Redis

Supported Versions: Redis 2.4 and above

Monitored Parameters

Redis database server is monitored based on the parameters or the attributes listed below. These attributes provide information about the functioning of Redis database. You can also configure thresholds for the attributes monitored by the server based on these details.

The Availability tab shows the Availability history of the Redis database for the past 24 hours or 30 days. The Performance tab shows the Health Status and events for the past 24 hours or 30 days. The List view enables you to perform bulk admin configurations. Click on the individual monitors listed to view the following information:

Monitor Information

This tab displays the basic information like the name of the server, host name and the port where the server is running. Additional parameters like ProcessID, RunID, uptime and associated groups are also displayed.

Performance

Parameters	Description
Availability and Performance History	Displays the availability and performance history for the last six hours.
CPU Usage	Specifies the usage of CPU in percentage.
Children CPU Usage	The CPU consumed by the background processes (like SORT, SUNION, BGSAVE, BGREWRITEAOF).
Memory Utilization	Specifies the used, free and total memory of the server in mega bytes.
Memory Fragmentation Ratio	The ratio between the number of bytes that Redis allocated as seen by the operating system and the total number of bytes allocated by Redis using its allocator.
Connected/ Blocked Clients	Number of client connections and number of clients pending on a blocking call.
Rejected Connections	Number of connections rejected because of maxclients limit.
Connections Stats	Number of connections accepted by the server per second.
Operations Stats	Number of commands processed per second.
Keyspace Stats	Specifies the number of successful and failed lookup of keys in the main dictionary.
Keyspace Hit Percentage	Percentage of the number of successful and failed lookup of keys in the main dictionary.
Expired/ Evicted Key Stats	Displays the total number of key expiration events and the number of evicted keys due to max memory limits.
Publish Subscribe Stats	The global number of pub/sub channels with cleint subscriptions.

Persistence

Parameters	Description
Persistence Stats	Displays the details about RDB and AOF persistence states like the status of the last RDB save operation, status of the AOF rewrite operation, etc.
Database Stats	Displays the details about the database, like the db name, total number of keys and number of expired keys.

Replication

Parameters	Description
Replication Details	Displays if the replication role is master or slave. In case of slave, master node details like master host, master port and status of the link, etc., are displayed.
Slave Connections	Specifies the number of slaves connected. This graph will be populated in case of master node alone.

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