Set high priority for etcd process (nice -20, ionice -c 1 -n 0).

You should avoid storing etcd data on the server along with other processes that make heavy use of the disk i/o and CPU resources. But, an etcd server can sometimes stably run alongside these processes when given a high priority.
vitabaks · Jan 13, 2020 · 2f41e80 · 2f41e80
1 parent d67313b
commit 2f41e80
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/templates/etcd.service.j2 b/templates/etcd.service.j2
@@ -13,8 +13,9 @@ User=etcd
 ExecStart=/bin/bash -c "GOMAXPROCS=$(nproc) /usr/local/bin/etcd"
 Restart=on-failure
 LimitNOFILE=65536
-IOSchedulingClass=best-effort
+IOSchedulingClass=realtime
 IOSchedulingPriority=0
+Nice=-20
 
 [Install]
 WantedBy=multi-user.target