Thanks for response, How were the connections refused (error message)? 2012-06-13 13:45:38.809 MDT [25172]: [1-1] FATAL: remaining connection slots are reserved for non-replication superuser connections 2012-06-13 13:45:38.889 MDT [25173]: [1-1] FATAL: remaining connection slots are reserved for non-replication superuser connections 2012-06-13 13:45:38.895 MDT [25174]: [1-1] FATAL: remaining connection slots are reserved for non-replication superuser connections
Could it be that there are already max_connections sessions? max_connection was set to 600, when issue occurred the db server had 85 connection and server was under medium load. Server details: We're running postgres 9.1.1 linux x64 centos 5.8 aspdata=# select version(); version --------------------------------------------------------------------------------------------------------------- PostgreSQL 9.1.1 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-52), 64-bit We currently have 1 DB we use for multiple independent tenant schemas. The database size is current 56227005240 bytes as reported by pg_database_size. There are 557 schemas each with about 1300 objects (760 tables 520 views). On Mon, Jun 25, 2012 at 2:03 AM, Albe Laurenz <laurenz.a...@wien.gv.at>wrote: > Radovan Jablonovsky wrote: > > Could you please help with this peculiar problem? > > > > > > In PostgreSQL log occurred this message: > > > > 2012-06-13 12:58:45.876 MDT [17536]: [1-1] FATAL: terminating > autovacuum process due to administrator > > command > > The server worked for 48 minutes after and then it started refuse > non-superuser connections, which > > effectively rendered it unusable for client applications. > > What could cause this behaviour? > > You gave very little information. > > How were the connections refused (error message)? > Could it be that there are already max_connections sessions? > > Yours, > Laurenz Albe > -- *Radovan Jablonovsky* | SaaS DBA | Phone 1-403-262-6519 (ext. 256) | Fax 1-403-233-8046**** * Replicon | Hassle-Free Time & Expense Management Software - 7,300 Customers - 70 Countries www.replicon.com | facebook <http://www.facebook.com/Replicon.inc> | twitter<http://twitter.com/Replicon> | blog <http://www.replicon.com/blog/> | contact us<http://www.replicon.com/about_replicon/contact_us.aspx> We are hiring! | search jobs<http://tbe.taleo.net/NA2/ats/careers/searchResults.jsp?org=REPLICON&cws=1&act=sort&sortColumn=1&__utma=1.651918544.1299001662.1299170819.1299174966.10&__utmb=1.8.10.1299174966&__utmc=1&__utmx=-&__utmz=1.1299174985.10.3.utmcsr=google%7Cutmccn=(organic)%7Cutmcmd=organic%7Cutmctr=replicon%20careers&__utmv=1.%7C3=Visitor%20Type=Prospects=1,&__utmk=40578466> *