Hello!
As I can see files is delivered not with delay but with timeshift.
1. Can you show me restore_command on slave?
2. Also can you check archived WAL creation time on slaves in archive location after you copied them with archive_command? Is in near WAL creation time in pg_xlogs? Or different?
3. How do you check timezone equivalence between master and slave? What
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
On 04.08.2016 05:21, Patrick B wrote:
Hi all,
I'm currently using PostgreSQL 9.2. I noticed that the wal_files are being generated by the master well, no problems. But on the slaves, it seems to be a delay to the delivery of those wal_files.
I got two slaves using streaming replication and wal files shipment from Master.
On the master:
ls -ltr /var/lib/pgsql/9.2/data/pg_xlogs/
Aug 4 02:18 000000020000159D000000D1
Aug 4 02:18 000000020000159D000000D2
Aug 4 02:18 000000020000159D000000D3
select * from pg_current_xlog_location();
159D/D6C8DAF8
So, seems to be ok.
On the slave:
ls -ltr /var/lib/pgsql/9.2/wal_archive:
Aug 4 00:58 000000020000159C00000071
Aug 4 00:58 000000020000159C00000072
Aug 4 00:58 000000020000159C00000073
See the time difference? 2 hours? It seems the files are being delivered with 2 hours delay.
The streaming replication is working fine... But if that goes down, I'll need the wal_files up to date to recover the database.
How can I see what's going on? What would be the steps? any tips?
Cheers
Patrick.
