1. There is no problem with the local test, and there is a problem that you cannot connect to the formal environment when you go online.
2. Now install all the hadoop clusters on one machine and rule out the network reasons.
1. There is no problem with the local test, and there is a problem that you cannot connect to the formal environment when you go online.
2. Now install all the hadoop clusters on one machine and rule out the network reasons.
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