I'am testing new group-replication feature on MySQL 5.7 with multi-master replication on a Windows 2012 R2 system. I'm using for testing a single server and install to MySQL instance onm TCP-Ports 3306 and 3306 using diffent data-dirs and tcp-ports, etc.
All works fine, even setting up group replication. But when i use start replication, i can't connect per TCP/IP (mysql -h 127.0.0.1 -u root -p) anymore only by socket (mysql -h localhost -u root -p).
Before starting group replication on second master:
>mysql -h 127.0.0.1 -P 3307 -u root -p -e "status; show processlist; SELECT * FROM performance_schema.replication_group_members"
--------------
mysql Ver 14.14 Distrib 5.7.17, for Win64 (x86_64)
Connection id: 16
Current database:
Current user: root@localhost
SSL: Cipher in use is DHE-RSA-AES128-GCM-SHA256
Using delimiter: ;
Server version: 5.7.17-enterprise-commercial-advanced-log MySQL Enterprise Server - Advanced Edition (Commercial)
Protocol version: 10
Connection: 127.0.0.1 via TCP/IP
Server characterset: utf8
Db characterset: utf8
Client characterset: cp850
Conn. characterset: cp850
TCP port: 3307
Uptime: 2 min 52 sec
Threads: 1 Questions: 43 Slow queries: 0 Opens: 127 Flush tables: 1 Open tables: 120 Queries per second avg: 0.250
--------------
+----+------+-----------------+------+---------+------+----------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+----+------+-----------------+------+---------+------+----------+------------------+
| 16 | root | localhost:49333 | NULL | Query | 0 | starting | show processlist |
+----+------+-----------------+------+---------+------+----------+------------------+
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| group_replication_applier | c6dc60ef-f8db-11e6-b78f-005056aae5b3 | RS-6-48 | 3307 | OFFLINE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
starting group replication with mysql -P 3307 -u root -p -e "START GROUP_REPLICATION"
After that trying to connect per tcp/ip is stucked endless. The TCP-Port is open and you can connect, but nothing more. The server is only reachable by localhost:
>mysql -h localhost -P 3307 -u root -p -e "status; show processlist; SELECT * FROM performance_schema.replication_group_members"
--------------
mysql Ver 14.14 Distrib 5.7.17, for Win64 (x86_64)
Connection id: 39
Current database:
Current user: root@localhost
SSL: Cipher in use is DHE-RSA-AES128-GCM-SHA256
Using delimiter: ;
Server version: 5.7.17-enterprise-commercial-advanced-log MySQL Enterprise Server - Advanced Edition (Commercial)
Protocol version: 10
Connection: localhost via TCP/IP
Server characterset: utf8
Db characterset: utf8
Client characterset: cp850
Conn. characterset: cp850
TCP port: 3307
Uptime: 6 min 33 sec
Threads: 4 Questions: 87 Slow queries: 0 Opens: 137 Flush tables: 1 Open tables: 130 Queries per second avg: 0.221
--------------
+----+-------------+-----------------+------+---------+------+--------------------------------------------------------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+----+-------------+-----------------+------+---------+------+--------------------------------------------------------+------------------+
| 28 | system user | | NULL | Connect | 30 | System lock | NULL |
| 31 | system user | | NULL | Connect | 30 | Slave has read all relay log; waiting for more updates | NULL |
| 39 | root | localhost:49358 | NULL | Query | 0 | starting | show processlist |
+----+-------------+-----------------+------+---------+------+--------------------------------------------------------+------------------+
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
| group_replication_applier | 76c585ef-f8df-11e6-80f7-005056aae5b3 | RS-6-48 | 3306 | ONLINE |
| group_replication_applier | c6dc60ef-f8db-11e6-b78f-005056aae5b3 | RS-6-48 | 3307 | ONLINE |
+---------------------------+--------------------------------------+-------------+-------------+--------------+
If a stop the replication again. Server is reachable under 127.0.0.1 again.
Any hints solving this problem? Thanks.