User Guide
20
Here are a couple sample data short names:
• member-1-shard-topology-config
• member-2-shard-default-operational
Enabling HA on a Multiple Node Cluster
To enable HA in a three node cluster:
1. Open the configuration/initial/module-shards.conf file on each cluster node.
2. Add
member-2
and
member-3
to the replica list for each data shard.
3. Restart all of the nodes. The nodes should automatically sync up with member-1. After
some time, the cluster should be ready for operation.
When HA is enabled, you must have at least three replicas of every shard. Each node’s
configuration files should look something like this:
module-shards = [
{
name = "default"
shards = [
{
name="default"
replicas = [
"member-1",
"member-2",
"member-3"
]
}
]
},
{
name = "topology"
shards = [
{
name="topology"
replicas = [
"member-1",
"member-2",
"member-3"
]
}
]
},
{
name = "inventory"
shards = [
{
name="inventory"
replicas = [
"member-1",
"member-2",
"member-3"
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