Problem
When agent tried to login, the captcha not showing. Agent can't login into the portal.
Caused :
1. Connection between VKYC server and Redis is disconnected or intermitten.
2. Redis memory full, you will see some line below on the log that indicate your redis memory is full
org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: OOM command not allowed when used memory > 'maxmemory'
Solution :
1. Make sure the connection between VKYC Backend server and Redis are properly connected.
2. Check your redis memory, There are two solutions for this kind of problem,
A : increase Redis memory
B : modify Redis memory elimination strategy.
maxmemory-policy: Modify the redis.conf configuration file: add this maxmemory-policy allkeys-lru or link to redis, directly modify it through the command: config set maxmemory-policy allkeys-lru.
*** If you are using redis manage cluster by cloud provider, you can ask them to check on redis memory and increase it.
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