diff options
Diffstat (limited to 'guides/source')
| -rw-r--r-- | guides/source/configuring.md | 11 | ||||
| -rw-r--r-- | guides/source/getting_started.md | 2 | ||||
| -rw-r--r-- | guides/source/i18n.md | 1 | ||||
| -rw-r--r-- | guides/source/migrations.md | 2 |
4 files changed, 14 insertions, 2 deletions
diff --git a/guides/source/configuring.md b/guides/source/configuring.md index 5f170474ee..c499cd0727 100644 --- a/guides/source/configuring.md +++ b/guides/source/configuring.md @@ -759,4 +759,15 @@ Since the connection pooling is handled inside of Active Record by default, all 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. +If you try to use more connections than are available, Active Record will block +and wait for a connection from the pool. When it cannot get connection, a timeout +error similar to given below will be thrown. + +```ruby +ActiveRecord::ConnectionTimeoutError - could not obtain a database connection within 5 seconds. The max pool size is currently 5; consider increasing it: +``` + +If you get the above error, you might want to increase the size of connection +pool by incrementing the `pool` option in `database.yml` + NOTE. If you have enabled `Rails.threadsafe!` mode then there could be a chance that several threads may be accessing multiple connections simultaneously. So depending on your current request load, you could very well have multiple threads contending for a limited amount of connections. diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md index d5444af002..5576b23d91 100644 --- a/guides/source/getting_started.md +++ b/guides/source/getting_started.md @@ -262,7 +262,7 @@ of code: ### Setting the Application Home Page Now that we have made the controller and view, we need to tell Rails when we -want Hello Rails! to show up. In our case, we want it to show up when we +want `Hello, Rails!` to show up. In our case, we want it to show up when we navigate to the root URL of our site, <http://localhost:3000>. At the moment, "Welcome Aboard" is occupying that spot. diff --git a/guides/source/i18n.md b/guides/source/i18n.md index 948b6f167c..33daa79133 100644 --- a/guides/source/i18n.md +++ b/guides/source/i18n.md @@ -843,6 +843,7 @@ So, for example, instead of the default error message `"can not be blank"` you c | numericality | :equal_to | :equal_to | count | | numericality | :less_than | :less_than | count | | numericality | :less_than_or_equal_to | :less_than_or_equal_to | count | +| numericality | :only_integer | :not_an_integer | - | | numericality | :odd | :odd | - | | numericality | :even | :even | - | diff --git a/guides/source/migrations.md b/guides/source/migrations.md index 1c858069f3..0f5379059e 100644 --- a/guides/source/migrations.md +++ b/guides/source/migrations.md @@ -314,7 +314,7 @@ will produce a migration that looks like this ```ruby class AddDetailsToProducts < ActiveRecord::Migration def change - add_column :products, :price, precision: 5, scale: 2 + add_column :products, :price, :decimal, precision: 5, scale: 2 add_reference :products, :supplier, polymorphic: true, index: true end end |