Redis Exception Resolution: Misconf Redis is configured to save RDB snapshots, but are currently not able to persist

The project uses the Redis to do the cache server, recently appeared this exception:

Redis.clients.jedis.exceptions.JedisDataException:MISCONF Redis is configured to save RDB snapshots, but was currently not Able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.
Redis.clients.jedis.Protocol.processError (protocol.java:113)
Redis.clients.jedis.Protocol.process (protocol.java:138)
Redis.clients.jedis.Protocol.read (protocol.java:192)
Redis.clients.jedis.Connection.readProtocolWithCheckingBroken (connection.java:282)
Redis.clients.jedis.Connection.getIntegerReply (connection.java:207)
Redis.clients.jedis.BinaryJedis.setnx (binaryjedis.java:435)
Com.radiadesign.catalina.session.RedisSessionManager.createSession (redissessionmanager.java:274)
Org.apache.catalina.connector.Request.doGetSession (request.java:3014)
Org.apache.catalina.connector.Request.getSession (request.java:2378)
Org.apache.catalina.connector.RequestFacade.getSession (requestfacade.java:897)
Org.apache.catalina.connector.RequestFacade.getSession (requestfacade.java:909)
Javax.servlet.http.HttpServletRequestWrapper.getSession (httpservletrequestwrapper.java:238)
Javax.servlet.http.HttpServletRequestWrapper.getSession (httpservletrequestwrapper.java:238)
Javax.servlet.http.HttpServletRequestWrapper.getSession (httpservletrequestwrapper.java:238)
Javax.servlet.http.HttpServlet.service (httpservlet.java:620)
Javax.servlet.http.HttpServlet.service (httpservlet.java:727)
Org.apache.tomcat.websocket.server.WsFilter.doFilter (wsfilter.java:52)

Online search, a lot of people have given a solution, but did not specify the ins and outs of the problem, to write down, to be free to study.

Workaround: After connecting to the server via REDIS-CLI, execute the following command:

Config set Stop-writes-on-bgsave-error No

So you can.