cluster/node events (#1855) #3083
Conversation
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@NaughtySora hi, sorry for big delay! This looks good! Could I ask you to:
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add test template for the new cluster events
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Hi, thank you for the reply @nkaradzhov . I've added the test example from your PR, and I will proceed with the steps above . |
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I added documentation inspired by standalone client.
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testUtils.testWithCluster('foo', async cluster => {
//tests
}, {
serverArguments: [],
numberOfMasters: 3,
numberOfReplicas: 3
});
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I've found the way to make test more safe and changed docs a bit for more clear description. |
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Hi, facing weird test behavior. |
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@NaughtySora it looks like we are using an optimization for testing, which tries to minimize connections if there are no commands yet. I made a PR to your repo that fixes the test. |
| assert.equal(log.length, disconnect); | ||
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| assert.deepEqual( | ||
| log.slice(0, nodeConnect), | ||
| new Array(numberOfMasters).fill('node-connect'), | ||
| ); | ||
| assert.deepEqual( | ||
| log.slice(nodeConnect, nodeReady), | ||
| new Array(numberOfMasters).fill('node-ready'), | ||
| ); | ||
| assert.deepEqual( | ||
| log.slice(nodeReady, connect), | ||
| new Array(1).fill('connect'), | ||
| ); | ||
| assert.deepEqual( | ||
| log.slice(connect, nodeDisconnect), | ||
| new Array(numberOfMasters).fill('node-disconnect'), | ||
| ); | ||
| assert.deepEqual( | ||
| log.slice(nodeDisconnect, disconnect), | ||
| new Array(1).fill('disconnect'), | ||
| ); | ||
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| assert.equal(log.includes('error'), false); | ||
| assert.equal(log.includes('node-error'), false); | ||
| assert.equal(log.includes('node-reconnecting'), false); |
There was a problem hiding this comment.
I think we can simplify this by just asserting the log is equal to the expected log. For example:
assert.deepEqual(log, [
'node-connect',
'node-connect',
'node-connect',
'node-ready',
'node-ready',
'node-ready',
'connect',
'node-disconnect',
'node-disconnect',
'node-disconnect',
'disconnect'
]
Description
Adding events for cluster client, some people were interested in it.
I have read the issue but didn't see any concrete approved suggestions so i come up with some.
for cluster:
for nodes:
Node events provide host/port to identify a particular node.
I would like to hear suggestions or opinion if this feature needed.
issue #1855
Checklist
Does
npm testpass with this change (including linting)?I tried to run tests via npm run build and npm test but it fails with timeout "before hook" after 30000ms after 1 hour of going a couple of time. But git checks are fine i guess.
Is the new or changed code fully tested?
I haven't seen any tests for emitting events, i have tested it only locally.
Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
Can't find where i can update desctiption about cluster events.
I saw small section of client events on redis website.
Can't update that.