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authorXavier Noria <fxn@hashref.com>2012-03-07 22:46:06 +0100
committerXavier Noria <fxn@hashref.com>2012-03-07 22:46:06 +0100
commit73324fd830723022178fe87e42e081442846145b (patch)
tree9fd443d697ee61614fd478825318c53ff9d52b60 /railties/guides/source/configuring.textile
parenta149612c0b10bc71c98854aa07b0371bf7d8ac70 (diff)
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Revert "updates the new default pool size in some additional places"
Reason: We are about to temporarily revert the change to the default. This reverts commit 5c0aba238c37a71fce08f949bc2c6bdd9aab4f7b.
Diffstat (limited to 'railties/guides/source/configuring.textile')
-rw-r--r--railties/guides/source/configuring.textile8
1 files changed, 3 insertions, 5 deletions
diff --git a/railties/guides/source/configuring.textile b/railties/guides/source/configuring.textile
index e796f44606..2f465b37ed 100644
--- a/railties/guides/source/configuring.textile
+++ b/railties/guides/source/configuring.textile
@@ -652,19 +652,17 @@ The error occurred while evaluating nil.each
h3. Database pooling
-Active Record database connections are managed by +ActiveRecord::ConnectionAdapters::ConnectionPool+ which ensures that a connection pool synchronizes the amount of thread access to a limited number of database connections. This limit defaults to 1 and can be configured in +database.yml+.
+Active Record database connections are managed by +ActiveRecord::ConnectionAdapters::ConnectionPool+ which ensures that a connection pool synchronizes the amount of thread access to a limited number of database connections. This limit defaults to 5 and can be configured in +database.yml+.
<ruby>
development:
adapter: sqlite3
database: db/development.sqlite3
- # Maximum number of database connections available per process. Please
- # increase this number in multithreaded applications.
- pool: 1
+ pool: 5
timeout: 5000
</ruby>
-Since the connection pooling is handled inside of Active Record by default, all application servers (Thin, Mongrel, Unicorn etc.) should behave the same. Initially, the database connection pool is empty and it will create additional connections as the demand for them increases, until it reaches the connection pool limit.
+Since the connection pooling is handled inside of ActiveRecord by default, all application servers (Thin, mongrel, Unicorn etc.) should behave the same. Initially, the database connection pool is empty and it will create additional connections as the demand for them increases, until it reaches the connection pool limit.
Any one request will check out a connection the first time it requires access to the database, after which it will check the connection back in, at the end of the request, meaning that the additional connection slot will be available again for the next request in the queue.