Hi Team,
I have been trying to understand the flow of the PutBucketReplication API.
For this I have the following setup:
I am running 2 instances of RGW on a single vm. My first instance runs on port 8000, while the other does on 8001.
My main zone resides on instance 127.0.0.1:8000 and secondary on 127.0.0.1:8001. I have created 2 buckets 'bucket1' and 'bucket2' respectively in zones.
Where I treat bucket1 as source and bucket2 as destination.
For PutBucketReplication API I am making the following request:
PUT http://127.0.0.1:8001/bucket2?replication
<ReplicationConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Role></Role><Rule><Status>Enabled</Status><ID>Rule-1</ID><Filter> <And><Tag><Key>key1</Key><Value>value1</Value></Tag><Tag><Key>key2</Key><Value>value2</Value></Tag></And></Filter><Source><Zone>us-east</Zone></Source><Priority>11</Priority><DeleteMarkerReplication><Status>Disabled</Status></DeleteMarkerReplication><Destination><Bucket>bucket2</Bucket><Zone>us-west</Zone></Destination></Rule></ReplicationConfiguration>
And I noticed under 'RGWPutBucketReplication::execute()' it is calling a method named 'forward_request_to_master()' which creates a REST request and forwards it to the main zone.
I have captured the request which is sent to main zone as displayed below:
PUT http://127.0.0.1:8000/bucket2?replication&rgwx-uid=tester1&rgwx-zonegroup=2496e18c-cceb-4dbe-a0fc-5b693193bd8b
<ReplicationConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Role></Role><Rule><Status>Enabled</Status><ID>Rule-1</ID><Filter> <And><Tag><Key>key1</Key><Value>value1</Value></Tag><Tag><Key>key2</Key><Value>value2</Value></Tag></And></Filter><Source><Zone>us-east</Zone></Source><Priority>11</Priority><DeleteMarkerReplication><Status>Disabled</Status></DeleteMarkerReplication><Destination><Bucket>bucket2</Bucket><Zone>us-west</Zone></Destination></Rule></ReplicationConfiguration>
Now I also noticed that even after forwarding the request to the main zone, the secondary zone doesn't return and continues with the request and later updates bucket info via 'RadosBucket::put_info()', which is also done by the main zone.
So I am not able to understand this behavior, that why is the request is being carried out by both the secondary zone and main zone.
Please let me know if I am missing something.
Thank You,
Mayank Srivastava
I have been trying to understand the flow of the PutBucketReplication API.
For this I have the following setup:
I am running 2 instances of RGW on a single vm. My first instance runs on port 8000, while the other does on 8001.
My main zone resides on instance 127.0.0.1:8000 and secondary on 127.0.0.1:8001. I have created 2 buckets 'bucket1' and 'bucket2' respectively in zones.
Where I treat bucket1 as source and bucket2 as destination.
For PutBucketReplication API I am making the following request:
PUT http://127.0.0.1:8001/bucket2?replication
<ReplicationConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Role></Role><Rule><Status>Enabled</Status><ID>Rule-1</ID><Filter> <And><Tag><Key>key1</Key><Value>value1</Value></Tag><Tag><Key>key2</Key><Value>value2</Value></Tag></And></Filter><Source><Zone>us-east</Zone></Source><Priority>11</Priority><DeleteMarkerReplication><Status>Disabled</Status></DeleteMarkerReplication><Destination><Bucket>bucket2</Bucket><Zone>us-west</Zone></Destination></Rule></ReplicationConfiguration>
And I noticed under 'RGWPutBucketReplication::execute()' it is calling a method named 'forward_request_to_master()' which creates a REST request and forwards it to the main zone.
I have captured the request which is sent to main zone as displayed below:
PUT http://127.0.0.1:8000/bucket2?replication&rgwx-uid=tester1&rgwx-zonegroup=2496e18c-cceb-4dbe-a0fc-5b693193bd8b
<ReplicationConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Role></Role><Rule><Status>Enabled</Status><ID>Rule-1</ID><Filter> <And><Tag><Key>key1</Key><Value>value1</Value></Tag><Tag><Key>key2</Key><Value>value2</Value></Tag></And></Filter><Source><Zone>us-east</Zone></Source><Priority>11</Priority><DeleteMarkerReplication><Status>Disabled</Status></DeleteMarkerReplication><Destination><Bucket>bucket2</Bucket><Zone>us-west</Zone></Destination></Rule></ReplicationConfiguration>
Now I also noticed that even after forwarding the request to the main zone, the secondary zone doesn't return and continues with the request and later updates bucket info via 'RadosBucket::put_info()', which is also done by the main zone.
So I am not able to understand this behavior, that why is the request is being carried out by both the secondary zone and main zone.
Please let me know if I am missing something.
Thank You,
Mayank Srivastava
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