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Bug #14804

closed

[keepstore] Return 5xx (not 4xx) if block is not found due to transient backend device failure

Added by Tom Clegg almost 6 years ago. Updated almost 6 years ago.

Status:
Resolved
Priority:
Normal
Assigned To:
Lucas Di Pentima
Category:
Keep
Target version:
2019-02-27 Sprint
Start date:
02/22/2019
Due date:
% Done:

100%

Estimated time:
(Total: 0.00 h)
Story points:
-
Release:
Arvados v1.4 - Q1/Q2 2019
Release relationship:
Auto

Description

Currently, when keepstore is trying to read a block, if one Azure-backed volume encounters a 503 error and all other volumes return 404, keepstore returns 404 to its client. This is a non-retryable error so the client will give up.

The correct behavior is to return a 502 or 503 status in this situation.

Azure error message:

storage: service returned error: StatusCode=503, ErrorCode=ServerBusy, ErrorMessage=The server is busy.

Subtasks 1 (0 open — 1 closed)

Task #14836: Review 14804-keepstore-transient-backend-errorsResolvedLucas Di Pentima02/22/2019

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Related issues 1 (1 open — 0 closed)

Related to Arvados - Bug #15118: [keepstore] Return 5xx (not 4xx) if block is not found due to transient backend device failureNew

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