Summary:
Wal on workers didn't contain committed transactions ids, this is needed for
distributed recovery so that the master may decide which transactions are
present on all the workers.
Reviewers: buda, msantl
Reviewed By: buda
Subscribers: pullbot, msantl, buda
Differential Revision: https://phabricator.memgraph.io/D1440
Summary: Make synchronized snapshot. This invokese the snapshooter on workers on the master snapshot scheduler interval.
Reviewers: msantl, mtomic
Reviewed By: msantl
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1334
Summary:
When commiting/aborting a transaction in tx master engine, make a two
phase commit to all workers so they can stop all futures and clear
transactional cache.
Reviewers: dgleich, florijan
Reviewed By: dgleich
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1320
Summary:
Remove "produce_" and "Produce" as prefix from all distributed stuff.
It's not removed in src/query/ stuff (operators).
Reviewers: dgleich
Reviewed By: dgleich
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1315
Summary:
- The expansion vertex gets created on the origin's worker
- The edge automatically gets created wherever necessary
- Vertex creation logic reuse
- End to end test
Reviewers: teon.banek, msantl
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1227
Summary:
- Add the said test
- Add `workerid` function
- Add random wait (enabled with flag) to `rpc::Client::Call` for network
latency simulation
Reviewers: buda, mferencevic, teon.banek
Reviewed By: buda, teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1222
Summary:
This may improve the query execution workload, because the Expand will
yield local results while it waits for remote ones. Note that we rely on
the fact that walking the graph produces results without any predetermined
order. Therefore, we can yield paths as we see fit. Enforcing the order
is done through OrderBy operator, and this change shouldn't affect that.
Reviewers: florijan, msantl, buda
Reviewed By: florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1215
Summary:
Implementation of remote vertex and edge creation. This diff addresses
the creation API (`GraphDbAccessor::InsertEdge`,
`GraphDbAccessor::InsertRemoteVertex`) and the necessary RPC and
`RemoteCache` stuff.
What is missing for full remote creation support are
`query::plan::operator` changes that are expected to minor. Pushing this
diff as it's large enough, operator and end to end tests in the next.
Also, the naming of existing structures and files is confusing (update
refering to both updates and created, `results` used too often etc.). I
will address this too, but feel free to comment on bad naming.
Reviewers: dgleich, teon.banek, msantl
Reviewed By: dgleich
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1210
Summary:
We have been using `Edges::VertexAddress` and `Edges::EdgeAddress` a lot
in other parts of the codebase because it's cleaner to write then
`Address<mvcc::VersionList<Edge>>`, especially in code what should not
really be MVCC-aware. However, a lot of that code should not really be
`Edges` aware either, as that's a storage datastructure that should not
be exposed.
This became annoying, so I extracted these addresses into a type-file. I
don't really like this approach, it might be better to have
`Vertex::Address` and `Edge::Address`, but that means we'd have to
import those headers and we'd get circular dependencies.
“The horror! The horror!”
- Joseph Conrad, Heart of Darkness
Reviewers: teon.banek, buda
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1204
Summary:
Updates are supported, insertions and removals not in this diff. The
test is a bit overdesigned, it happens.
Reviewers: teon.banek, dgleich, msantl
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1176
Summary:
Defined a new test based on reported bug, for multiple remote expansion.
Fixed the bug. Introduced minor refactors in distributed unit testing.
Reviewers: mculinovic, dgleich
Reviewed By: mculinovic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D1173
Summary:
This diff consolidates local and remote update handling. It ensures and
tests that updates for remote elements are visible locally (on the
updating worker).
The next part will be accumulating remote updates and applying them on
the owner.
Also extracted a common testing fixture.
Reviewers: dgleich, buda, mtomic
Reviewed By: mtomic
Subscribers: mtomic, pullbot
Differential Revision: https://phabricator.memgraph.io/D1169
