@@ -6,37 +6,37 @@ An implementation of synchronous multi-master replication based on **logical dec
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771 . Install` contrib/raftable ` and` contrib/mmts ` on each instance.
881 . Add these required options to the` postgresql.conf ` of each instance in the cluster.
9- ```sh
10- max_prepared_transactions = 200 # should be > 0, because all
11-
12- max_connections = 200
13- max_worker_processes = 100 # at least (2 * n + p + 1)
14-
15-
16-
17-
18-
19-
20-
21- max_parallel_degree = 0
22- wal_level = logical # multimaster is build on top of
23-
24- max_wal_senders = 10 # at least the number of nodes
25- wal_sender_timeout = 0
26- default_transaction_isolation = 'repeatable read'
27- max_replication_slots = 10 # at least the number of nodes
28- shared_preload_libraries = 'raftable,multimaster'
29- multimaster.workers = 10
30- multimaster.queue_size = 10485760 # 10mb
31- multimaster.node_id = 1 # the 1-based index of the node in the cluster
32- multimaster.conn_strings = 'dbname=... host=....0.0.1 port=... raftport=..., ...'
33-
34- multimaster.use_raftable = true
35- multimaster.heartbeat_recv_timeout = 1000
36- multimaster.heartbeat_send_timeout = 250
37- multimaster.ignore_tables_without_pk = true
38- multimaster.twopc_min_timeout = 2000
39- ```
9+ ``` sh
10+ max_prepared_transactions = 200# should be > 0, because all
11+ # transactions are implicitly two-phase
12+ max_connections = 200
13+ max_worker_processes = 100# at least (2 * n + p + 1)
14+ # this figure is calculated as:
15+ # 1 raftable worker
16+ # n-1 receiver
17+ # n-1 sender
18+ # 1 mtm-sender
19+ # 1 mtm-receiver
20+ # p workers in the pool
21+ max_parallel_degree = 0
22+ wal_level = logical# multimaster is build on top of
23+ # logical replication and will not work otherwise
24+ max_wal_senders = 10# at least the number of nodes
25+ wal_sender_timeout = 0
26+ default_transaction_isolation =' repeatable read'
27+ max_replication_slots = 10# at least the number of nodes
28+ shared_preload_libraries =' raftable,multimaster'
29+ multimaster.workers = 10
30+ multimaster.queue_size = 10485760# 10mb
31+ multimaster.node_id = 1# the 1-based index of the node in the cluster
32+ multimaster.conn_strings =' dbname=... host=....0.0.1 port=... raftport=..., ...'
33+ # comma-separated list of connection strings
34+ multimaster.use_raftable =true
35+ multimaster.heartbeat_recv_timeout = 1000
36+ multimaster.heartbeat_send_timeout = 250
37+ multimaster.ignore_tables_without_pk =true
38+ multimaster.twopc_min_timeout = 2000
39+ ```
40401 . Allow replication in` pg_hba.conf ` .
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4242##Status functions