Tue Nov 21 14:06:50 PST 2006
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Hi, I am having problem with failover. This is my initial slonik script for slony-I replication (node1 master, node2 and node3 slaves) ---------------------- cluster name = $CLUSTERNAME; node 1 admin conninfo = 'dbname=$MASTERDBNAME host=$MASTERHOST port=$MASTERDBPORT user=$REPLICATIONUSER'; node 2 admin conninfo = 'dbname=$SLAVEDBNAME1 host=$SLAVEHOST1 port=$SLAVEDBPORT1 user=$REPLICATIONUSER'; node 3 admin conninfo = 'dbname=$SLAVEDBNAME2 host=$SLAVEHOST2 port=$SLAVEDBPORT2 user=$REPLICATIONUSER'; init cluster ( id=1, comment = 'Master Node'); create set (id=1, origin=1, comment='All development tables'); --set tables here store node (id=2, comment = 'Slave node 1'); store path (server = 1, client = 2, conninfo='dbname=$MASTERDBNAME host=$MASTERHOST port=$MASTERDBPORT user=$REPLICATIONUSER'); store path (server = 2, client = 1, conninfo='dbname=$SLAVEDBNAME1 host=$SLAVEHOST1 port=$SLAVEDBPORT1 user=$REPLICATIONUSER'); store listen (origin=1, provider = 1, receiver =2); store listen (origin=2, provider = 2, receiver =1); store node (id=3, comment = 'Slave node 2'); store path (server = 1, client = 3, conninfo='dbname=$MASTERDBNAME host=$MASTERHOST port=$MASTERDBPORT user=$REPLICATIONUSER'); store path (server = 3, client = 1, conninfo='dbname=$SLAVEDBNAME2 host=$SLAVEHOST2 port=$SLAVEDBPORT2 user=$REPLICATIONUSER'); store listen (origin=1, provider = 1, receiver =3); store listen (origin=3, provider = 3, receiver =1); ----------------------- ------slave node 2 and vice versa node3 -- subscriber cluster name = $CLUSTERNAME; node 1 admin conninfo = 'dbname=$MASTERDBNAME host=$MASTERHOST user=$REPLICATIONUSER'; node 2 admin conninfo = 'dbname=$SLAVEDBNAME1 host=$SLAVEHOST1 user=$REPLICATIONUSER'; subscribe set ( id = 1, provider = 1, receiver = 2, forward = yes); ------------------------- I figured subscribe should be forward=yes. initial replication works fine. but I cannot do failover (node1-master crashed,stopped edb,disk die ...) -----failover running on node2 cluster name = $CLUSTERNAME; node 2 admin conninfo = 'dbname=$SLAVEDBNAME1 host=$SLAVEHOST1 port=$SLAVEDBPORT1 user=$REPLICATIONUSER'; node 3 admin conninfo = 'dbname=$SLAVEDBNAME2 host=$SLAVEHOST2 port=$SLAVEDBPORT2 user=$REPLICATIONUSER'; store path (server = 2, client = 3, conninfo='dbname=$SLAVEDBNAME1 host=$SLAVEHOST1 port=$SLAVEDBPORT1 user=$REPLICATIONUSER'); store path (server = 3, client = 2, conninfo='dbname=$SLAVEDBNAME2 host=$SLAVEHOST2 port=$SLAVEDBPORT2 user=$REPLICATIONUSER'); store listen (origin=2, provider = 2, receiver =3); store listen (origin=3, provider = 3, receiver =2); failover (id=1, backup node=2); ------------------------------- Could you give detail steps with my example if I am still missing something. When I run the failover above I got the message below. --------------------- [enterprisedb at baba2 bin]$ ./failover_on_node1.sh <stdin>:19: PGRES_FATAL_ERROR select "_edb_replication_example".failedNode(1, 2); - ERROR: Slony-I: cannot failover - node 3 has no path to the backup node --------------------- Is my scripts OK? Thanks ------------------------------------------------- This mail sent through IMP: www.resolution.com
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