Question

Logstash和多线协同工作遇到一些困难

我正在使用Logspout容器将所有stdout日志条目作为syslog转发到logstash。

这是logstash收到的最终内容。这里有多行代表两个事件。

<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]: 2015-02-10 11:55:38.496  INFO 1 --- [tp1302304527-19] c.z.service.DefaultInvoiceService        : Creating with DefaultInvoiceService started...
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]: 2015-02-10 11:55:48.596  WARN 1 --- [tp1302304527-19] o.eclipse.jetty.servlet.ServletHandler   : 
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]: 
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]: org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.DataAccessResourceFailureException: Timed out after 10000 ms while waiting for a server that matches AnyServerSelector{}. Client view of cluster state is {type=Unknown, servers=[{address=mongo:27017, type=Unknown, state=Connecting, exception={com.mongodb.MongoException$Network: Exception opening the socket}, caused by {java.net.UnknownHostException: mongo: unknown error}}]; nested exception is com.mongodb.MongoTimeoutException: Timed out after 10000 ms while waiting for a server that matches AnyServerSelector{}. Client view of cluster state is {type=Unknown, servers=[{address=mongo:27017, type=Unknown, state=Connecting, exception={com.mongodb.MongoException$Network: Exception opening the socket}, caused by {java.net.UnknownHostException: mongo: unknown error}}]
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]:    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]:    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]:    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
<14>2015-02-09T14:25:01Z logspout dev_zservice_1[1]:    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)

每个日志行都以syslog head开头。

根据上面的日志内容我创建了logstash配置文件。

input {
  udp {
    port => 5000
    type => syslog
  }
}

filter {
  multiline {
    pattern => "^<%{NUMBER}>%{TIMESTAMP_ISO8601} %{SYSLOGHOST:container_name} %{DATA}(?:\[%{POSINT}\])?:%{SPACE}%{TIMESTAMP_ISO8601}"
    negate => true
    what => "previous"
    stream_identity => "%{container_name}"
  }

  grok {
    match => [ "message", "(?m)^<%{NUMBER}>%{TIMESTAMP_ISO8601} %{SYSLOGHOST} %{DATA:container_name}(?:\[%{POSINT}\])?:%{SPACE}%{TIMESTAMP_ISO8601:timestamp}%{SPACE}%{LOGLEVEL:loglevel}%{SPACE}%{NUMBER}%{SPACE}---%{SPACE}(?:\[%{DATA:threadname}\])?%{SPACE}%{JAVACLASS:clas
  }

  date {
    match => [ "timestamp", "yyyy-MM-dd HH:mm:ss.SSS" ]
    remove_field => ["timestamp"]
  }
  if !("_grokparsefailure" in [tags]) {
    mutate {
      replace => [ "source_host", "%{container_name}" ]
      replace => [ "raw_message", "%{message}" ]
      replace => [ "message", "%{logmessage}" ]
      remove_field => [ "logmessage", "host", "source_host" ]
    }
  }
  mutate {
    strip => [ "threadname" ]
  }
}

output {
  elasticsearch { }
}

现在，当上述事件到来时，第一个事件被正确解析并显示：

message = "Creating with DefaultInvoiceService started..."

第二个事件包含此消息，其中包含三个问题：

<14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]: 

<14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]: org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.DataAccessResourceFailureException: Timed out after 10000 ms while waiting for a server that matches AnyServerSelector{}. Client view of cluster state is {type=Unknown, servers=[{address=mongo:27017, type=Unknown, state=Connecting, exception={com.mongodb.MongoException$Network: Exception opening the socket}, caused by {java.net.UnknownHostException: mongo: unknown error}}]; nested exception is com.mongodb.MongoTimeoutException: Timed out after 10000 ms while waiting for a server that matches AnyServerSelector{}. Client view of cluster state is {type=Unknown, servers=[{address=mongo:27017, type=Unknown, state=Connecting, exception={com.mongodb.MongoException$Network: Exception opening the socket}, caused by {java.net.UnknownHostException: mongo: unknown error}}]

<14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]:    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)

<14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]:    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)

<14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]:    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)

<14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]:    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)

<14>2015-02-10T12:59:09Z logspout dev_nginx_1[1]: 192.168.59.3 - - [10/Feb/2015:12:59:09 +0000] "POST /api/invoice/ HTTP/1.1" 500 1115 "http://192.168.59.103/"; "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.94 Safari/537.36" "-"

消息文本包含一行 dev_nginx_1 条目，该条目不属于此处。这应该被视为一个单独的事件。
每行包含前缀。 <14>2015-02-10T12:59:09Z logspout dev_zservice_1[1]:
每一行都有一个额外的新行

问题。为什么 dev_nginx_1 条目本身不是一个事件。为什么它被认为属于前一个？如何在消息的每一行中删除syslog前缀。如何摆脱额外的新线？

Answer 1

对于（1），您在多行中使用container_name。这是时间戳之后的字段。在您的示例中，他们全部＆＃34; logspout＆＃34;。似乎对我来说。

对于（2），每行都带有前缀和时间戳，所以你可以预期它们默认存在。您正在mutate{}使用message替换log_message，但我没有看到您正在设置log_message。那你怎么看待前缀和时间戳被删除了呢？

Answer 2

对于（1），将多行模式中的%{SYSLOGHOST:container_name} %{DATA}替换为%{SYSLOGHOST} %{DATA:container_name}（正如您在grok中使用的那样）。

对于（2）和（3），你可以尝试这样的事情：

mutate {
    gsub => [ "message", "<\d+>.*?:\s", "", "message", "\n(\n)", "\1" ]
}

此处，gsub设置正在执行两项操作：

检查字段“message”，找到“＆lt; 14＆gt;”中的子字符串以冒号后跟空格，并用空字符串替换这些子字符串。
检查字段“message”，找到由两个连续换行符组成的子串，并用一个换行符替换它们。它使用对\1组的(\n)后退来执行替换，因为如果您尝试使用\n本身，Logstash实际上会将其替换为\\n，而不是工作

使用Syslog进行Logstash Multiline

2 个答案: