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https://issues.apache.org/jira/browse/STORM-3396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stig Rohde Døssing resolved STORM-3396.
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Resolution: Fixed
Fix Version/s: 2.0.1
> uploading dependency jars too slow when StormSubmitter and Nimbus located in
> different IDC
> ------------------------------------------------------------------------------------------
>
> Key: STORM-3396
> URL: https://issues.apache.org/jira/browse/STORM-3396
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-core
> Affects Versions: 2.0.0, 1.2.2
> Reporter: StaticMian
> Assignee: StaticMian
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.0.1
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> when storm client and server is locating in different IDC(one is in
> Beijing, while another in Shanghai), uploading dependency jars may take a
> very long long time(in my case, 31minutes!)...
> when I digged into this, I found that in DependencyUploader, method
> "uploadDependencyToBlobStore" using JDK NIO's Files.copy to upload local jars
> to remote Blob server. In Files.copy(Path, OutputStream), the buffer size is
> 8k by default, given that latency between Beijing and Shanghai is about 20ms,
> a dependency fat jar of 360M finally cost me 'a lunch time' to finish
> uploading!!!
>
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