Mysql in docker container

Question

Two mysql instances (5.6.20) in two docker containers (1.8.32), master and slave create semi-synchronous replication with each other, then users usually execute dml or ddl, which work mainly.

after ten days or more, all clients that connect to the slave will hang

gdb -p / strace slave mysqld freezes

pstack / perf top -p slave mysqld process shows nothing

kill -9 will not kill the mysqld process

stop docker won't stop docker container

What tools or methods can help find the problem?

Answer 1

. , docker compose mysql , "" mysql . (5.7.16-1debian8)

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