Differences
This shows you the differences between two versions of the page.
|
galera_url [2012/06/07 12:20] root [Cluser address] |
galera_url [2013/02/05 19:26] (current) teemu Changed pc.wait_prim value to "no" |
||
|---|---|---|---|
| Line 14: | Line 14: | ||
| Cluster address should be either | Cluster address should be either | ||
| * an address of __ANY__ current cluster member if you want to connect node to existing cluster OR | * an address of __ANY__ current cluster member if you want to connect node to existing cluster OR | ||
| + | * a comma-separated list of such possible cluster members (it is assumed that list members can belong to no more than 1 //primary component//) OR | ||
| * an empty string if you want this node to be the first in a //new// cluster (i.e. no preexisting nodes to connect to). | * an empty string if you want this node to be the first in a //new// cluster (i.e. no preexisting nodes to connect to). | ||
| It can be either IP address or a DNS name optionally followed by port number. | It can be either IP address or a DNS name optionally followed by port number. | ||
| + | |||
| + | <WRAP center round tip 60%> | ||
| + | As of version 2.2 Galera supports a comma-separated list of cluster members in the cluster address like: | ||
| + | ''%%gcomm://node1,node2:port2,node3?key1=value1&key2=value2...%%'' | ||
| + | </WRAP> | ||
| <WRAP center round alert 60%> | <WRAP center round alert 60%> | ||
| Only use empty ''%%gcomm://%%'' address when you want create a **NEW** cluster. Never use it when your intention is to reconnect to an existing one. Therefore never leave it hardcoded in any configuration files. | Only use empty ''%%gcomm://%%'' address when you want create a **NEW** cluster. Never use it when your intention is to reconnect to an existing one. Therefore never leave it hardcoded in any configuration files. | ||
| + | </WRAP> | ||
| + | |||
| + | <WRAP center round tip 60%> | ||
| + | One way to avoid editing my.cnf in order to remove ''%%gcomm://%%'' is to start all cluster nodes with the following URL: | ||
| + | ''%%gcomm://node1,node2:port2,node3?pc.wait_prim=no&...%%'' | ||
| + | |||
| + | (note the ''%%'pc.wait_prim=no'%%'' option which makes the node to wait for primary component indefinitely.) Then bootstrap the primary component by setting ''%%'pc.bootstrap=1'%%'' on any one of the nodes. | ||
| </WRAP> | </WRAP> | ||
