需要先判断文件是否存在。

[JacksonTian]

2018-04-18 16:44:01,879 ERROR 108558 nodejs.Error: Command failed: cat /proc/63968/environ
cat: /proc/63968/environ: 权限不够

cat: /proc/63968/environ: 权限不够

    at ChildProcess.exithandler (child_process.js:275:12)
    at emitTwo (events.js:126:13)
    at ChildProcess.emit (events.js:214:7)
    at maybeClose (internal/child_process.js:925:16)
    at Socket.stream.socket.on (internal/child_process.js:346:11)
    at emitOne (events.js:116:13)
    at Socket.emit (events.js:211:7)
    at Pipe._handle.close [as _onclose] (net.js:554:12)
killed: false
code: 1
signal: null
cmd: 'cat /proc/63968/environ'
pid: 108558

63968 已经不存在。

[zhangzifa]

什么机器? 我本地ubuntu上的结果

> { Error: Command failed: cat /proc/12345/environ
cat: /proc/12345/environ: No such file or directory

    at ChildProcess.exithandler (child_process.js:275:12)
    at emitTwo (events.js:126:13)
    at ChildProcess.emit (events.js:214:7)
    at maybeClose (internal/child_process.js:925:16)
    at Socket.stream.socket.on (internal/child_process.js:346:11)
    at emitOne (events.js:116:13)
    at Socket.emit (events.js:211:7)
    at Pipe._handle.close [as _onclose] (net.js:567:12)
  killed: false,
  code: 1,
  signal: null,
  cmd: 'cat /proc/12345/environ' }

[viko16]

同样遇到。

另外遇到这样的异常，是否也是类似的问题呢？

2018-08-29 08:50:32,090 ERROR 207 nodejs.ENOENTError: ENOENT: no such file or directory, scandir '/storage/logs/coredump'
Error: ENOENT: no such file or directory, scandir '/storage/logs/coredump'
errno: -2
code: "ENOENT"
syscall: "scandir"
path: "/storage/logs/coredump"
name: "ENOENTError"
pid: 207

[zhangzifa]

@viko16 你的agentx版本？

[viko16]

@zhangzifa 由 egg-alinode 引入

• agentx 1.9.11
• egg-alinode 2.0.1
• node 8.11.3

[zhangzifa]

/storage/logs/coredump 这个目录存在吗？

[viko16]

@zhangzifa 这个目录不存在

[zhangzifa]

这个是你配置的目录？还是agentx自己识别出来的目录？

另外：如果配置了不存在的目录，每次扫描的时候，都会写这条日志，但是功能上没影响