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https://issues.apache.org/jira/browse/FLINK-14481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Nowojski reassigned FLINK-14481:
--------------------------------------
Assignee: AT-Fieldless
> Modify the Flink valid socket port check to 0 to 65535.
> -------------------------------------------------------
>
> Key: FLINK-14481
> URL: https://issues.apache.org/jira/browse/FLINK-14481
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Affects Versions: 1.9.1
> Reporter: ming li
> Assignee: AT-Fieldless
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.10.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In Flink, I found that Flink's socket port check is 'port >= 0 && port <=
> 65536.
> {code:java}
> checkArgument(serverPort >= 0 && serverPort <= 65536, "Invalid port
> number.");{code}
> But in the process of binding the port, the valid port is 0 to 65535(A port
> number of zero will let the System pick up anephemeral port in a bin
> operation). Although the 65536 port will fail due to the port out of range
> when actually binding, Flink has already done a valid range check on the
> port, which seems to be very confusing. Should we modify Flink's port check
> to 0 to 65535?
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