如何根据日期过滤 bunyan 日志？

Question

获得了 bunyan 日志，这是一个示例条目

[2016-05-31T15:38:47.889Z] FATAL: jklajsd-utilities/23399 on aaa.bbb.ccc.com: 
    0: {
      "code": "EADDRINUSE",
      "errno": "EADDRINUSE",
      "syscall": "listen",
      "address": "0.0.0.0",
      "port": 5566
    }

好的，我想找到那个条目之后的所有条目：

bunyan /opt/aaa/.pm2/logs/cccc-out-15.log -c 'this.date >= new Date("2016-05-31T15:38:47.889Z")'

没有结果。也尝试使用 this.time。 bunyan 文档说 time 是正确的字段，但它不起作用。 new Date("2016-05-31T15:38:47.889Z")' 有效：

> new Date("2016-05-31T15:58:50.475Z")
Tue May 31 2016 08:58:50 GMT-0700 (PDT)

日志过滤确实有效：

$ bunyan /opt/aaa/.pm2/logs/cccc-out-15.log -c 'this.level === DEBUG ' |wc -l 
102455

$ bunyan /opt/aaa/.pm2/logs/cccc-out-15.log -c 'this.level === FATAL '|wc -l 
1679

将年份更改为 2015 年没有任何作用。

那么我在日期过滤方面做错了什么？

Answer 1

答案似乎是在调用bunyan之前进行过滤：

cat /opt/xyz/.pm2/logs/whiskey-tango-out-15.log | grep "2016-10-11" | bunyan -o short

产生：

[2016-10-11T22:33:08.836Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 3
[2016-10-11T22:33:08.837Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 2
[2016-10-11T22:33:08.837Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 1
[2016-10-11T22:33:08.838Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 3
[2016-10-11T22:33:08.838Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 2
[2016-10-11T22:33:08.838Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 2
[2016-10-11T22:33:08.839Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 6
[2016-10-11T22:33:08.839Z]  WARN: whiskey-tango/8828 on [redacted]: Post failed, retrying, count: 3

适合我。不过，似乎它应该可以通过 bunyan 命令行实现。

Answer 2

JSON中的时间存储为字符串。所以比较之前需要先转换一下。

bunyan /opt/aaa/.pm2/logs/cccc-out-15.log -c 'new Date(this.time) >= new Date("2016-05-31T15:38:47.889Z")'

如何根据日期过滤 bunyan 日志？

how do I filter a bunyan log based on date?

node.js

bunyan