* convert code to proper C++
* revert changes to "id.h" because #3765 has been merged.
* revert changes to Python bindings because they will be removed in #3541
* remove dependencies of Arrow logging
* revert changes to Arrow logging
* lint
* Refactor code about ray.ObjectID.
* remove from_random and use nil_id instead of constructor
* remove id() in hash
* Lint and fix
* Change driver id to ObjectID
* Replace binary_to_hex(ObjectID.id()) to ObjectID.hex()
* Convert UniqueID::nil() to a constructor
* Cleanup actor handle pickling code
* Add new actor handles to the task spec
* Pass in new actor handles
* Add new handles to the actor registration
* Regression test for actor handle forking and GC
* lint and doc
* Handle pickled actor handles in the backend and some refactoring
* Add regression test for dummy object GC and pickled actor handles
* Check for duplicate actor tasks on submission
* Regression test for forking twice, fix failed named actor leak
* Fix bug for forking twice
* lint
* Revert "Fix bug for forking twice"
This reverts commit 3da85e59d401e53606c2e37ffbebcc8653ff27ac.
* Add new actor handles when task is assigned, not finished
* Remove comment
* remove UniqueID()
* Updates
* update
* fix
* fix java
* fixes
* fix
1. Fix the problem of duplicated stored logs.
2. Save log whose level is higher than severity_threshold, not only with severity_threshold.
3. Fix a `log_dir` bug: storing logs in a wrong path.
* Push a warning to all users when large number of workers have been started.
* Add test.
* Fix bug.
* Give warning when worker starts instead of when worker registers.
* Fix
* Fix tests
Fix some code issues found by code scanning tool:
**1. Macro compares unsigned to 0(NO_EFFECT)**
CWE570: An unsigned value can never be less than 0
This greater-than-or-equal-to-zero comparison of an unsigned value is always true. "this->create_buffer_state_[object_id].num_seals_remaining >= 0UL".
~/ray/src/ray/object_manager/object_buffer_pool.cc: ray::ObjectBufferPool::SealChunk(const ray::UniqueID &, unsigned long)
**2. Inferred misuse of enum(MIXED_ENUMS)**
CWE398: An integer expression which was inferred to have an enum type is mixed with a different enum type
This case, "static_cast(ray::object_manager::protocol::MessageType::PushRequest)", implies the effective type of "message_type" is "ray::object_manager::protocol::MessageType".
~/ray/src/ray/object_manager/object_manager.cc: ray::ObjectManager::ProcessClientMessage(std::shared_ptr> &, long, const unsigned char *)
Object manager uses multi-threading for transferring objects between different nodes, the plasma client used in object_buffer_pool_ needs to be protected by lock. We have met crashes caused by missing lock in FreeObjects() interface, this PR fixes that issue.
1) if using `PyObject_GetIter`, the caller must call `Py_DECREF` to avoid memory leak. But with `PyList_GetItem`, `Py_DECREF` isn't needed.
2) the `Py_BuildValue` call in `wait` doesn't need to increment ref count.
Otherwise, in the event of a remote raylet crashing, the connection might be held by boost asio forever, and the pending callbacks will never get invoked. See also #3586.
* Add a flag for whether an object has been created before
* Add regression test
* doc
* Share object directory between object and node managers
* Treat evicted actor tasks as failed
* minor
* Check return value
* Fix bug where object locations weren't getting updated on client death
* Fix mac build
* Use RayTaskError
ray.wait depends on callbacks from the GCS to decide when an object has appeared in the cluster. The raylet crashes if a callback is received for a wait request that has already completed, but this actually can happen, depending on the order of calls. More precisely:
1. Objects A and B are put in the cluster.
2. Client calls ray.wait([A, B], num_returns=1).
3. Client subscribes to locations for A and B. Locations are cached for both, so callbacks are posted for each.
4. Callback for A fires. The wait completes and the request is removed.
5. Callback for B fires. The wait request no longer exists and raylet crashes.
* Broadcast actor death, clean up dummy objects
* Reduce logging and clean up state when failing a task
* lint
* Make actor failure test nicer, reduce node timeout
* Suppress duplicate pre-emptive object pushes.
* Add test.
* Fix linting
* Remove timer and inline recent_pushes_ into local_objects_.
* Improve test.
* Fix
* Fix linting
* Enable retrying pull from same object manager. Randomize object manager.
* Speed up test
* Linting
* Add test.
* Minor
* Lengthen pull timeout and reissue pull every time a new object becomes available.
* Increase pull timeout in test.
* Wait for nodes to start in object manager test.
* Wait longer for nodes to start up in test.
* Small fixes.
* _submit -> _remote
* Change assert to warning.
* Make scheduling queues RemoveTasks return task states as well.
* Add test
* Don't unsubscribe for infeasible tasks when spilling over.
* Linting
* Address comments.
