Instance Diagnosis IDs

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.

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.

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).