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MySQL Master-Master Replication Bug – ERROR 1872
Description: When i tried to configurate a crash safe slave with MTS and GTID based replication, but after a OS crash replication failed to be start. error log: ——————————— 2016-10-26 21:00:23 2699 [Warning] Neither –relay-log nor –relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname […]
Setting up Galera Arbitrator
Galera Arbitrator <http://galeracluster.com/documentation-webpages/arbitrator.html> is a member of Percona XtraDB Cluster that is used for voting in case you have a small number of servers (usually two) and don’t want to add any more resources. Galera Arbitrator does not need a dedicated server. It can be installed on a machine running some other application. Just make sure it has […]
CKA Sample questions with answers
Pre Setup Once you’ve gained access to your terminal it might be wise to spend ~1 minute to setup your environment. You could set these: alias k=kubectl # will already be pre-configured export do=”–dry-run=client -o yaml” # k create deploy nginx –image=nginx $do export now=”–force –grace-period 0″ # k delete pod x $now Vim The […]