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這篇文章主要介紹了在Linux上如何檢查MySQL/MariaDB數(shù)據(jù)庫(kù)正常運(yùn)行時(shí)間,具有一定借鑒價(jià)值,感興趣的朋友可以參考下,希望大家閱讀完這篇文章之后大有收獲,下面讓小編帶著大家一起了解一下。
rocess-monitoring/" class="ext" rel="external nofollow" target="_blank">ps 命令的意思是進(jìn)程狀態(tài)。這是最基本的命令之一,它顯示了系統(tǒng)正在運(yùn)行的進(jìn)程的詳細(xì)信息。
為此,你首先需要使用 rocess-id-pid-ppid-linux/" class="ext" rel="external nofollow" target="_blank">pidof 命令查找 MySQL/MariaDB 的 PID。
# pidof mysqld | cut -d" " -f1 2412
獲取 MySQL/MariaDB 的 PID 后,請(qǐng)?jiān)?ps
命令中使用 --etime
選項(xiàng)獲得正常運(yùn)行時(shí)間。
--etime
:自進(jìn)程啟動(dòng)以來(lái)經(jīng)過(guò)的時(shí)間,形式為 [[DD-]hh:]mm:ss
。
# ps -p 2412 -o etime ELAPSED2-08:49:30
或者,在 ps
命令中使用 --lstart
選項(xiàng)來(lái)獲取指定 PID 的正常運(yùn)行時(shí)間。
# ps -p 2412 -o lstart STARTEDSat May 2 03:02:15 2020
MySQL/MariaDB 進(jìn)程已經(jīng)運(yùn)行了 2 天 03 小時(shí) 02 分 15 秒。
systemctl 命令用于控制 systemd 系統(tǒng)和服務(wù)管理器。
systemd 是新的初始化系統(tǒng)和系統(tǒng)管理器,現(xiàn)在大多數(shù) Linux 發(fā)行版都淘汰了傳統(tǒng)的 SysVinit 管理器而采用了 systemd。
# systemctl status mariadb或者# systemctl status mysql ● mariadb.service - MariaDB 10.1.44 database server Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled) Drop-In: /etc/systemd/system/mariadb.service.d └─migrated-from-my.cnf-settings.conf Active: active (running) since Sat 2020-05-02 03:02:18 UTC; 2 days ago Docs: man:mysqld(8) https://mariadb.com/kb/en/library/systemd/ Process: 2448 ExecStartPost=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS) Process: 2388 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= || VAR=/usr/bin/galera_recovery; [ $? -eq 0 ] && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1 (code=exited, status=0/SUCCESS) Process: 2386 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS) Main PID: 2412 (mysqld) Status: "Taking your SQL requests now…" CGroup: /system.slice/mariadb.service └─2412 /usr/sbin/mysqld May 03 21:41:26 ns2.2daygeek.com mysqld[2412]: 2020-05-03 21:41:26 140328136861440 [Warning] Host name '1.1.1.1' could not be resolved: … not knownMay 04 02:00:46 ns2.2daygeek.com mysqld[2412]: 2020-05-04 2:00:46 140328436418304 [Warning] IP address '1.1.1.1' has been resolved to the host name '2…ss itself.May 04 03:01:31 ns2.2daygeek.com mysqld[2412]: 2020-05-04 3:01:31 140328436111104 [Warning] IP address '1.1.1.1' could not be resolved: Temporary fai…resolutionMay 04 04:03:06 ns2.2daygeek.com mysqld[2412]: 2020-05-04 4:03:06 140328136861440 [Warning] IP address '1.1.1.1' could not be resolved: Name or ser… not knownMay 04 07:23:54 ns2.2daygeek.com mysqld[2412]: 2020-05-04 7:23:54 140328435189504 [Warning] IP address '1.1.1.1' could not be resolved: Name or service not knownMay 04 08:03:31 ns2.2daygeek.com mysqld[2412]: 2020-05-04 8:03:31 140328436418304 [Warning] IP address '1.1.1.1' could not be resolved: Name or service not knownMay 04 08:25:56 ns2.2daygeek.com mysqld[2412]: 2020-05-04 8:25:56 140328135325440 [Warning] IP address '1.1.1.1' could not be resolved: Name or service not knownWarning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.Hint: Some lines were ellipsized, use -l to show in full.
MySQLAdmin 是安裝 MySQL 軟件包時(shí)安裝的 MySQL 服務(wù)器命令行程序。
MySQLAdmin 客戶端允許你在 MySQL 服務(wù)器上執(zhí)行一些基本的管理功能。
它用于創(chuàng)建數(shù)據(jù)庫(kù)、刪除數(shù)據(jù)庫(kù)、設(shè)置 root 密碼、更改 root 密碼、檢查 MySQL 狀態(tài)、驗(yàn)證 MySQL 功能、監(jiān)視 mysql 進(jìn)程以及驗(yàn)證服務(wù)器的配置。
# mysqladmin -u root -pPassword version mysqladmin Ver 8.42 Distrib 5.7.27, for Linux on x86_64Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners. Server version 5.7.27Protocol version 10Connection Localhost via UNIX socketUNIX socket /var/lib/mysql/mysql.sockUptime: 1 day 10 hours 44 min 13 sec
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