Re: RGW pool contents

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Hi,

Did you try to use the cleanup and dispose steps of cosbench?

brgds

 

De : ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] De la part de Somnath Roy
Envoyé : mardi 24 novembre 2015 20:49
À : ceph-users@xxxxxxxxxxxxxx
Objet : RGW pool contents

 

Hi Yehuda/RGW experts,

I have one cluster with RGW up and running in the customer site.

I did some heavy performance testing on that with CosBench and as a result written significant amount of data to showcase performance on that.

Over time, customer also wrote significant amount of data using S3 api into the cluster.

Now, I want to remove the buckets/objects created by CosBench and need some help on that.

I ran the following command to list the buckets.

 

radosgw-admin bucket list”

 

The output is the following snippet..

 

    "rgwdef42",

    "rgwdefghijklmnop79",

    "rgwyzabc43",

    "rgwdefgh43",

    "rgwdefghijklm200",

 

……………………..

……………………..

 

My understanding is , cosbench should create containers with “mycontainers_<n>”  and objects with format “myobjects_<n>” prefix (?). But, it’s not there in the output of the above command.

 

Next, I tried to list the contents of the different rgw pools..

 

rados -p .rgw.buckets.index ls

 

.dir.default.5407.17

.dir.default.6063.24

.dir.default.6068.23

.dir.default.6046.7

.dir.default.6065.44

.dir.default.5409.3

………..

………..

 

Nothing with rgw prefix…Shouldn’t the bucketindex objects having similar prefix with bucket names ?

 

 

Now, tried to get the actual objects…

rados -p .rgw.buckets ls

 

default.6662.5_myobjects57862

default.5193.18_myobjects6615

default.5410.5_myobjects68518

default.6661.8_myobjects7407

default.5410.22_myobjects54939

default.6651.6_myobjects23790

 

……………………….

………………………

 

So, looking at these, it seems cosbench run is creating the .dir.default.<n>* buckets and the default.<n>_myobjects<n>* objects (?)

 

But, these buckets are not listed by the first “radosgw-admin” command, why ?

 

Next, I listed the contents of the .rgw pool and here is the output..

 

rados -p .rgw ls

 

.bucket.meta.rgwdefghijklm78:default.6069.18

rgwdef42

rgwdefghijklmnop79

rgwyzabc43

.bucket.meta.rgwdefghijklmnopqr71:default.6655.3

rgwdefgh43

.bucket.meta.rgwdefghijklm119:default.6066.25

rgwdefghijklm200

.bucket.meta.rgwxghi2:default.5203.4

rgwxjk17

rgwdefghijklm196

 

……………….

……………….

 

It seems this pool has the buckets listed by the radosgw-admin command.

 

Can anybody explain what is .rgw pool supposed to contain ?

 

Also, what is the difference between .users.uid and .users pool ?

 

 

Appreciate any help on this.

 

Thanks & Regards

Somnath

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