Re: BDR Error restarted

Hi all,

I have a similar problem.

OS Red Hat Enterprise Linux Server release 6.6.

Postgresql packets were installed from repository as described in
https://wiki.postgresql.org/wiki/BDR_Packages

postgresql-bdr94-bdr-0.8.0beta1-1_2ndQuadrant.el6.x86_64
postgresql-bdr94-contrib-9.4.0_bdr1-1_2ndQuadrant.el6.x86_64
postgresql-bdr94-9.4.0_bdr1-1_2ndQuadrant.el6.x86_64
postgresql-bdr94-libs-9.4.0_bdr1-1_2ndQuadrant.el6.x86_64
postgresql-bdr94-server-9.4.0_bdr1-1_2ndQuadrant.el6.x86_64


There are two servers: 192.168.214.169 (main), 192.168.214.163

On each server run commands:
su - postgres -c "/usr/pgsql-9.4/bin/initdb
--pgdata=/var/lib/pgsql/9.4-bdr/data --auth='trust' --username=test_root"
su - postgres -c "/usr/pgsql-9.4/bin/pg_ctl -l
/var/lib/pgsql/9.4-bdr/data/postgresql-02.log -D
/var/lib/pgsql/9.4-bdr/data -o '-p 5432' -w start"
createdb -p 5432 -U test_root testdb

On the first server I've created a schema and a table in it.

Then configs were updated and postgresql servers were restarted.
iptables is switched off.


//postgrsql.conf [192.168.214.169]

listen_addresses = '192.168.214.169'
port=5432

max_replication_slots = 3
max_wal_senders = 4
wal_level = 'logical'
track_commit_timestamp = on
shared_preload_libraries = 'bdr'
max_worker_processes = 10

bdr.connections = 'second'
bdr.second_dsn = 'host=192.168.214.163 port=5432 dbname=testdb
user=test_root'

// pg_hba.conf [192.168.214.169]

host    all             test_root        192.168.214.163/32      trust
host    replication     test_root        192.168.214.163/32      trust
+ uncomment existing replication lines


//postgrsql.conf [192.168.214.163]

listen_addresses = '192.168.214.163'
port=5432

max_replication_slots = 3
max_wal_senders = 4
wal_level = 'logical'
track_commit_timestamp = on
shared_preload_libraries = 'bdr'
max_worker_processes = 10

bdr.connections = 'first'
bdr.first_dsn = 'host=192.168.214.169 port=5432 dbname=testdb
user=test_root'
bdr.first_init_replica = on
bdr.first_replica_local_dsn = 'port=5432 dbname=testdb user=test_root'

// pg_hba.conf [192.168.214.163]

host    all             test_root        192.168.214.169/32      trust
host    replication     test_root        192.168.214.169/32      trust
+ uncomment existing replication lines


Replication works only on that created table and only from the first to the
second server.
When I try to create one more table, the sql command 'CREATE TABLE ...'
hangs.

The followng errors are added each second in postgresql logs:

// 192.168.214.169

LOG:  starting background worker process "bdr
(6109689945671396351,1,16384,): second: apply"
NOTICE:  version "1.0" of extension "btree_gist" is already installed
CONTEXT:  slot "bdr_16384_6109689945671396351_1_16384__", output plugin
"bdr", in the startup callback
NOTICE:  version "0.8.0.6" of extension "bdr" is already installed
CONTEXT:  slot "bdr_16384_6109689945671396351_1_16384__", output plugin
"bdr", in the startup callback
ERROR:  data stream ended
LOG:  worker process: bdr (6109689945671396351,1,16384,): second: apply (PID
13549) exited with exit code 1

// 192.168.214.163

ERROR:  bdr output plugin: slot creation rejected, bdr.bdr_nodes entry for
local node (sysid=6109702913719211129, timelineid=1, dboid=16384):
status='i', bdr still starting up: applying initial dump of remote node
HINT:  Monitor pg_stat_activity and the logs, wait until the node has caught
up
CONTEXT:  slot "bdr_16384_6109689945671396351_1_16384__", output plugin
"bdr", in the startup callback
LOG:  could not receive data from client: Connection reset by peer

In attachment - debug logs of postgresql.

How to fix it?

first_postgres.log
<http://postgresql.nabble.com/file/n5836407/first_postgres.log>
second_postgres.log
<http://postgresql.nabble.com/file/n5836407/second_postgres.log>




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