Session Error with data equal to NULL_SESSION. This is a bug.

[hallosushant]

Following error is continuously coming from RedisSessionManager causing session expiry and logout of users from application :

重大: Encountered serialized session 127A0C54AB3F0A35D12AFBDF181C5009.i01-101.i01-101 with data equal to NULL_SESSION. This is a bug.
3 29, 2017 5:38:37 午後 com.orangefunction.tomcat.redissessions.RedisSessionManager sessionFromSerializedData

It started randomly and after restart of redis sentinels the issue got resolved.

What is the reason for this issue and why NULL_SESSION was set.

[shenliuyang]

楼上怎么解决的这个问题呀， 我们也遇到了。

[nuccch]

Please sure "Error saving newly created session: " log content exits or not