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                ## 一、前言 Logstash 內置了120種默認表達式,可以查看patterns,里面對表達式做了分組,每個文件為一組,文件內部有對應的表達式模式。下面只是部分常用的。 ## 二、常用表達式 | 表達式標識 | 名稱 | 詳情 | 匹配例子 | | --- | --- | --- | --- | | USERNAME 或 USER | 用戶名 | 由數字、大小寫及特殊字符(.\_-)組成的字符串 | 1234、Bob、Alex.Wong | | EMAILLOCALPART | 用戶名 | 首位由大小寫字母組成,其他位由數字、大小寫及特殊字符(\_.+-=:)組成的字符串。注意,國內的QQ純數字郵箱賬號是無法匹配的,需要修改正則 | windcoder、windcoder\_com、abc-123 | | EMAILADDRESS | 電子郵件 | | [windcoder@abc.com](mailto:windcoder@abc.com)、windcoder\_com@gmail.com、abc-123@163.com | | HTTPDUSER | Apache服務器的用戶 | 可以是EMAILADDRESS或USERNAME | | | INT | 整數 | 包括0和正負整數 | 0、-123、43987 | | BASE10NUM 或 NUMBER | 十進制數字 | 包括整數和小數 | 0、18、5.23 | | BASE16NUM | 十六進制數字 | 整數 | 0x0045fa2d、-0x3F8709 | | WORD | 字符串 | 包括數字和大小寫字母 | String、3529345、ILoveYou | | NOTSPACE | 不帶任何空格的字符串 | | | | SPACE | 空格字符串 | | | | QUOTEDSTRING 或 QS | 帶引號的字符串 | | “This is an apple”、’What is your name?’ | | UUID | 標準UUID | | 550E8400-E29B-11D4-A716-446655440000 | | MAC | MAC地址 | 可以是Cisco設備里的MAC地址,也可以是通用或者Windows系統的MAC地址 | | | IP | IP地址 | IPv4或IPv6地址 | 127.0.0.1、FE80:0000:0000:0000:AAAA:0000:00C2:0002 | | HOSTNAME | IP或者主機名稱 | | | | HOSTPORT | 主機名(IP)+端口 | | 127.0.0.1:3306、[api.windcoder.com:8000](http://api.windcoder.com:8000/) | | PATH | 路徑 | Unix系統或者Windows系統里的路徑格式 | /usr/local/nginx/sbin/nginx、c:\\windows\\system32\\clr.exe | | URIPROTO | URI協議 | | http、ftp | | URIHOST | URI主機 | | [windcoder.com](http://windcoder.com/)、10.0.0.1:22 | | URIPATH | URI路徑 | | [//windcoder.com/abc/、/api.php](https://windcoder.com/abc/%E3%80%81/api.php) | | URIPARAM | URI里的GET參數 | | ?a=1&b=2&c=3 | | URIPATHPARAM | URI路徑+GET參數 | /windcoder.com/abc/api.php?a=1&b=2&c=3 | | | URI | 完整的URI | | [https://windcoder.com/abc/api.php?a=1&b=2&c=3](https://windcoder.com/abc/api.php?a=1&b=2&c=3) | | LOGLEVEL | Log表達式 | Log表達式 | Alert、alert、ALERT、Error | ## 三、日期時間表達式 | 表達式標識 | 名稱 | 匹配例子 | | --- | --- | --- | | MONTH | 月份名稱 | Jan、January | | MONTHNUM | 月份數字 | 03、9、12 | | MONTHDAY | 日期數字 | 03、9、31 | | DAY | 星期幾名稱 | Mon、Monday | | YEAR | 年份數字 | | | HOUR | 小時數字 | | | MINUTE | 分鐘數字 | | | SECOND | 秒數字 | | | TIME | 時間 | 00:01:23 | | DATE\_US | 美國時間 | 10-01-1892、10/01/1892/ | | DATE\_EU | 歐洲日期格式 | 01-10-1892、01/10/1882、01.10.1892 | | ISO8601\_TIMEZONE | ISO8601時間格式 | +10:23、-1023 | | TIMESTAMP\_ISO8601 | ISO8601時間戳格式 | 2016-07-03T00:34:06+08:00 | | DATE | 日期 | 美國日期%{DATE\_US}或者歐洲日期%{DATE\_EU} | | DATESTAMP | 完整日期+時間 | 07-03-2016 00:34:06 | | HTTPDATE | http默認日期格式 | 03/Jul/2016:00:36:53 +0800 | ## 四、使用例子 ### 4.1. 例1 ~~~ [2020-08-22 12:25:51.441] [TSC_IHU] [ERROR] [c.e.c.t.i.t.s.IhuTsaUplinkServiceImpl] Activation/Bind uplink, query UserSession by Token failure! ~~~ grok配置: ~~~ \[%{TIMESTAMP_ISO8601:time}\]\s*%{DATA:thread}\s*\[%{LOGLEVEL:level}\]\s*%{GREEDYDATA:data} ~~~ 輸出結果如下: ~~~ { "data": "[c.e.c.t.i.t.s.IhuTsaUplinkServiceImpl] Activation/Bind uplink, query UserSession by Token failure!", "level": "ERROR", "time": "2020-08-22 12:25:51.441", "thread": "[TSC_IHU]" } ~~~ ### 4.2. 例2 ~~~ 2020-09-12 14:16:36.320+08:00 INFO 930856f7-c78f-4f12-a0f1-83a2610b2dfc DispatcherConnector ip-192-168-114-244 [Mqtt-Device-1883-worker-18-1] com.ericsson.sep.dispatcher.api.transformer.v1.MessageTransformer {"TraceID":"930856f7-c78f-4f12-a0f1-83a2610b2dfc","clientId":"5120916600003466K4GA1059","username":"LB37622Z3KX609880"} ~~~ grok配置: ~~~ %{TIMESTAMP_ISO8601:access_time}\s*%{LOGLEVEL:level}\s*%{UUID:uuid}\s*%{WORD:word}\s*%{HOSTNAME:hostname}\s*\[%{DATA:work}\]\s*(?<api>([\S+]*))\s*(?<TraceID>([\S+]*))\s*%{GREEDYDATA:message_data} ~~~ 輸出結果如下: ~~~ { "level": "INFO", "work": "Mqtt-Device-1883-worker-18-1", "uuid": "930856f7-c78f-4f12-a0f1-83a2610b2dfc", "hostname": "ip-192-168-114-244", "message_data": "", "TraceID": "{\"TraceID\":\"930856f7-c78f-4f12-a0f1-83a2610b2dfc\",\"clientId\":\"5120916600003466K4GA1059\",\"username\":\"LB37622Z3KX609880\"}", "api": "com.ericsson.sep.dispatcher.api.transformer.v1.MessageTransformer", "word": "DispatcherConnector", "access_time": "2020-09-12 14:16:36.320+08:00" } ~~~ ### 4.3. 例3 ~~~ 192.168.125.138 - - [12/Sep/2020:14:10:58 +0800] "GET /backend/services/ticketRemind/query?cid=&msgType=1&pageSize=100&pageIndex=1&langCode=zh HTTP/1.1" 200 91 ~~~ grok配置: ~~~ %{IP:ip}\s*%{DATA:a}\s*\[%{HTTPDATE:access_time}\]\s*%{DATA:b}%{WORD:method}\s*%{URIPATH:url}%{URIPARAM:param}\s*%{URIPROTO:uri}%{DATA:c}%{NUMBER:treaty}%{DATA:d}\s*%{NUMBER:status}\s*%{NUMBER:latency_millis} ~~~ 輸出結果如下: ~~~ { "a": "- -", "b": "\"", "c": "/", "method": "GET", "d": "\"", "ip": "192.168.125.138", "latency_millis": "91", "uri": "HTTP", "url": "/backend/services/ticketRemind/query", "param": "?cid=&msgType=1&pageSize=100&pageIndex=1&langCode=zh", "treaty": "1.1", "access_time": "12/Sep/2020:14:10:58 +0800", "status": "200" } ~~~ ### 4.4. 例4 ~~~ [08/Nov/2020:11:40:24 +0800] tc-com.g-netlink.net - - 192.168.122.58 192.168.122.58 192.168.125.135 80 GET 200 /geelyTCAccess/tcservices/capability/L6T7944Z0JN427155 ?pageIndex=1&pageSize=2000&vehicleType=0 21067 17 ~~~ grok配置: ~~~ \[%{HTTPDATE:access_time}\] %{DATA:hostname} %{DATA:username} %{DATA:fwd_for} %{DATA:remote_hostname} %{IP:remote_ip} %{IP:local_ip} %{NUMBER:local_port} %{DATA:method} %{DATA:status} %{DATA:uri} %{DATA:query} %{NUMBER:bytes} %{NUMBER:latency_ms} ~~~ 輸出結果如下: ~~~ { "method": "GET", "local_port": "80", "fwd_for": "-", "query": "?pageIndex=1&pageSize=2000&vehicleType=0", "remote_hostname": "192.168.122.58", "uri": "/geelyTCAccess/tcservices/capability/L6T7944Z0JN427155", "latency_ms": "17", "local_ip": "192.168.125.135", "hostname": "tc-com.g-netlink.net", "remote_ip": "192.168.122.58", "bytes": "21067", "access_time": "08/Nov/2020:11:40:24 +0800", "username": "-", "status": "200" } ~~~
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