Meaning og Logs - Mailing list pgsql-general
Hi List,
I got the logs as below from log file of PGSQL 7.4.2 on Solaris-9. Can any one please give the exact meaning of it. And I have not found the file any where on the server “0000000400000072”.
LOG: recycled transaction log file "0000000400000072"
And I found most of the logged file contains the following statements.
LOG: unexpected EOF on client connection
WARNING: there is no transaction in progress
WARNING: there is no transaction in progress
WARNING: there is no transaction in progress
WARNING: there is no transaction in progress
LOG: unexpected EOF on client connection
LOG: unexpected EOF on client connection
LOG: unexpected EOF on client connection
LOG: unexpected EOF on client connection
WARNING: there is no transaction in progress
WARNING: there is no transaction in progress
WARNING: there is no transaction in progress
WARNING: there is no transaction in progress
WARNING: there is already a transaction in progress
WARNING: there is already a transaction in progress
WARNING: there is no transaction in progress
Can I get the exact date and time of these logged statements. And what is the meaning of these statements.
Regards, G. V. Suresh Gupta --------------------------------------------------------------------------------------------------------------------------------- Innovative Technology Solutions(ITS), Zensar Technologies Zensar Knowledge Park, Plot#5, MIDC IT Tower, Kharadi, Off Nagar Road, Pune – 411014 Landline : +91-20-66453471 | +91-9890898688 Email : suresh.g@zensar.com | website: www.zensar.com |
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From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of libra dba
Sent: Wednesday, March 05, 2008 3:38 AM
To: pgsql-general@postgresql.org
Subject: [ADMIN] using warm standby with drbd???
Hi All!
I have configured the warm standby using WAL FILES and DRBD. The wal files are generated as server A. I am using DRBD to replicate these wal files between server A and server B. The DRBD service is running as Primary on Server A and secondary on Server B. The wal_files are written to the server B, but there is a drawback for DRBD. The filesystme needs to be unmounted on the server B (where DRBD is running secondary role).
So recovery is not countinuous.(file systme is unmounted). To start the recovery, i need to change the DRBD role to primary on server B. After that i have to mount the filesystem. Once i mount the filesystem, the recovery process starts.
Is there any way in which i need not switch secondary/primary role for DRBD on server B?
Is there any way in which i can have the file system mounted on server B, running DRBD secondary role?
How else can i replicate the wal_files? ( i don't want to user common file system ,,, NFS,,, etc.)?
Another thing which i want to ask is that if we are generating archives every 1 minute. then what happens to the data which was written to the server A after 35 seconds after the last wal file generation.(server A crashes).
Since this data has not been archived (it was supposed to archive after 1 minute), do i think that this is the loss of data in a server A crash as this 35 second data has not been written to the archived logs and neither has been transported to server B?
A quick reply is highly appreciated!
Thanks!
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