XINFO command in Redis provides information about streams and their associated groups and consumers. In Ruby, it's commonly used for:
In Ruby, you can use the
xinfo method from
redis-rb, which is a Ruby client for Redis. Here are some examples:
Example 1: Get basic information about a stream
This snippet retrieves information about
my_stream. The returned value is a hash with various details such as the number of items in the stream, the last added entry, among others.
Example 2: Get information about consumer groups
This snippet gets information about all consumer groups associated with
XINFOsparingly in production environments because it may add substantial latency to Redis if called too frequently or on large streams.
XINFOto ensure they're performing as expected.
XINFOon non-existent streams or groups will result in an error. Always ensure the stream or group exists before calling
redis-rb: Ensure that the Redis client is properly configured and connected before making any command calls.
Q: Can I use
XINFO to retrieve information about consumers in a group?
A: Yes, you can do it using the
xinfo(:consumers, stream_key, group_name) method.