Created
October 21, 2015 06:33
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-module(mnesia_cluster_console). | |
-export([ join_cluster/2 | |
, join_cluster/1 | |
, reverse_join_cluster/1 | |
, reverse_join_cluster/2 | |
, join_cluster_do/2 | |
, forget_node_from_cluster/1 | |
, cluster_status/0 | |
, get_all_nodes/0 | |
, get_disc_nodes/0 | |
, get_ram_nodes/0 | |
, get_running_nodes/0]). | |
reverse_join_cluster(Node) -> | |
reverse_join_cluster(Node, disc). | |
reverse_join_cluster(Node, Type) -> | |
LocalNode = erlang:node(), | |
rpc:call(Node, mnesia_cluster_console, | |
join_cluster_do, [LocalNode, Type]). | |
join_cluster(Node) -> | |
join_cluster(Node, disc). | |
join_cluster(Node, Type) -> | |
case catch ensure_node(Node) of | |
{error, "clustered, plz reverse join"} -> | |
reverse_join_cluster(Node, Type); | |
{error, Error} -> | |
{error, Error}; | |
ok -> | |
join_cluster_do(Node, Type) | |
end. | |
join_cluster_do(Node, Type) -> | |
case mnesia_cluster_utils:is_clustered() of | |
true -> | |
ingore; | |
_ -> | |
stopped = mnesia:stop(), | |
mnesia_cluster_utils:join_cluster(Node, Type), | |
ok = mnesia:start(), | |
ok = tentative_keeper_utils:add_local_copy_from_remote(), | |
ok | |
end. | |
forget_node_from_cluster(Node) -> | |
case catch mnesia_cluster_utils:forget_cluster_node(Node, false) of | |
{error, {failed_to_remove_node, Node, | |
{active,"Mnesia is running", Node}}} -> | |
{error, "This node's mnesia is running"}; | |
{error, {not_a_cluster_node, | |
"The node selected is not in the cluster."}} -> | |
ok; | |
ok -> | |
ok | |
end. | |
cluster_status() -> | |
[A, B | _ ] = mnesia_cluster_utils:status(), | |
[A, B]. | |
get_all_nodes() -> | |
mnesia_cluster_utils:cluster_nodes(all). | |
get_disc_nodes() -> | |
mnesia_cluster_utils:cluster_nodes(disc). | |
get_ram_nodes() -> | |
mnesia_cluster_utils:cluster_nodes(ram). | |
get_running_nodes() -> | |
mnesia_cluster_utils:cluster_nodes(running). | |
ensure_node(Node) -> | |
case Node =:= erlang:node() of | |
true -> | |
erlang:throw({error, "can not join self"}); | |
_ -> | |
ok | |
end, | |
case net_adm:ping(Node) of | |
pong -> | |
ok; | |
_ -> | |
erlang:throw({error, "not ping"}) | |
end, | |
case mnesia_cluster_utils:is_running(Node) of | |
false -> | |
erlang:throw({error, "mnesia from target node is not running"}); | |
_ -> | |
ok | |
end, | |
case mnesia_cluster_utils:is_clustered() of | |
true -> | |
erlang:throw({error, "clustered, plz reverse join"}); | |
false -> | |
ok | |
end. |
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tentative_keeper_utils:add_local_copy_from_remote/0