Re: Command prompt replication.

I also should add....

This is the results of slave_stat when running on the slave, this looks
peculiar:

/usr/local/pgsql/bin/slave_stat /usr/local/pgsql/mcp_data 0
Sync: DESYNC
First record in queue: 0
Last received record: 0
Last restored record: 0

-----Original Message-----
From: Theo Galanakis
Sent: Thursday, 20 January 2005 2:09 PM
To: pgsql-admin(at)postgresql(dot)org
Subject: [ADMIN] Command prompt replication.

Hi,
I'm evaluating command prompts replication server and have an issue
I need help to resolve.

I have install the master and slave from the postgres code supplied
from command prompt. Have created a benchpg database which is automatically
created by the contrib program, pg_bench. Then proceeded to copy that
database to the slave via pg_dump, etc...

Im currently running both databases on separate servers. And I have
started up :

/usr/local/pgsql/bin/mcp_server -c /usr/local/pgsql/etc/mcp_server.conf -l
/var/log/mcp_server.log &

Based on the output both pg servers connect to the mcp server
successfully..

Ok..

Not testing the replication by inserting a record into the master
database table branches.

As soon as I enter this record /var/log/mcp_server.log is populated
with :

DEBUG_MSG: MCP-M-Recv| recno: 16003065 txnid: 85 datalen: 25
flags: TABLE_BEGIN TABLE_LIST TABLE_END

DEBUG: Store master tables list in
/usr/local/pgsql/mcp_data/txlog_mcp_master_table_list
DEBUG_MSG: MCP-M-Recv| recno: 16003066 txnid: 86 datalen: 4
flags: TXBEGIN DATA

DEBUG_MSG: MCP-M-Recv| recno: 16003067 txnid: 86 datalen: 4
flags: DATA

DEBUG_MSG: MCP-M-Recv| recno: 16003068 txnid: 86 datalen: 44
flags: DATA

DEBUG_MSG: MCP-M-Recv| recno: 16003069 txnid: 86 datalen: 12
flags: DATA

DEBUG_MSG: MCP-M-Recv| recno: 16003070 txnid: 86 datalen: 16
flags: DATA

DEBUG_MSG: MCP-M-Recv| recno: 16003071 txnid: 86 datalen: 4
flags: DATA TXEND

DEBUG_MASTER: MCP Receive TXEND => mcp_ack_recno: 16003071
DEBUG_MASTER: MCP Send ACK to Master => ACK reco: 16003071, mcp_ack_recno =
0
DEBUG_MSG: MCP-M-Send| recno: 16003071 txnid: 0 datalen: 0
flags: !ACK

DEBUG_SLAVE: 0: TABLE_LIST => SKIP recno: 16003065
DEBUG_SLAVE: MCP Send TXBEGIN to Slave(0)
DEBUG_SLAVE: MCP send TXEND to Slave(0)
DEBUG_SLAVE: 0, Send INCSKIP
DEBUG_MSG: MCP-S(0)-Send| recno: 16003071 txnid: 86 datalen: 4
flags: DATA TXEND

DEBUG_MSG: MCP-S(0)-Recv| recno: 16003071 txnid: 0 datalen: 0
flags: !ACK

DEBUG_SLAVE: 0: Recv ACK from Slave(0) => Slave(0).vrecno = 16003071

On the slave server the /var/log/postgresql.log is polutated with this:

LOG: INCSKIP to 16003071
LOG: SET mcp_ack_recno: 16003071

Based on my limited knowledge and little documentation provided by command
prompt, all looks well??? However the record I added to the master has not
been copied to the slave.

Regards,
Theo

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