On 2 June 2016 at 02:43, Jeff Beck <becked@xxxxxxxxxxx> wrote: > Hi- > We have a master (pg 9.4.4 on Ubuntu 14.10) and a slave (pg 9.4.8 on > Centos 7). During a period of heavy use, the slave began complaining > that the “requested WAL segment xxxxxx has already been removed”. But > the WAL segment was still on the master. The issue was resolved by > manually copying the pg_xlog directory over to the slave. > > I don’t see any errors on the master log file, or any other messages on > the slave’s. What happened? How can this be prevented in the future? I've seen this once. In my case there was a downstream slave of the slave that I'd forgotten about, and the log entries on the slave were the result of slave-of-slave asking slave for a WAL file that was not present on slave. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
