cmd/devp2p: submit Route53 changes in batches #20524
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This works around the 32k RDATA character limit per change request.
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Code LGTM. I do have a question around atomicity. Previously we didn't care about the order of the changes because we just applied everything or nothing. With the chunks introduced in this PR, we need to ensure that failures don't leave us in an inconsistent state. I'm not sure how the rest of the code works currently, but I guess the first entries in the batches should be adding new nodes, then the switchover to the root, then the deletions. This way a crash at any point will still keep things consistent. Is the rest of the route53 code structured to order it like this? |
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Yes, the changes should be ordered like that, but there is no explicit sorting. I will add that. |
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Maybe it is also time to add a test, this code is getting complicated... |
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Turns out the changes were not sorted correctly. Now they are, and we have a test. @karalabe PTAL. |
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Deletion requests are not accepted unless both TTL and value match the existing record. Also improve tests to catch this case.
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Added copyright header and one more bug fix. |
Seems like we're not measuring RDATA size the same way the AWS API does. Just use a lower limit to make it work.
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And one more bug fix. |
This change works around the 32k RDATA character limit per change request and fixes several issues in the deployer which prevented it from working for our production trees.
This works around the 32k RDATA character limit per change request.