debug kibana in chrome

kibana5.6.5版本

在kibana根目录运行命令：NODE_OPTIONS='--inspect --debug' npm start

也可以尝试命令：NODE_OPTIONS="--debug-brk --inspect'  npm start

npm start 可替换为 ./bin/kibana 或 ${project_dir}/src/cli

最后一个端口为5860的url

下面是命令执行后的日志：

caocy@ubuntu1:~/workspace/kibana-5.6.5$ NODE_OPTIONS='--inspect --debug' npm start

> kibana@5.6.5 start /home/caocy/workspace/kibana-5.6.5
> sh ./bin/kibana --dev

Debugger listening on port 9229.
Warning: This is an experimental feature and could change at any time.
To start debugging, open the following URL in Chrome:
    chrome-devtools://devtools/remote/serve_file/@60cd6e859b9f557d2312f5bf532f6aec5f284980/inspector.html?experiments=true&v8only=true&ws=127.0.0.1:9229/32809f53-3135-4523-9a5c-e5d36770bba0
 watching for changes  (407 files)
Debugger listening on port 5859.
Warning: This is an experimental feature and could change at any time.
To start debugging, open the following URL in Chrome:
    chrome-devtools://devtools/remote/serve_file/@60cd6e859b9f557d2312f5bf532f6aec5f284980/inspector.html?experiments=true&v8only=true&ws=127.0.0.1:5859/7877c417-38a6-470c-9b2e-77428acff5bf
Debugger listening on port 5860.
Warning: This is an experimental feature and could change at any time.
To start debugging, open the following URL in Chrome:
    chrome-devtools://devtools/remote/serve_file/@60cd6e859b9f557d2312f5bf532f6aec5f284980/inspector.html?experiments=true&v8only=true&ws=127.0.0.1:5860/1b36300a-30dd-4909-96f1-750c3fb8f7eb
  log   [04:08:49.225] [info][listening] basePath Proxy running at https://0.0.0.0:5701/dhe
optmzr    log   [04:08:53.402] [info][status][ui settings] Status changed from uninitialized to disabled - uiSettings.enabled config is set to `false`
optmzr    log   [04:08:54.713] [info][optimize] Lazy optimization of bundles for kibana, stateSessionStorageRedirect, timelion, sense-tests and status_page ready
server    log   [04:08:54.747] [info][optimize] Waiting for optimizer completion
optmzr    log   [04:08:54.771] [info][optimize] Lazy optimization started
optmzr    log   [04:08:54.801] [info] Plugin initialization disabled.
server    log   [04:08:54.885] [info][status][plugin:kibana@5.6.5] Status changed from uninitialized to green - Ready
server    log   [04:08:55.139] [info][status][plugin:elasticsearch@5.6.5] Status changed from uninitialized to yellow - Waiting for Elasticsearch
server    log   [04:08:55.220] [info][status][plugin:console@5.6.5] Status changed from uninitialized to green - Ready
server    log   [04:08:55.294] [info][status][plugin:metrics@5.6.5] Status changed from uninitialized to green - Ready
server    log   [04:08:55.341] [info][status][plugin:elasticsearch@5.6.5] Status changed from yellow to green - Kibana index ready
server    log   [04:08:55.871] [info][status][plugin:timelion@5.6.5] Status changed from uninitialized to green - Ready
server    log   [04:08:55.880] [info][listening] Server running at https://0.0.0.0:5603
server    log   [04:08:55.883] [info][status][ui settings] Status changed from uninitialized to green - Ready
optmzr    log   [04:09:49.859] [info][optimize] Lazy optimization success in 55.08 seconds

 

 Debugging Node.js with Chrome DevTools：

Support for Node.js debuggability landed in Node.js in 2016. Here’s how to get up and running. (Post updated Jan 2018)

1. Download and install the current version of node. (v6.3.0+ required)

2. Run node with the --inspect flag:

▸ node --inspect index.js

# Break on the first statement of the script with --inspect-brk

▸ node --inspect-brk index.js

(In Node 6, you have to use --inspect --debug-brk for this inspect & pseudo-breakpoint combo.)

Next, you used to open the big chrome-devtools:// URL it spits out, but don’t. Now there’s a better way…

3. Open about:inspect in Chrome

It’ll redirect you to chrome://inspect quickly and you’ll see something like:

set targets:

 

4. Click the Open dedicated DevTools for Node link.

You’ll get a popup window for debugging your node session.

But better than that, when you kill and restart node, the window will automatically reconnect to it. 🔁🔁💥

(Btw: the inspect link beneath the specific target will only apply for that session of node and won’t reconnect.)

点击connection,连接IP:5860,切换到sources

 

In DevTools, now connected to Node, you’ll have all the Chrome DevTools features you’re used to:

• Complete breakpoint debugging, stepping w/ blackboxing
• Source maps for transpiled code
• LiveEdit: JavaScript hot-swap evaluation w/ V8
• Console evaluation with ES6 feature/object support and custom object formatting
• Sampling JavaScript profiler w/ flamechart
• Heap snapshot inspection, heap allocation timeline, allocation profiling
• Asynchronous stacks for native promises

To see this in action, here’s my demo during the 2017 Node Summit:

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Lastly, there is now official documentation on debugging Node with the new protocol: https://nodejs.org/en/docs/inspector/