- publishing free software manuals
The PostgreSQL 9.0 Reference Manual - Volume 3 - Server Administration Guide
by The PostgreSQL Global Development Group
Paperback (6"x9"), 274 pages
ISBN 9781906966072
RRP £9.95 ($14.95)

Sales of this book support the PostgreSQL project! Get a printed copy>>>

13 Monitoring Database Activity

A database administrator frequently wonders, “What is the system doing right now?” This chapter discusses how to find that out.

Several tools are available for monitoring database activity and analyzing performance. Most of this chapter is devoted to describing PostgreSQL's statistics collector, but one should not neglect regular Unix monitoring programs such as ps, top, iostat, and vmstat. Also, once one has identified a poorly-performing query, further investigation might be needed using PostgreSQL's EXPLAIN command. Volume 1A: 12.1 Using EXPLAIN discusses EXPLAIN and other methods for understanding the behavior of an individual query.

ISBN 9781906966072The PostgreSQL 9.0 Reference Manual - Volume 3 - Server Administration GuideSee the print edition