Percona XtraDB Cluster Errata
1、Create Table As Select (CTAS) under highly concurent DDL workload (other than CTAS) may deadlock.
For fresh installs, it is highly recommended to use the meta-packages to install packages. Refer to Installing
2、iptables allow: 3306, 4444, 4567 and 4568.SELinux or apparmor should be disabled
Port for group communication, default 4567. It can be changed by the option:
wsrep_provider_options ="gmcast.listen_addr=tcp://0.0.0.0:4010; "
Port for State Transfer, default 4444. It can be changed by the option:
wsrep_sst_receive_address=10.11.12.205:5555
Port for Incremental State Transfer, default port for group communication + 1 (4568). It can be changed by the option:
wsrep_provider_options = "ist.recv_addr=10.11.12.206:7777; "
3、wsrep_slave_threads = 多线程进行并行复制
4、 wsrep_causal_reads = ON | OFF (default)
There might be a small period of time when the
slave is out-of-sync from master. because the master may apply event faster
than a slave. And if you do read from the slave, you may read
the data that has not changed yet
in the ON case, the read on the slave will
wait until
event is applied (this however will increase the response time of the read).
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