Use the new paginatior strcut for payments. Add some tests which will
specifically test cases on and around the missing index we force in our
test to ensure that we properly handle this case. We also add a sanity
check in the test that checks that we can query when we have no
payments.
With our new index of sequence number to index, it is possible for
more than one sequence number to point to the same hash because legacy
lnd allowed duplicate payments under the same hash. We now store these
payments in a nested bucket within the payments database. To allow
lookup of the correct payment from an index, we require matching of the
payment hash and sequence number.
We now use the same method of pagination for invoices and payments.
Rather than duplicate logic across calls, we add a pagnator struct
which can have query specific logic plugged into it. This commit also
addresses an existing issue where a reverse query for invoices with an
offset larger than our last offset would not return any invoices. We
update this behaviour to act more like c.Seek and just start from the
last entry. This behaviour change is covered by a unit test that
previously checked for the lack of invoices.
In our current invoice pagination logic, we would not return any
invoices if our offset index was more than 1 off our last index and we
were paginating backwards. This commit adds a test case for this
behaviour before fixing it in the next commit.
Add an entry to a payments index bucket which maps sequence number
to payment hash when we initiate payments. This allows for more
efficient paginated queries. We create the top level bucket in its
own migration so that we do not need to create it on the fly.
When we retry payments and provide them with a new sequence number, we
delete the index for their existing payment so that we do not have an
index that points to a non-existent payment.
If we delete a payment, we also delete its index entry. This prevents
us from looking up entries from indexes to payments that do not exist.
Update our current tests to include lookup of duplicate payments. We
do so in preparation for changing our lookup to be based on a new
payments index. We add an append duplicate function which will add a
duplicate payment with the minimum information required to successfully
read it from disk in tests.
This commit extends the etcd.BackendConfig to also provide an abort
context and integrates it with the STM retry loop in order to be able
stop LND when conflicting transactions keep the loop running.
This commit removes the retry goroutine from the STM as the retry loop
is only running when the STM transaction is encapsulated in Update/View
whereas for self-standing transactions we use a different approach.
By removing the goroutine we won't catch panics thrown that are supposed
to be catched outside of the STM.
Previously it wasn't possible to store a preimage in the invoice
database and signal that a payment should not be settled right away. The
only way to hold a payment was to insert the magic UnknownPreimage value
in the invoice database. This commit introduces a distinct flag to
signal that an invoice is a hold invoice and thereby allows the preimage
to be present in the database already.
Preparation for (key send) hodl invoices for which we already know the
preimage.
This line was incorrectly moved when the migtest package was created for
migration 12. This PR introduces a negative test for CreateTLB which
surfaced this.
This commit extends etcd db with namespaces without additional storage
space requirements. This is simply done by instead of using an all zero
root bucket id, we use the sha256 hash of the name space as our root
bucket id.
This commit separates all etcd related sources (sans a few stubs and
config) from the rest of the source tree and makes compilation conditional
depending on whether the kvdb_etcd build tag is specified.
This commit adds the ExtendedBackend interface which is an extension to
the walletdb.DB interface. This paves the way to using etcd.db.View and
etcd.db.Update in the global View and Update functions without much code
rewrite.
This commit reduces the compare set size the STM will submit in
transactions by adding only the bucket keys along the bucket path to a
specific lock set. This lock set then used to filter the read set,
effectively removing all read only keys from the transaction predicate
that are not bucket keys.
By tracking if a read-write tx actually changes something, we can also
"bump" the mod revision of the bucket keys.
With this trick we essentially implement a read-write lock for our
bucket structure greatly reducing transaction processing time.
This commit adds an extended STM, similar to what available in etcd's
clientv3 module. This incarnation of said STM supports additional
features, like positioning in key intervals while taking into account
deletes and writes as well. This is a preliminary work to support all
features of the kvdb interface.
The btcsuite/fastsha256 registers itself in the crypto package of
golang as a replacement for sha256. This causes problems in TLS1.3
connections that require the hash implementations to be serializable
and results in the "tls: internal error: failed to clone hash" error.
By removing all uses of the library we fix that error.
In this commit, we eliminate an extraneous copy in the `QueryPayments`
method. Before this commit, we would copy each payment from the initial
FetchPayments call into a new slice. However, pointers to payments are
return from `FetchPayments`, so we can just maintain that same reference
rather than copying again when we want to limit our response.
This commit reverts cb4cd49dc8d3b0255afe9ff29af9c46c2dbb2c98 to bring
back the insufficient local balance failure.
Distinguishing betweeen this failure and a regular "no route" failure
prevents meaningless htlcs from being sent out.
This commit removes ChanStatusDefault from the list of
orderedChanStatusFlags since it is not flag. As with the prior commit,
the logic around these flags assumes everything in the list is a flag,
but ChanStatusDefault is not.
It turns out we properly special case that if the channel is in
ChanStatusDefault that we only return ChanStatusDefault. However, if any
of the bits are set we would always report ChanStatusDefault since
status&0 == 0. This fixed simply by removing ChanStatusDefault from the
list since we only need the list to express non-default status flags.
This commit resovles a lingering issue w/in the codebase wrt how the
ChannelStatus flags are defined. Currently ChannelStatus is improperly
used to define a bit field and the individual flags themselves. As a
result, HasChanStatus accepts queries on particular status (combinations
of flags) and individual flags themselves.
This is an issue because the way HasChanStatus computes whether the
channel has a particular status assumes the provided inputs are all
flags (or at least combinations of flags).
However, ChanStatusDefault is simply the absence of any other flag.
Hence, HasChanStatus will always return true when querying for
ChanStatusDefault because status&0 == 0 is always true.
Longer term we should should consider splitting these definitions into
flags and particular states, and change the way construct or operate on
them, but for now I've just special-cased this one value. Fortunately,
we don't query HasChannelStatus w/ ChanStatusDefault anywhere in the
codebase so we dodge a bullet here, but it'd be nice to have some
greater assurances moving forward.
With mpp it isn't possible anymore for findPath to determine that there
isn't enough local bandwidth. The full payment amount isn't known at
that point.
In a follow-up, this payment outcome can be reintroduced on a higher
level (payment lifecycle).
