Summary:
Added a warning to the log. Every 3 seconds (let's not make that configurable). Can be turned off.
I still don't like this. We are raising another thread and reading a file to do monitoring. We're developing a DB, not a sys monitor. Serious admins do that themselves. But, here it is.
UPDATE:
Cleaned up `utils/sysinfo/memory`. Removed all unused functions. Removed the faulty memory check in `tests/concurrent`.
Reviewers: buda, mferencevic, mislav.bradac
Reviewed By: mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D819
Summary:
Setup scaffolding for building Memgraph tools.
Change `utils::Split` without delimiter to split on whitespace.
This should make `Split` behave just like Python's `str.split`, which is
more practical for splitting on word boundaries.
Add `utils::StartsWith` function.
Rewrite csv_to_snapshot to C++.
Reviewers: mferencevic
Reviewed By: mferencevic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D822
Summary:
Add function First to utils.
Insert EdgeType into Expand during planning.
Reviewers: florijan, mislav.bradac
Reviewed By: florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D769
Summary: `assert` function added. Useful to us for asserting DB state in harness tests. Potentially useful to the client for breaking out of a query as soon as a predicate fails, as opposed to collecting result and checking them client-side.
Reviewers: buda, mislav.bradac, teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D750
Summary: Because it was unnecessary and also implemented wrong (if someone tried using a Schduler with something other then std::mutex, it would not compile). We can trivially add this if it ever becomes necessary.
Reviewers: buda, mislav.bradac
Reviewed By: buda, mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D666
Summary: Changed on-scope-exit-mechanism from macro (with two auto-generated variables and an all-capturing lambda) to an explicitly created variable that takes an std::function argument.
Reviewers: buda, mislav.bradac, teon.banek
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D659
Summary: Not strictly neccessary, but it's been itching me. It took an hour.
Reviewers: buda, mislav.bradac
Reviewed By: mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D648
Summary:
- added only one function for getting the total (in + out) vertex degree, it's required for the Ravelin use-case
- specific `degree_in` and `degree_out` functions can be added as necessary
- also fixed random_graph_generator bug (needed it for testing)
Reviewers: buda, mislav.bradac
Reviewed By: buda, mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D652
Summary:
Add Filters class for storing additional info
Add FindOr to utils/algorithm.hpp
Use all collected labels when scanning by them
Collect label filters inside WHERE
Document the Filters class
Reviewers: florijan, mislav.bradac, buda
Reviewed By: florijan
Subscribers: pullbot, lion
Differential Revision: https://phabricator.memgraph.io/D515
Summary:
- added functionality to `GraphDbAccessor` for cardinality estimates
- changed all `GraphDbAccessor::Count...` functions to return `int64_t`
- added the need functionality into `LabelPropertyIndex`
- modified `SkipList::position_and_count` to accept a custom `equals` function. Equality could not be implemented using only the custom `less` because it compares a templated `TItem` with skiplist element type `T`, and is therefore not symetrical.
Reviewers: teon.banek, buda, mislav.bradac
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D521
Summary:
The new Bound class does not have comparison operators defined. The
reason being, we want to support having values which we may not want to
compare. For example, having an Expression which should first be
evaluated and then compared.
Reviewers: florijan, mislav.bradac, buda
Reviewed By: florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D520
Summary:
Since assertions should signify an abnormal program condition, it makes
sense for them to call `std::abort`. This way, we'll get a core dump
which can be inspected in a debugger.
Update utils/assert.hpp documentation
Reviewers: florijan, buda, mislav.bradac
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D475
Summary:
Remove utils/stacktrace/log.hpp
The single function defined in log.hpp is used only in
memgraph_bolt.cpp. Therefore, the function has been moved and the file
removed.
Move utils/stacktrace/stacktrace.hpp one level up
Move some logging from memgraph_bolt to Server
Reviewers: buda, dtomicevic
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D465
Summary:
The check is made more robust by using the `fail` accessor along with
`eof`.
Reviewers: florijan, buda, mislav.bradac, dgleich
Reviewed By: dgleich
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D376
Summary:
File buffer added
Implemented little more of snapshoter.
Resolved conflicts
More stuff implemented of snapshot durability.
More things in snapshoter.
Refactored, added comments
Merge branch 'dev' into durability_snapshot
Merge branch 'dev' into durability_snapshot
Resolved bug in scheduler, snapshoter is running in grpah_db.
Reviewers: mferencevic, buda, dgleich, mislav.bradac
Reviewed By: mferencevic, buda, dgleich, mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D232
Summary:
Merge utils/visitor directory into single file.
Rename Visitor to HierarchicalVisitor.
Add regular Visitor.
Split HierarchicalVisitor into LeafVisitor and CompositeVisitor.
Add more documentation on visitor pattern.
Make PostVisit and Visit return bool.
Reviewers: florijan, mislav.bradac, buda
Reviewed By: mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D364
Summary:
Bolt buffer is now a template.
Communication worker now has a new interface.
Fixed network tests to use new interface.
Fixed bolt tests to use new interface.
Added more functions to bolt decoder.
Reviewers: dgleich, buda
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D256
Summary:
Multiple attempts to delete a record dont crash anymore.
Deleting a vertex and its blocking edge in the same delete op now supported.
Utils::Assert - permanent_fail bug fix
Reviewers: teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D282
Summary:
Also, inherit `TypedValueException` from `BasicException` instead of
`StacktraceException`.
This is meant as a basic API change, so that catching query exceptions becomes
simpler. The error message can be obtained from `what` method, inherited from
`BasicException`. In the future, we may extend the `QueryException`. It could
take column/row position in query source, as well as other information. Then
provide (or override `what`) a method to format the error message nicely for
the user.
Reviewers: florijan, buda, mislav.bradac
Reviewed By: mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D267
Summary:
- Aggregation LogicalOperation added, with tests.
- Added capabilities to TypedValue (hash, bool-equality)
to support std::unordered_map<TypedValue>.
- Removed some bad code from utils/hashing/fnv and added
a hashing function for collections.
Reviewers: buda, mislav.bradac, teon.banek
Reviewed By: teon.banek
Subscribers: lion, pullbot
Differential Revision: https://phabricator.memgraph.io/D252
