrong, seconds count and waiting for up to a minute for an SSH password prompt can be maddening.		By default, the nodes will try to resolve the host name of an incoming ssh connection. When the internet connection is down, DNS lookups have to time out, which can make login times quite slow. When something goes wrong, seconds count and waiting for up to a minute for an SSH password prompt can be maddening.

2016-11-19T16:47:25Z

Install

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 |style="white-space: nowrap;"|<syntaxhighlight lang="bash">
 yum install rsync pacemaker bridge-utils ntp corosync pcs wget gpm man vim screen mlocate syslinux bzip2 \
-             openssh-clients fence-agents-all fence-agents-virsh policycoreutils-python
+             openssh-clients fence-agents-all fence-agents-virsh policycoreutils-python drbd drbd-bash-completion \
 </syntaxhighlight>
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 === Making ssh faster when the net is down ===

2016-11-19T16:42:34Z

Adding LINBIT Repos

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-Now you can install DRBD!
+Done!
 == Install ==

2016-11-19T16:39:41Z

Install

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 |}
-== Install ==
+== Adding LINBIT Repos ==
 If you purchased full [https://my.linbit.com LINBIT support], you can add their repos in order to get DRBD 9 and associated tools.
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 </syntaxhighlight>
 |}
 Now run the tool interactively.
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2016-11-19T16:14:54Z

Adding LINBIT Repos

2016-11-19T15:29:38Z

2016-11-19T15:28:13Z

Install

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 !<span class="code">an-a03n01</span>
 |style="white-space: nowrap;"|<syntaxhighlight lang="bash">
-yum install rsync pacemaker bridge-utils ntp corosync pcs wget gpm man vim screen mlocate syslinux bzip2 openssh-clients fence-agents-all fence-agents-virsh policycoreutils-python
+yum install rsync pacemaker bridge-utils ntp corosync pcs wget gpm man vim screen mlocate syslinux bzip2 \
 </syntaxhighlight>
 |-
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 |style="white-space: nowrap;"|<syntaxhighlight lang="bash">
 <same>
 </syntaxhighlight>
 |}

2016-11-05T02:41:25Z

Initializing the Cluster

← Older revision		Revision as of 02:41, 5 November 2016
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	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	pcs cluster setup --name an-anvil-04 an-a03n01.alteeve.ca an-a03n02.alteeve.ca		pcs cluster setup --name an-anvil-03 an-a03n01.alteeve.ca an-a03n02.alteeve.ca
	</syntaxhighlight>		</syntaxhighlight>
	<syntaxhighlight lang="text">		<syntaxhighlight lang="text">
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	version: 2		version: 2
	secauth: off		secauth: off
	cluster_name: an-anvil-04		cluster_name: an-anvil-03
	transport: udpu		transport: udpu
	}		}

2016-11-05T02:32:09Z

Enable the pcs Daemon

← Older revision		Revision as of 02:32, 5 November 2016
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	Changing password for user hacluster.		Changing password for user hacluster.
	passwd: all authentication tokens updated successfully.		passwd: all authentication tokens updated successfully.
			</syntaxhighlight>

			Open up the firewall:

			<syntaxhighlight lang="bash">
			firewall-cmd --permanent --add-service=high-availability
			firewall-cmd --reload
			</syntaxhighlight>
			<syntaxhighlight lang="text">
	</syntaxhighlight>		</syntaxhighlight>