MAC(message authentication code) incorrect

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peng19832
Posts: 1
Joined: 2018/07/23 02:30:11

MAC(message authentication code) incorrect

Post by peng19832 » 2018/07/23 03:37:40

OS version: CentOS 7.2
Used for: Dedicated mysql server
Problem: the received data is incorrect
Superficies: On the client side, the sql text sent by jdbc and other drivers, on the server side, occasionally will receive unexpected sql text. This situation is random.
etc:
client 1(SQL 1) ---> select tab1.col1,..., tab1.colN from tab1 where tab1.colN=...;
client 2 ---> select tabN.col1,..., tabN.colN from tabN where tabN.colN=...;
server(SQL 1) ---> select tab1.col1,..., tab1.colN from tab1 wherefrom tabN tab1.colN=...; OR select tab1.col1,..., tab1.colN from tab1 where tab1.colN=... where tabN.colN=...;

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TrevorH
Site Admin
Posts: 33202
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: MAC(message authentication code) incorrect

Post by TrevorH » 2018/07/23 06:24:16

7.2 has been out of support since 7.3 was released in November 2016. Run yum update to get up to date on 7.5 and see if the problem persists.
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke

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