<p>Just to add a bit of detail here, we already have rate limiting on the changeset upload call on cgimap, which is currently based on the number of bytes returnes by the call (like it is done for the /map call).  Once you hit the limit, the upload would be rejected via HTTP 509 Bandwidth Limit Exceeded. It's not a permanent block either, so it wouldn't place too much of a burden on sysadmins.</p>
<p>Admittedly, looking at the number of bytes is not effective by any means to stop the users mentioned here (main reason being that the diffResult message usually comes with a rather tiny amount of bytes compared to a /map call). ;aybe we could evolve this approach by defining some more meaningful criteria.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/openstreetmap/openstreetmap-website/issues/2342?email_source=notifications&email_token=AAK2OLJKR637ZSHZW4MAOBTQDF2GDA5CNFSM4IJTW3X2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3VCZSA#issuecomment-518663368">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AAK2OLPKXFNZSNAWRHDHPL3QDF2GDANCNFSM4IJTW3XQ">mute the thread</a>.<img src="https://github.com/notifications/beacon/AAK2OLKCM7CV2CST5IGVL3LQDF2GDA5CNFSM4IJTW3X2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3VCZSA.gif" height="1" width="1" alt="" /></p>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/openstreetmap/openstreetmap-website/issues/2342?email_source=notifications\u0026email_token=AAK2OLJKR637ZSHZW4MAOBTQDF2GDA5CNFSM4IJTW3X2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3VCZSA#issuecomment-518663368",
"url": "https://github.com/openstreetmap/openstreetmap-website/issues/2342?email_source=notifications\u0026email_token=AAK2OLJKR637ZSHZW4MAOBTQDF2GDA5CNFSM4IJTW3X2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3VCZSA#issuecomment-518663368",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>