EPSG 3857 service returning 404s

[sethjhs9]

The EPSG 3857 service is returning incorrect tiles and 404 statuses. The bug is easy to see by scrolling/zooming in the NASA example: https://nasa-gibs.github.io/gibs-web-examples/examples/openlayers/webmercator-epsg3857.html

[jtroberts]

This was a GIBS server issue with the EPSG3857 reprojection endpoint that was resolved over the weekend. We'll assess whether we can make improvements in the OnEarth software to prevent the issue from reoccurring.

[sethjhs9]

Hey there, Looks like this issue has returned. You can see the error easily here: https://nasa-gibs.github.io/gibs-web-examples/examples/openlayers/webmercator-epsg3857.html How can I help resolve this? Cheers, Seth

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On Tue, Jul 16, 2024 at 10:45 PM Joe T. Roberts ***@***.***> wrote: This was a GIBS server issue with the EPSG3857 reprojection endpoint that was resolved over the weekend. We'll assess whether we can make improvements in the OnEarth software to prevent the issue from reoccurring. — Reply to this email directly, view it on GitHub <#183 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A27UKMLL6T6VK4YP6RJU2E3ZMYAGVAVCNFSM6AAAAABK2L2H7CVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMZSGQ3DINBTGM> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[lucianpls]

@jtroberts, is this due to the use of the ecache module and the disk filling up?

[jtroberts]

No, it's a server startup configuration issue when GIBS scales up new instances. The EPSG3857 endpoints use the reproject servers which rely on the EPSG4326 layer configurations to determine whether the layers are time-dynamic on startup. On rare occasions, the time configurations can't be read and the EPSG3857 endpoint configures that layer as static (not time-dynamic) and will serve tiles for the default time regardless of what is provided in the time parameter. The load balancer will distribute requests between good and bad servers (causing that slicing effect). A permanent fix is being developed and isn't in place yet.