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https://issues.apache.org/jira/browse/ARROW-2876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548674#comment-16548674
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Wes McKinney commented on ARROW-2876:
-------------------------------------
What I did to fix this was to change my remote to HTTPS and switch to using an
access token to push (because I use 2FA) instead of SSH. I googled about
headless SSH clones and it may not be reliable
> [Packaging] Crossbow builds can hang if you cloned using SSH
> ------------------------------------------------------------
>
> Key: ARROW-2876
> URL: https://issues.apache.org/jira/browse/ARROW-2876
> Project: Apache Arrow
> Issue Type: Bug
> Components: Packaging
> Reporter: Wes McKinney
> Priority: Major
> Fix For: 0.10.0
>
>
> {code}
> $ git clone -b ARROW-2326 [email protected]:wesm/arrow.git arrow
> Cloning into 'arrow'...
> The authenticity of host 'github.com (192.30.253.112)' can't be established.
> RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
> Are you sure you want to continue connecting (yes/no)?
> {code}
> The workaround for now is to reclone with https
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