Instance Diagnosis IDs

**Table 1** cause_ids
ID	Type	Description
1	cause	The number of connected clients exceeds {THRESHOLD}.
2	cause	The instantaneous traffic is too high.
3	cause	The underlying disk is abnormal.
4	cause	Data persistence failed.
5	cause	Memory usage exceeds {THRESHOLD}.
6	cause	RDB persistence is enabled. Memory usage exceeds {THRESHOLD}.
7	cause	Excessive memory fragmentation.
8	cause	Cache hit rate is lower than {THRESHOLD}.
9	cause	Too many keys have expired at the same time.
10	cause	The following commands with time complexity O(N) are executed: {COMMANDS}
11	cause	CPU usage exceeds {THRESHOLD}.
12	cause	Data is persisted.
13	cause	QPS has increased.

**Table 2** impact_ids
ID	Type	Description
1	impact	Redis connections will be refused.
2	impact	Redis will be disconnected.
3	impact	Redis responses will slow down.
4	impact	RDB persistence will fail.
5	impact	Cache hit ratio will decrease.
6	impact	AOF persistence will fail.

**Table 3** advice_ids
ID	Type	Description
1	advice	Retrieve connections from the connection pool.
2	advice	Use read/write splitting or a cluster.
3	advice	Expand the capacity of the instance.
4	advice	Manually run the MEMORY PURGE command during low-demand hours.
5	advice	Check the Redis usage or reduce the cache granularity to avoid memory eviction.
6	advice	Set different expiration time for the keys.
7	advice	Do not use commands with time complexity of O(N).