Shulou(Shulou.com)06/01 Report--

BUG description:

Semi-sync master failed on net_flush () before waiting for slave reply

MariaDB 10.0.25 Centos6.6

This is a BUG where hang lives in semi-synchronous replication due to network jitter at 4 p. M. on July 7. The phenomenon at that time was that the main library could not be written, hung from the IO Thread thread of the library, and lost contact with the main library.

Screenshot of error log

Screenshot of the alarm message at that time

Monitoring chart

After that, semi-synchronous replication is turned off immediately, and the primary database returns to normal.

Submitted BUG address

Https://jira.mariadb.org/browse/MDEV-16706

The official reply was fixed in the latest version of MariaDB 10.0.36.

By the same token, the BUG exists in MySQL5.7.

Https://bugs.mysql.com/bug.php?id=79865

Friends you meet, please pay attention!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.