Bug: _HandleTie not handled on close

[jamoore]

2012-07-13 10:02:57,659 ERROR [                      omero.cmd.SessionI] (2-thread-3) Unknown servant type: omero.cmd._HandleTie@1222a7e1

Actions:

• Make sure all clients call close on the handle and/or the callback ... waiting on Carlos' commit.
• Make sure close doesn't throw a Cancel exception (done/f8ac9ae)
• Make sure _HandleTie is a known servant type (done/13f4da9)
• Possibly count the number of instances server-side and throw an exception (OverUsageException). The value can be configurable, but perhaps start at 10K per user. (done/6acb676)

[jmoore]

Note: Carlos also had an issue with Handle services not being closed from omero.gateway.BlitzGateway.deleteObjects etc. We may need to detect too many of these server-side and throw an exception.

[jmoore]

Also, handle.close() throws Cancel!:

    h.close()
  File "/Users/moore/GlencoeSoftware.git/git/omero.git/dist/lib/python/omero_cmd_API_ice.py", line 524, in close
    return _M_omero.cmd.Handle._op_close.invoke(self, ((), _ctx))
Ice.UnknownException: exception ::Ice::UnknownException
{
    unknown = omero.cmd.HandleI$Cancel: cancel-called
	at omero.cmd.Helper.cancel(Helper.java:295)
	at omero.cmd.Helper.cancel(Helper.java:269)
	at omero.cmd.HandleI.cancel(HandleI.java:235)
	at omero.cmd.HandleI.closeWithoutNotification(HandleI.java:326)
	at omero.cmd.HandleI.close(HandleI.java:314)
	at omero.cmd._HandleTie.close(_HandleTie.java:76)

[jmoore]

Pushing commits to my 9348-close-handle branch.

[jmoore <josh@…>]

(In [6acb676a5dd3fc7f2a1477672d6550c9347ecae7/ome.git] on branch develop) Limit number of servants per session (See #9348)

Default count is 10K servants per session set in
etc/omero.properties. An OverUsageException? is
thrown if all clients accessing the same session
exceed this count.

[jmoore <josh@…>]

(In [f8ac9aea54ea4557a0632a4f93f44f4be35a566f/ome.git] on branch develop) Catch Cancel exception on cancel (See #9348)

[jmoore <josh@…>]

(In [13f4da958bd6fb591586a51e5855a0277d80aac1/ome.git] on branch develop) Don't double wrap with _HandleTie (See #9348)

[Carlos Neves <carlos@…>]

(In [35c340b2abb650b019ad61b0c329b66b6ad6c8fe/ome.git] on branch develop) closing handles (see #9348)

[Josh Moore <josh@…>]

(In [5e828c0514fa2a1b521aa774e70139c12b8991c2/ome.git] on branch develop) Merge pull request #16 from cneves/9348-close-handle

closing handles (see #9348)

[jmoore <josh@…>]

(In [77b7cfb12b55d12a8badbb6d8a86cf8d4df00d72/ome.git] on branch develop) Add try/finally to all deleteObjects calls (See #9348)

[jmoore]

Merged into develop.