<p></p>
<p dir="auto">The place where such a call should be made is probably <a href="https://github.com/openstreetmap/mod_tile/blob/50afe3e35161786c890d5fab5b8c3b6c4444eb5e/src/mod_tile.c#L1550">https://github.com/openstreetmap/mod_tile/blob/50afe3e35161786c890d5fab5b8c3b6c4444eb5e/src/mod_tile.c#L1550</a></p>
<p dir="auto">Most broken tiles I have witnessed were the result of a disk full condition. In 95% of cases they would be 0-byte files which can easily be cleaned up with a "find" operation, but at least for the tirex backend it is possible that a truncated meta tile gets created (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="1241387388" data-permission-text="Title is private" data-url="https://github.com/openstreetmap/tirex/issues/51" data-hovercard-type="issue" data-hovercard-url="/openstreetmap/tirex/issues/51/hovercard" href="https://github.com/openstreetmap/tirex/issues/51">openstreetmap/tirex#51</a>). It is possible that the problem does not exist for renderd at all but still people could copy meta tiles from one box to the other or find other means to create broken meta tiles.</p>

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