When creating a new data bucket, or editing an existing one, you will be presented with the bucket configuration screen. From here you can set the memory size, access control and other settings, depending on whether you are editing or creating a new bucket, and the bucket type.
When creating a new bucket, you are presented with the Create Bucket dialog, as shown in the figure below.
Bucket Name
The bucket name. The bucket name can only contain characters in range A-Z, a-z, 0-9 as well as underscore, period, dash and percent symbols.
Bucket Type
Specifies the type of the bucket to be created, either
MemcachedorMembase.Access Control
The access control configures the port your clients will use to communicate with the data bucket, and whether the bucket requires a password.
To use the TCP standard port (11211), the first bucket you create can use this port without requiring SASL authentication. For each subsequent bucket, you must specify the password to be used for SASL authentication, and client communication must be made using the binary protocol.
To use a dedicated port, select the dedicate port radio button and enter the port number you want to use. Using a dedicated port supports both the text and binary client protocols, and does not require authentication.
Memory Size
This option specifies the amount of available RAM configured on this server which should be allocated to the bucket being configured. Note that the allocation is the amount of memory that will be allocated for this bucket on each node, not the total size of the bucket across all nodes.
Replication
For Membase buckets you can enable replication to support multiple replicas of the default bucket across the servers within the cluster. You can configure up to three replicas. Each replica receives copies of all the documents that are managed by the bucket. If the host machine for a bucket fails, a replica can be promoted to take its place, providing continuous (high-availability) cluster operations in spite of machine failure.
You can disable replication by setting the number of replica copies to zero (0).
Once you selected the options for the new bucket, you can click button to create and activate the bucket within your cluster. You can cancel the bucket creation using the button.
You can edit a limited number of settings for an existing Couchbase bucket:
Access Control, including the standard port/password or custom port settings.
Memory Size can be modified providing you have unallocated space within your Cluster configuration. You can reduce the amount of memory allocated to a bucket if that space is not already in use.
The bucket name cannot be modified.
To delete the configured bucket entirely, click the button.
For Memcached buckets, you can modify the following settings when editing an existing bucket:
Access Control, including the standard port/password or custom port settings.
Memory Size can be modified providing you have unallocated space within your Cluster configuration. You can reduce the amount of memory allocated to a bucket if that space is not already in use.
You can delete the bucket entirely by clicking the button.
You can empty a Memcached bucket of all the cached information that it stores by using the button.
Warning
Using the button removes all the objects stored in the Memcached bucket. Using this button on active Memcached buckets may delete important information.