Hi Nick,
First thing to note is that in Kraken that object classes not whitelisted need to be enabled explicitly. This is in the Kraken release notes (http://docs.ceph.com/docs/master/release-notes/):
- The ‘osd class load list’ config option is a list of object class names that the OSD is permitted to load (or ‘*’ for all classes). By default it contains all existing in-tree classes for backwards compatibility.
- The ‘osd class default list’ config option is a list of object class names (or ‘*’ for all classes) that clients may invoke having only the ‘*’, ‘x’, ‘class-read’, or ‘class-write’ capabilities. By default it contains all existing in-tree classes for backwards compatibility. Invoking classes not listed in ‘osd class default list’ requires a capability naming the class (e.g. ‘allow class foo’).
On Wed, Feb 15, 2017 at 1:11 PM Nick Fisk <nick@xxxxxxxxxx> wrote:
Hi Noah,
I'm trying to follow your example where you can pass a LUA script as json
when calling the rados execute function in Python. However I'm getting a
rados permission denied error saying its failed to read the test object I
have placed on the pool.
I have also tried calling the cls_hello object class and this works, so I
believe its something to do with the LUA functionality that's causing it to
bomb out. This is running on Kraken.
Any ideas would be gratefully received.
Nick
Ie
print json.dumps(cmd)
ret, data = "" 'lua', 'eval_json', json.dumps(cmd))
Outputs
python radoslua.py --object-name=test --pool=rbd
{"handler": "upper", "script": "\n function upper(input, output)\n
input_str = input:str()\n upper_str = string.upper(input_str)\n
output:append(upper_str)\n end\n cls.register(upper)\n "}
Traceback (most recent call last):
File "radoslua.py", line 47, in <module>
ret, data = "" 'lua', 'eval_json', json.dumps(cmd))
File "rados.pyx", line 451, in rados.requires.wrapper.validate_func
(/tmp/buildd/ceph-11.2.0/obj-x86_64-linux-gnu/src/pybind/rados/pyrex/rados.c
:4439)
File "rados.pyx", line 2657, in rados.Ioctx.execute
(/tmp/buildd/ceph-11.2.0/obj-x86_64-linux-gnu/src/pybind/rados/pyrex/rados.c
:34056)
rados.PermissionError: Ioctx.read(rbd): failed to read test
First thing to note is that in Kraken that object classes not whitelisted need to be enabled explicitly. This is in the Kraken release notes (http://docs.ceph.com/docs/master/release-notes/):
tldr: add 'osd class load list = *' and 'osd class default list = *' to ceph.conf.
- The ‘osd class load list’ config option is a list of object class names that the OSD is permitted to load (or ‘*’ for all classes). By default it contains all existing in-tree classes for backwards compatibility.
- The ‘osd class default list’ config option is a list of object class names (or ‘*’ for all classes) that clients may invoke having only the ‘*’, ‘x’, ‘class-read’, or ‘class-write’ capabilities. By default it contains all existing in-tree classes for backwards compatibility. Invoking classes not listed in ‘osd class default list’ requires a capability naming the class (e.g. ‘allow class foo’).
I suspect that will resolve the issue.
If you've done that and it still doesn't work then the next thing I'd suggest is creating the target object before running the command. Operations on objects that don't exist sometimes seem non-intuitive to me.
Let me know if that doesn't work and we can look at debugging further.
Thanks,
- Noah
On Wed, Feb 15, 2017 at 1:11 PM Nick Fisk <nick@xxxxxxxxxx> wrote:
Hi Noah,
I'm trying to follow your example where you can pass a LUA script as json
when calling the rados execute function in Python. However I'm getting a
rados permission denied error saying its failed to read the test object I
have placed on the pool.
I have also tried calling the cls_hello object class and this works, so I
believe its something to do with the LUA functionality that's causing it to
bomb out. This is running on Kraken.
Any ideas would be gratefully received.
Nick
Ie
print json.dumps(cmd)
ret, data = "" 'lua', 'eval_json', json.dumps(cmd))
Outputs
python radoslua.py --object-name=test --pool=rbd
{"handler": "upper", "script": "\n function upper(input, output)\n
input_str = input:str()\n upper_str = string.upper(input_str)\n
output:append(upper_str)\n end\n cls.register(upper)\n "}
Traceback (most recent call last):
File "radoslua.py", line 47, in <module>
ret, data = "" 'lua', 'eval_json', json.dumps(cmd))
File "rados.pyx", line 451, in rados.requires.wrapper.validate_func
(/tmp/buildd/ceph-11.2.0/obj-x86_64-linux-gnu/src/pybind/rados/pyrex/rados.c
:4439)
File "rados.pyx", line 2657, in rados.Ioctx.execute
(/tmp/buildd/ceph-11.2.0/obj-x86_64-linux-gnu/src/pybind/rados/pyrex/rados.c
:34056)
rados.PermissionError: Ioctx.read(rbd): failed to read test
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