add mnesia cluster helper scripts
This commit is contained in:
Christophe Romain
parent
f18ce9564c
commit
8cf4ef0aac
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@ -167,6 +167,8 @@ install: all
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# Binary C programs
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$(INSTALL) -d $(PBINDIR)
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$(INSTALL) -m 750 $(O_USER) tools/captcha.sh $(PBINDIR)
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$(INSTALL) -m 750 $(O_USER) tools/joincluster $(PBINDIR)
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$(INSTALL) -m 750 $(O_USER) tools/leavecluster $(PBINDIR)
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-[ -f deps/p1_pam/priv/bin/epam ] \
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&& $(INSTALL) -m 750 $(O_USER) deps/p1_pam/priv/bin/epam $(PBINDIR)
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#
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@ -428,6 +428,16 @@ check_start()
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}
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}
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# cluster setup
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join_cluster()
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{
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$EJABBERD_BIN_PATH/joincluster $*
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}
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leave_cluster()
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{
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$EJABBERD_BIN_PATH/leavecluster $*
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}
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# allow sync calls
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wait_for_status()
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{
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@ -458,5 +468,7 @@ case $ARGS in
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' etop') etop;;
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' started') wait_for_status 0 30 2;; # wait 30x2s before timeout
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' stopped') wait_for_status 3 15 2 && stop_epmd;; # wait 15x2s before timeout
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' join_cluster '*) join_cluster ${ARGS/ join_cluster /};;
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' leave_cluster '*) leave_cluster ${ARGS/ leave_cluster /};;
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*) ctl $ARGS;;
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esac
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@ -0,0 +1,152 @@
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#!/bin/bash
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# Add the current ejabberd node in a cluster
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# copyright (c) 2010-2015 ProcessOne
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#
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# This script is proprietary software and cannot be published or redistribute.
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# Return Code:
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# 0 : groovy baby
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# 11 : erl not found
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# 12 : erlc not found
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# 20 : database dir doesn't exist
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# 21 : database dir not writable
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# 21 : database dir variable not set
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# 30 : network issue
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# 31 : node names incompatibility
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function error
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{
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echo "Error: $1" >&2
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exit $2
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}
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echo "--------------------------------------------------------------------"
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echo ""
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echo "ejabberd cluster configuration"
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echo ""
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echo "This ejabberd node will be configured for use in an ejabberd cluster."
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echo "IMPORTANT: all local data from the database will be lost, and"
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echo "cluster database will be initialized. All data from the master"
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echo "node will be replicated to this one."
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echo ""
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echo "--------------------------------------------------------------------"
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echo "Press any key to continue, or Ctrl+C to stop now"
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read foo
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echo ""
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[ $# -eq 0 ] && {
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echo "Make sure you have a running remote master ejabberd node"
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echo "Before continuing, you must copy the ~/.erlang.cookie file from"
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echo "remote master node and check ejabberd.cfg compatibility."
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echo "e.g. hosts definition must match on all nodes"
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echo ""
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echo "The remote master node name is defined as ERLANG_NODE into"
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echo "ejabberdctl.cfg on that remote node."
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echo ""
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echo -n "Remote master node name: "
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read REMOTE
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echo ""
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} || {
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echo "Using passed parameter for remote master node name: $1"
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REMOTE=$1
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}
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cont=Y
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ping -q -c 1 ${REMOTE#*@} 2>/dev/null >/dev/null
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[ $? -eq 0 ] || {
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echo "Cannot ping ${REMOTE#*@}. Are you sure network setup is correct ?"
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echo -n "Should we continue anyway ? (Y/n) "
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read cont
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}
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cont=`echo $cont | tr a-z A-Z`
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[ "$cont" == "Y" ] || error "Check your network configuration (dns, firewall, etc...)" 30
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HERE=`which "$0"`
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BASE=`dirname $HERE`/..
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ROOTDIR=`cd $BASE; pwd`
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. $ROOTDIR/bin/ejabberdctl stop 2>/dev/null >/dev/null
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NAME=-name
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[ "$ERLANG_NODE" = "${ERLANG_NODE%.*}" ] && NAME=-sname
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PA=/tmp/clustersetup_$$
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CLUSTERSETUP=clustersetup
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CLUSTERSETUP_ERL=$PA/$CLUSTERSETUP.erl
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REMOTENAME=-name
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[ "$REMOTE" = "${REMOTE%.*}" ] && REMOTENAME=-sname
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[ "$REMOTENAME" = "$NAME" ] || {
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echo "IMPORTANT!: node names are incompatible"
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echo "Remote node name is $REMOTE"
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echo "Local node name is $ERLANG_NODE"
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echo ""
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echo "Both node names must be short or fqdn names."
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echo "Using short and fqdn names is impossible."
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echo ""
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error "incompatible node names" 31
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}
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set -o errexit
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set -o nounset
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echo "Using commands:"
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which erl || error "can't find erl" 11
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which erlc || error "can't find erlc" 12
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echo ""
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[ -d $SPOOL_DIR ] && rm -Rf $SPOOL_DIR
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mkdir $SPOOL_DIR || error "$SPOOL_DIR cannot be created" 20
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[ -w $SPOOL_DIR ] || error "$SPOOL_DIR directory is not writable" 21
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cd $ROOTDIR
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mkdir -p $PA
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cat <<EOF > $CLUSTERSETUP_ERL
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-module($CLUSTERSETUP).
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-export([start/0]).
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set_table_copy(Table, _Node, {badrpc, Reason}) ->
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io:format("Error: cannot get storage type for table ~p on node $REMOTE:~n ~p~n",[Table, Reason]);
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set_table_copy(Table, Node, Type) ->
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io:format("setting table ~p to mode ~p~n",[Table, Type]),
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case mnesia:add_table_copy(Table, Node, Type) of
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{aborted, _} ->
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mnesia:change_table_copy_type(Table, Node, Type);
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_ ->
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ok
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end.
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set_tables({badrpc, Reason}) ->
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io:format("ERROR: cannot get tables list on $REMOTE : ~p~n",[Reason]);
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set_tables([]) ->
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ok;
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set_tables([schema | Tables]) ->
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set_tables(Tables);
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set_tables([s2s | Tables]) ->
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set_tables(Tables);
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set_tables([session | Tables]) ->
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set_tables(Tables);
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set_tables([Table | Tables]) ->
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set_table_copy(Table, node(),
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rpc:call('$REMOTE', mnesia, table_info, [Table, storage_type])),
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set_tables(Tables).
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start() ->
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io:format("~n",[]),
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R = case net_adm:ping('$REMOTE') of
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pong ->
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set_table_copy(schema, node(), disc_copies),
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set_tables(rpc:call('$REMOTE', mnesia, system_info, [tables])),
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0;
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pang ->
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io:format("node ~p is not reachable, please check epmd port, and FIREWALL_WINDOW ports~n", ['$REMOTE']),
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1
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end,
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halt(R).
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EOF
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erlc -o $PA $CLUSTERSETUP_ERL
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sh -c "erl $NAME $ERLANG_NODE -pa $PA $KERNEL_OPTS -mnesia extra_db_nodes \"['$REMOTE']\" dir \"\\\"$SPOOL_DIR\\\"\" -s mnesia -s $CLUSTERSETUP start"
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rm -Rf $PA
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echo "End."
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echo "Check that there is no error in the above messages."
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@ -0,0 +1,97 @@
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#!/bin/bash
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# Remove the current ejabberd node in a cluster
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# copyright (c) 2010-2015 ProcessOne
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#
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# This script is proprietary software and cannot be published or redistribute.
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# Return Code:
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# 0 : groovy baby
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# 11 : erl not found
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# 12 : erlc not found
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# 20 : database dir doesn't exist
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# 21 : database dir not writable
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# 21 : database dir variable not set
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function error
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{
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echo "Error: $1" >&2
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exit $2
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}
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echo "--------------------------------------------------------------------"
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echo ""
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echo "ejabberd cluster configuration"
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echo ""
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echo "This ejabberd node will be removed from the cluster."
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echo "IMPORTANT: this node will be stopped. At least one other clustered"
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echo "node must be running."
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echo ""
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echo "--------------------------------------------------------------------"
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echo "Press any key to continue, or Ctrl+C to stop now"
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read foo
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echo ""
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HERE=`which "$0"`
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BASE=`dirname $HERE`/..
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ROOTDIR=`cd $BASE; pwd`
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. $ROOTDIR/bin/ejabberdctl stop 2>/dev/null >/dev/null
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$ROOTDIR/bin/ejabberdctl stopped
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PA=/tmp/clustersetup_$$
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CLUSTERSETUP=clustersetup
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CLUSTERSETUP_ERL=$PA/$CLUSTERSETUP.erl
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set -o errexit
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set -o nounset
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echo "Using commands:"
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which erl || error "can't find erl" 11
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which erlc || error "can't find erlc" 12
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echo ""
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cd $ROOTDIR
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mkdir -p $PA
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cat <<EOF > $CLUSTERSETUP_ERL
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-module($CLUSTERSETUP).
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-export([start/0]).
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del_table_copy(Table, Node) ->
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case mnesia:del_table_copy(Table, Node) of
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{aborted, Reason} -> io:format("Error: can not remove ~p table: ~p~n", [Table, Reason]);
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_ -> io:format("table ~p removed from cluster~n", [Table])
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end.
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del_tables([],_) ->
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ok;
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del_tables([schema | Tables], Node) ->
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del_tables(Tables, Node);
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del_tables([Table | Tables], Node) ->
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del_table_copy(Table, Node),
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del_tables(Tables, Node).
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start() ->
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io:format("~n",[]),
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Removed = node(),
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case mnesia:system_info(running_db_nodes)--[Removed] of
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[] -> io:format("Error: no other node running in the cluster~n");
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Nodes ->
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del_tables(mnesia:system_info(local_tables), Removed),
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mnesia:stop(),
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case rpc:call(hd(Nodes), mnesia, del_table_copy, [schema, Removed]) of
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{badrpc,Reason} -> io:format("Error: can not unregister node ~p from cluster: ~p~n", [Removed, Reason]);
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{aborted,Reason} -> io:format("Error: can not unregister node ~p from cluster: ~p~n", [Removed, Reason]);
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{atomic, ok} ->
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mnesia:delete_schema([Removed]),
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io:format("node ~p removed from cluster~n", [Removed])
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end
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end,
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halt(0).
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EOF
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erlc -o $PA $CLUSTERSETUP_ERL
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sh -c "erl $NAME $ERLANG_NODE -pa $PA $KERNEL_OPTS -mnesia dir "\"$SPOOL_DIR\"" -s mnesia -s $CLUSTERSETUP start"
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rm -Rf $PA
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echo "End."
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echo "Check that there is no error in the above messages."
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