[pgpool-general: 6875] Re: PGPOOL-failover

[Loai Abdallatif]

Hello Peng, all

I have followed the setup for pgpool on CentOS 7 as per this link
https://www.pgpool.net/docs/latest/en/html/example-cluster.html.

[image: image.png]

unfortunately i got virtual ip not assigned as per below image and i see
pgpool logs in server1 ( master ) as below , and suddenly the interface
ba1> disappear



Feb 12 22:26:12 server1 pgpool[1136]: [471-1] 2020-02-12 22:26:12: pid
1136: LOG:  get_query_result falied: status: -1
Feb 12 22:26:12 server1 pgpool[1136]: [471-2] 2020-02-12 22:26:12: pid
1136: CONTEXT:  while checking replication time lag
Feb 12 22:26:12 server1 pgpool[1136]: [472-1] 2020-02-12 22:26:12: pid
1136: DEBUG:  do_query: extended:0 query:"SELECT pg_is_in_recovery()"
Feb 12 22:26:12 server1 pgpool[1136]: [473-1] 2020-02-12 22:26:12: pid
1136: DEBUG:  verify_backend_node_status: there's no standby node
Feb 12 22:26:12 server1 pgpool[1136]: [474-1] 2020-02-12 22:26:12: pid
1136: DEBUG:  node status[0]: 1
Feb 12 22:26:12 server1 pgpool[1136]: [475-1] 2020-02-12 22:26:12: pid
1136: DEBUG:  node status[1]: 0
Feb 12 22:26:12 server1 pgpool[1136]: [476-1] 2020-02-12 22:26:12: pid
1136: DEBUG:  node status[2]: 0
Feb 12 22:26:12 server1 pgpool[1131]: [203-1] 2020-02-12 22:26:12: pid
1131: DEBUG:  watchdog heartbeat: send heartbeat signal to server2:9694
Feb 12 22:26:12 server1 pgpool[1133]: [203-1] 2020-02-12 22:26:12: pid
1133: DEBUG:  watchdog heartbeat: send heartbeat signal to server3:9694
Feb 12 22:26:13 server1 pgpool[1132]: [203-1] 2020-02-12 22:26:13: pid
1132: DEBUG:  received heartbeat signal from "192.168.1.92(server2):9999"
node:server2:9999 Linux server2.post.ps


Feb 12 22:26:14 server1 pgpool[1131]: [204-1] 2020-02-12 22:26:14: pid
1131: DEBUG:  watchdog heartbeat: send heartbeat signal to server2:9694
Feb 12 22:26:14 server1 pgpool[1133]: [204-1] 2020-02-12 22:26:14: pid
1133: DEBUG:  watchdog heartbeat: send heartbeat signal to server3:9694
Feb 12 22:26:15 server1 pgpool[1132]: [204-1] 2020-02-12 22:26:15: pid
1132: DEBUG:  received heartbeat signal from "192.168.1.92(server2):9999"
node:server2:9999 Linux server2.post.ps
Feb 12 22:26:16 server1 pgpool[1131]: [205-1] 2020-02-12 22:26:16: pid
1131: DEBUG:  watchdog heartbeat: send heartbeat signal to server2:9694
Feb 12 22:26:16 server1 pgpool[1133]: [205-1] 2020-02-12 22:26:16: pid
1133: DEBUG:  watchdog heartbeat: send heartbeat signal to server3:9694
Feb 12 22:26:17 server1 pgpool[1090]: [767-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  STATE MACHINE INVOKED WITH EVENT = TIMEOUT Current State =
MASTER
Feb 12 22:26:17 server1 pgpool[1090]: [768-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  sending packet, watchdog node:[server2:9999 Linux
server2.post.ps] command id:[50] type:[IAM COORDINATOR] state:[MASTER]
Feb 12 22:26:17 server1 pgpool[1090]: [769-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  sending watchdog packet to socket:9, type:[M], command ID:50,
data Length:118
Feb 12 22:26:17 server1 pgpool[1090]: [770-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  received watchdog packet type:I
Feb 12 22:26:17 server1 pgpool[1090]: [771-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  reading packet type I of length 330
Feb 12 22:26:17 server1 pgpool[1090]: [772-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  STATE MACHINE INVOKED WITH EVENT = PACKET RECEIVED Current
State = MASTER
Feb 12 22:26:17 server1 pgpool[1090]: [773-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  received packet, watchdog node:[server2:9999 Linux
server2.post.ps] command id:[50] type:[NODE INFO] state:[MASTER]
Feb 12 22:26:17 server1 pgpool[1090]: [774-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  packet I with command ID 50 is reply to the command M
Feb 12 22:26:17 server1 pgpool[1090]: [775-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  Watchdog node "server2:9999 Linux server2.post.ps" has
replied for command id 50
Feb 12 22:26:17 server1 pgpool[1090]: [776-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  command I with command id 50 is finished with
COMMAND_FINISHED_ALL_REPLIED
Feb 12 22:26:17 server1 pgpool[1090]: [777-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  STATE MACHINE INVOKED WITH EVENT = COMMAND FINISHED Current
State = MASTER
Feb 12 22:26:17 server1 pgpool[1090]: [778-1] 2020-02-12 22:26:17: pid
1090: DEBUG:  I am the cluster leader node command finished with
status:[ALL NODES REPLIED]
Feb 12 22:26:17 server1 pgpool[1090]: [778-2] 2020-02-12 22:26:17: pid
1090: DETAIL:  The command was sent to 1 nodes and 1 nodes replied to it
Feb 12 22:26:17 server1 pgpool[1137]: [469-1] 2020-02-12 22:26:17: pid
1137: DEBUG:  health check: clearing alarm
Feb 12 22:26:17 server1 pgpool[1137]: [470-1] 2020-02-12 22:26:17: pid
1137: DEBUG:  authenticate kind = 0
Feb 12 22:26:17 server1 pgpool[1137]: [471-1] 2020-02-12 22:26:17: pid
1137: DEBUG:  authenticate backend: key data received
Feb 12 22:26:17 server1 pgpool[1137]: [472-1] 2020-02-12 22:26:17: pid
1137: DEBUG:  authenticate backend: transaction state: I
Feb 12 22:26:17 server1 pgpool[1137]: [473-1] 2020-02-12 22:26:17: pid
1137: DEBUG:  health check: clearing alarm
Feb 12 22:26:17 server1 pgpool[1137]: [474-1] 2020-02-12 22:26:17: pid
1137: DEBUG:  health check: clearing alarm
Feb 12 22:26:17 server1 pgpool[1132]: [205-1] 2020-02-12 22:26:17: pid
1132: DEBUG:  received heartbeat signal from "192.168.1.92(server2):9999"
node:server2:9999 Linux server2.post.ps

On Mon, Feb 10, 2020 at 10:10 AM Bo Peng <pengbo at sraoss.co.jp> wrote:

> On Thu, 6 Feb 2020 12:39:48 +0200
> Loai Abdallatif <loai.abdallatif at gmail.com> wrote:
>
> > Dear Colleagues
> >
> > any one have a document for setup Pgpool-II's failover functionality (
> > active-standby ) on Debian ?
>
>
> Below is a setup example on CentOS7.
> https://www.pgpool.net/docs/latest/en/html/example-cluster.html
>
> > thanks
>
>
> --
> Bo Peng <pengbo at sraoss.co.jp>
> SRA OSS, Inc. Japan
>
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