src/allmydata/__init__.py: ensure that if a dependency cannot be imported, we will report that rather than reporting a confusing message about the version and location being None. fixes #1804
docs/quickstart.rst: swap two paragraphs to make it more likely a user will report import and versioning errors from 'bin/tahoe --version' if there are any, before trying to run tests. Also, change 'python setup.py test' to 'python setup.py trial' to avoid a rebuild that might change the dependencies (if setuptools decides to throw a spanner in the works).
Failing to load a crawler state pickle uses default values, but the exception clause to detect this failure is too narrow; it can also fail with EOFError or KeyError for example.
Brian Warner [Sun, 24 Jun 2012 19:10:24 +0000 (12:10 -0700)]
_auto_deps: bump foolscap to >=0.6.3 to tolerate twisted-12.0.0
The current Twisted release is 12.1.0, which (like 12.0.0 before it)
isn't compatible with foolscap-0.6.2 and earlier. We previously required
foolscap>=0.6.1, since that's all we actually need from foolscap itself.
_auto_deps specifies twisted>=11.0.0, so any system that can't meet that
will install the current Twisted (12.1.0), which will give them
something incompatible with foolscap-0.6.1 and 0.6.2 .
If we're limited to setuptools's declarative constraint language (and
can't have a function which evaluates the available dependency versions
and gives recommendations on which to change), then the only safe
approach is to make sure that any acceptable Foolscap version will be
compatible with all acceptable Twisted versions. So, bump the foolscap
dependency to >=0.6.3, which covers all currently-known
incompatibilities.
david-sarah [Sat, 23 Jun 2012 23:23:19 +0000 (23:23 +0000)]
Makefile: Add 'check-rst' target to check .rst files for errors. Also add 'doc-checks' which at the moment just runs check-rst, but might do more in future. fixes #1780
david-sarah [Sun, 17 Jun 2012 00:21:25 +0000 (00:21 +0000)]
_auto_deps.py: bump the Twisted dependency to >= 11.0.0 to avoid Twisted bugs #411 (Deferred recursion limit) and #4395 (SSH server rekeying). refs #1297 fixes #1771
david-sarah [Thu, 21 Jun 2012 20:46:27 +0000 (20:46 +0000)]
Tests for ref #1669. Also refactor the existing tests to reduce duplicated code and to fix a cut-and-paste error that caused one case (successful SDMF repair) to go untested.
david-sarah [Tue, 19 Jun 2012 02:05:04 +0000 (02:05 +0000)]
Add assertions to make sure that set_default_encoding_parameters is always called, rather than using hardcoded 3/7/10 defaults. Also update affected tests. Note that this by itself cannot fix the bug mentioned in ticket:1212#comment:41, but it might make it easier to reproduce. refs #1212
david-sarah [Mon, 18 Jun 2012 00:24:54 +0000 (00:24 +0000)]
docs/frontends/FTP-and-SFTP.rst: listing of directories containing mutable files (but not reading/writing mutable files) is fixed for FTP. Also remove the orphaned trac link to #1688. refs #680
david-sarah [Sat, 16 Jun 2012 18:18:44 +0000 (18:18 +0000)]
Make the intent of the loop over servers in test_system.Connections.test_rref clearer, and able to be the same in 1.9.2 and trunk. Remove the now-unused node_key_s attribute of Client. refs #1636
david-sarah [Fri, 15 Jun 2012 03:44:37 +0000 (03:44 +0000)]
Fix a bug in mutable publish that could cause an IndexError when a writer is removed in Publish._connection_problem. This version uses DictOfSets as suggested by warner. fixes #1749
david-sarah [Fri, 15 Jun 2012 23:20:28 +0000 (23:20 +0000)]
Skip allmydata.test.test_system.Connections.test_rref unless we have foolscap >= 0.6.4, because of http://foolscap.lothar.com/trac/ticket/196 . refs #1636
david-sarah [Fri, 15 Jun 2012 01:48:55 +0000 (01:48 +0000)]
After a server disconnects, make the IServer retain the dead RemoteReference, and continue to return it to anyone who calls get_rref(). This removes the need for callers to guard against receiving a None (as long as the server was connected at least once, which is always the case for servers returned by get_servers_for_psi(), which is how all upload/download code gets servers). Includes test. fixes #1636
david-sarah [Thu, 14 Jun 2012 21:33:15 +0000 (21:33 +0000)]
Since DeprecationWarning about twisted.internet.interfaces.IFinishableConsumer is suppressed globally, it doesn't need to be suppressed during import. refs #1295
david-sarah [Thu, 14 Jun 2012 21:23:08 +0000 (21:23 +0000)]
Suppress DeprecationWarning about twisted.internet.interfaces.IFinishableConsumer. This also unifies the handling of DeprecationWarnings that need to be suppressed globally. refs #1295
Brian Warner [Thu, 14 Jun 2012 19:17:55 +0000 (12:17 -0700)]
test/common.py: fix race condition waiting for the helper connection
The wait_for_connections() method, which is used at the start of
test_system to make sure that all the clients are connected to all the
servers, did not also wait for clients to be connected to their Helpers.
Every once in a while, the helper connection would take a bit longer,
and then
test_system.SystemTest.test_filesystem._test_web._got_welcome_helper
would fail, because we'd check for a helper connection before it was
ready.
The fix is to modify wait_for_connections's polling predicate to look
for helper connections (if configured) as well as the regular
introducer- and server- connections.
Tested by temporarily adding a large (30s) delay to the connectTo() call
in Uploader.startService, simulating a long helper
connection-establishment delay. This makes the test fail consistently.
Then I fixed wait_for_connections(), and the test passed (slowly). Then
I removed the delay.
Brian Warner [Tue, 12 Jun 2012 21:37:27 +0000 (14:37 -0700)]
introweb: the Subscribed Clients list shows tubids, not serverids
Improve the column headers to make it clear that this list shows Tub
IDs. (we can't show pubkey-based serverids because clients don't give
those to us: only servers provide pubkeys). This should be the only
place in the whole webapi that shows TubIDs for modern (V2-introducer)
nodes.
Brian Warner [Tue, 12 Jun 2012 21:01:24 +0000 (14:01 -0700)]
Display serverids consistently as 8-char pubkey, or 6-char tubid.
This makes it easy to distinguish between old V1-Introducer
nodes (identified by their Foolscap TubID) and new V2 nodes (identified
by their ed25519 pubkey).
This fixes a few places where we used to display a tubid even if we had
a pubkey, making it hard to visually correlate servers in two different
displays. It also cleans up the way we pass serverids to the JS-based
download timeline.
The "introweb" subscribed-clients list still shows tubids.
Brian Warner [Tue, 12 Jun 2012 01:22:35 +0000 (18:22 -0700)]
test_system.py: clean up control flow, reduce use of stall()
The _upload_resumable() test interrupts a Helper upload partway
through (by shutting down the Helper), then restarts the Helper and
resumes the upload. The control flow is kind of tricky: to do anything
"partway through" requires adding a hook to the Uploadable. The previous
flow depended upon a (fragile) call to self.stall(), which waits a fixed
number of seconds.
This removes one of those stall() calls (the remainder is in
test/common.py and I'll try removing it in a subsequent revision). It
also removes some now-redundant wait_for_connections() calls, since
bounce_client() doesn't fire its Deferred until the client has finished
coming back up (and uses wait_for_connections() internally to do so).
Brian Warner [Tue, 12 Jun 2012 01:16:02 +0000 (18:16 -0700)]
offloaded.py: don't drop the Deferred
There was one corner case (where the client disconnects at just the
wrong time) that could have dropped a Deferred, leading to an Unhandled
Error. Clean up the control flow to avoid this case.
Brian Warner [Mon, 11 Jun 2012 01:14:55 +0000 (18:14 -0700)]
client.py: rename "server key" to "node key", use old name if present
This prepares for invitation-based reciprocal-permission Accounting. In
the scheme I'm developing, nodes publish "I accept shares from Y"
messages, which are assembled into a graph, and server will accept
shares from any client node reachable in this graph. For this to work,
the serverX->clientY edge must be connectable to the serverY->clientZ
edge, which means "clientY" and "serverY" must be connected. If clientY
and serverY are two distinct keys, they must be cross-signed. Life is
easier if there's just one key "Y", rather than distinct client- and
server- keys. Calling this one key "server.privkey" would be confusing.
"node.privkey" and "node.pubkey" makes more sense.
One-server-per-node is a pretty easy restriction. Originally I was
thinking that the client.key should be provided in each webapi call,
just like a filecap is, making a single node useable by multiple users
(Accounting principals), and not providing any ambient storage
authority. But I've been unable to think of a comfortable WUI for
that (at least without requiring javascript), nor a friendly way to
transfer account authority (e.g. writecaps that include storage
authority). So I'm more willing to have one-client-per-node these days.
(and note that this rename doesn't seriously preclude
many-clients-per-node or zero-clients-per-node anyways, it just makes
one-client-per-node less awkward)
Brian Warner [Fri, 25 May 2012 19:58:28 +0000 (12:58 -0700)]
CheckResults corrupt/incompatible shares now return IServers
DeepResultsBase also has a get_corrupt_shares(), and it is populated
from CheckResults.get_corrupt_shares(). It has been updated too, along
with get_remaining_corrupt_shares().
Remove temporary get_new_corrupt_shares() and
get_new_incompatible_shares().
Brian Warner [Fri, 25 May 2012 19:56:03 +0000 (12:56 -0700)]
CheckResults: pass IServer to sharemap=, but get_sharemap() returns serverids
This changes all code which feeds CheckResults(sharemap=) to provide
IServer instances, but CheckResults converts these to old-style
serverids during output, so downstream code doesn't have to change yet.
It adds a temporary get_new_sharemap(), which *does* return IServer
instances, so the immutable repairer can build new CheckResults from an
old one. This will go away when get_sharemap() is updated to return
IServer (and downstream code is updated too).
Brian Warner [Fri, 25 May 2012 07:13:23 +0000 (00:13 -0700)]
change CheckResults to use a fat set_data()
i.e. change set_data() to accept lots of parameters, instead of taking
a single dictionary with lots of keys. Also Convert all CheckResults
creators to use it.
Brian Warner [Tue, 15 May 2012 04:57:43 +0000 (21:57 -0700)]
CheckResults: start hiding .data, first step to clean it up
The goal is to make CheckResults more strongly typed, and remove the
ambiguous ".data" field in favor of a bunch of specific counters and
sharelists, so I can changes .sharemap and .servermap to use IServer
instances instead of string serverids. By cleaning this up first, I hope
to get that task done with less debugging.
david-sarah [Thu, 31 May 2012 22:00:00 +0000 (22:00 +0000)]
Change 'setup.py test' and 'setup.py trial' to pass --rterrors to trial by default. Suppress using --no-rterrors. Also pass --until-failure/-u to trial. fixes #1699
Brian Warner [Tue, 22 May 2012 22:18:26 +0000 (15:18 -0700)]
test_web.py: fix memory leak when run with --until-failure
The Fake*Node classes in test/common.py were accumulating share data in
a class-level dictionary, which persisted from one test run to the next.
As a result, running test_web.py over and over (with trial's
--until-failure feature) made this dictionary grow without bound,
eventually running out of memory.
This fix moves that dictionary into the FakeClient built fresh for each
test, so it doesn't build up. It does the same thing for "file_types",
which was much smaller but still lived at the class level.
Brian Warner [Tue, 22 May 2012 04:18:25 +0000 (21:18 -0700)]
UploadResults: store IServers internally, but still return serverids
This stores IDisplayableServer-providing instances (StubServers or
NativeStorageServers) in the .servermap and .sharemap dictionaries. But
get_servermap()/get_sharemap() still return data structures with
serverids, not IServers, by translating their data on the way out. This
lets us put off changing the callers for a little bit longer.
Brian Warner [Tue, 22 May 2012 04:17:27 +0000 (21:17 -0700)]
split IDisplayableServer from IServer, add sb.get_stub_server()
IDisplayableServer includes just enough functionality to call
.get_name() and friends, which is all that the UploadResults really
need. IServer is a superset that includes actual share-manipulation
methods. StubServer instances provide only IDisplayableServer, while
actual NativeStorageServer instances provide the full IServer interface.
When the Helper sends a serverid (so we know what to call the server but
nothing else about it, and have no corresponding NativeStorageServer
object to reference), but we want to store an IDisplayableServer in the
UploadResults, we create a synthetic StubServer "server" and store that
instead.
Brian Warner [Tue, 22 May 2012 04:14:44 +0000 (21:14 -0700)]
switch UploadResults to use get_uri(), hide internal ._uri
Complete the getter-based transformation, by hiding ".uri" and updating
callers to use get_uri(). Also don't set a dummy self._uri, leave it
undefined until someone calls set_uri().
Brian Warner [Tue, 22 May 2012 04:14:28 +0000 (21:14 -0700)]
switch UploadResults to use getters, hide internal data, for all but .uri
This hides attributes with e.g. _sharemap, and creates getters like
get_sharemap() to access them, for every field except .uri . This will
make it easier to modify the internal representation of .sharemap
without requiring callers to adjust quite yet.
".uri" has so many users that it seemed better to update it in a
subsequent patch.
Brian Warner [Tue, 22 May 2012 04:14:14 +0000 (21:14 -0700)]
convert UploadResults to a fat init
Populate most of UploadResults (except .uri, which is learned later when
using a Helper) in the constructor, instead of allowing creators to
write to attributes later. This will help isolate the fields that we
want to change to use IServers.
Brian Warner [Tue, 22 May 2012 04:14:00 +0000 (21:14 -0700)]
add HelperUploadResults
This splits the pb.Copyable on-wire object (HelperUploadResults) out
from the local results object (UploadResults). To maintain compatibility
with older Helpers, we have to leave pb.Copyable classes alone and
unmodified, but we want to change UploadResults to use IServers instead
of serverids. So by using a different class on the wire, and translating
to/from it on either end, we can accomplish both.
This measured how long the Helper took to do a filecheck before asking
for ciphertext. The "Contacting Helper" report includes both
existence_check and the client-helper RTT.
For non-overlapping uploads, it was being returned correctly. But when
multiple upload requests overlapped, and the file was not already in the
grid, the filecheck would only run once, and its existence_check time
would be reported for all uploaders (even if they didn't have to wait
for that time). Cleaning that up proved too difficult: the only correct
place to report this time is from the initial remote_upload_chk() call,
but the return value of that is too constrained to accomodate it in the
needs-upload case.
So I'm removing it altogether. Eventually I plan to add a proper
events/times field and record more data, including this check, in a form
that can be drawn on a nice zoomable timeline view.
Old clients talking to a new Helper (which doesn't supply the value)
will tolerate the loss (they'll just display an empty field on the web
view).