tikv-server: check TZ setting #1876
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Do you use strace to check we don't stat too many /etc/localtime ？ |
BusyJay
reviewed
May 31, 2017
src/bin/tikv-server.rs
Outdated
| @@ -269,6 +270,13 @@ fn check_system_config(config: &toml::Value) { | |||
| for e in util::config::check_kernel() { | |||
| warn!("{:?}", e); | |||
| } | |||
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| if cfg!(windows) { | |||
BusyJay
reviewed
May 31, 2017
src/bin/tikv-server.rs
Outdated
| if !cfg!(windows) { | ||
| if env::var("TZ").is_err() { | ||
| env::set_var("TZ", "/etc/localtime"); | ||
| error!("environment variable `TZ` is missing, use `/etc/localtime`"); |
|
LGTM |
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related: pingcap/tidb-ansible#20
If TZ is not set, tikv will stat(/etc/localtime) twice every logging operation.
ref: https://stackoverflow.com/questions/4554271/how-to-avoid-excessive-stat-etc-localtime-calls-in-strftime-on-linux