Svetoslav Neykov created JCLOUDS-1296:
-----------------------------------------
Summary: Azure ARM SubnetApi retry handler for "HTTP/1.1 409
Conflict"
Key: JCLOUDS-1296
URL: https://issues.apache.org/jira/browse/JCLOUDS-1296
Project: jclouds
Issue Type: Bug
Affects Versions: 2.0.1
Reporter: Svetoslav Neykov
When doing changes on a subnet (e.x. adding one) the parent virtual network is
set to the "updating" state. While in this state any other request to change a
subnet will fail with "409 Conflict" response. The response body contains:
{noformat}
{
"error": {
"code": "AnotherOperationInProgress",
"message": "Another operation on this or dependent resource is in progress.
To retrieve status of the operation use uri:
https://management.azure.com/subscriptions/<subscription
id>/providers/Microsoft.Network/locations/westeurope/operations/b83705f8-77d2-4e68-9ac6-647db146106b?api-version=2017-03-01.",
"details": []
}
}
{noformat}
The request-response pair:
{noformat}
2017-05-12 12:34:40,027 DEBUG 106 j.headers [ager-NxN8ADpS-26] >> PUT
https://management.azure.com/subscriptions/<subscription
id>/resourcegroups/jclouds-westeurope/providers/Microsof
t.Network/virtualNetworks/network-security-vnet-o6sjw3y2cj/subnets/lb-tier?api-version=2017-03-01
HTTP/1.1
2017-05-12 12:34:40,027 DEBUG 106 j.headers [ager-NxN8ADpS-26] >> Accept:
application/json
2017-05-12 12:34:40,027 DEBUG 106 j.headers [ager-NxN8ADpS-26] >> Content-Type:
application/json
2017-05-12 12:34:40,027 DEBUG 106 j.headers [ager-NxN8ADpS-26] >>
Content-Length: 48
2017-05-12 12:34:40,535 DEBUG 106
o.j.i.ContentMetadataCodec$DefaultContentMetadataCodec [ager-NxN8ADpS-26]
Invalid Expires header (-1); should be in RFC-1123 format; treating as already
expired: Error
parsing data at 0
2017-05-12 12:34:40,536 DEBUG 106 o.j.h.o.OkHttpCommandExecutorService
[ager-NxN8ADpS-26] Receiving response 1361047216: HTTP/1.1 409 Conflict
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] << HTTP/1.1 409
Conflict
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] << Date: Fri, 12
May 2017 09:34:39 GMT
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
OkHttp-Received-Millis: 1494581680535
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
OkHttp-Selected-Protocol: http/1.1
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
OkHttp-Sent-Millis: 1494581680029
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] << Pragma:
no-cache
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] << Server:
Microsoft-HTTPAPI/2.0
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] << Server:
Microsoft-HTTPAPI/2.0
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
Strict-Transport-Security: max-age=31536000; includeSubDomains
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
x-ms-correlation-request-id: a5fe53d2-dfd6-4381-a73b-37457f721a0b
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
x-ms-ratelimit-remaining-subscription-writes: 1195
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
x-ms-request-id: 0820fa55-9e4f-45b5-9b88-f71ea1fcb731
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
x-ms-routing-request-id:
CANADAEAST:20170512T093440Z:a5fe53d2-dfd6-4381-a73b-37457f721a0b
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
Cache-Control: no-cache
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] << Content-Type:
application/json; charset=utf-8
2017-05-12 12:34:40,536 DEBUG 106 j.headers [ager-NxN8ADpS-26] <<
Content-Length: 414
2017-05-12 12:34:40,537 DEBUG 106 j.headers [ager-NxN8ADpS-26] << Expires: Thu
Jan 01 02:00:00 EET 1970
{noformat}
While this could be handled at the application level, would be useful to add
subnet-specific retry logic to retry the requests on the jclouds side.
Details for the behaviour can be found in the "MS-NCNBI (Network Controller
Northbound Interface)" spec, section "1.3.3 Concurrent Operations". It's not
really clear but I assume "parent-child tree" there refers to a virtual network
and its children subnet resources.
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