Reconstruction for evicted objects (#181)

* First pass at reconstruction in the worker

Modify reconstruction stress testing to start Plasma service before rest of Ray cluster

TODO about reconstructing ray.puts

Fix ray.put error for double creates

Distinguish between empty entry and no entry in object table

Fix test case

Fix Python test

Fix tests

* Only call reconstruct on objects we have not yet received

* Address review comments

* Fix reconstruction for Python3

* remove unused code

* Address Robert's comments, stress tests are crashing

* Test and update the task's scheduling state to suppress duplicate
reconstruction requests.

* Split result table into two lookups, one for task ID and the other as a
test-and-set for the task state

* Fix object table tests

* Fix redis module result_table_lookup test case

* Multinode reconstruction tests

* Fix python3 test case

* rename

* Use new start_redis

* Remove unused code

* lint

* indent

* Address Robert's comments

* Use start_redis from ray.services in state table tests

* Remove unnecessary memset
This commit is contained in:
Stephanie Wang
2017-02-01 19:18:46 -08:00
committed by Robert Nishihara
parent f69d4aaaa7
commit 241b539ff8
26 changed files with 670 additions and 184 deletions
+48 -24
View File
@@ -9,6 +9,7 @@ import sys
import time
import unittest
import redis
import ray.services
# Check if the redis-server binary is present.
redis_path = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../../core/src/common/thirdparty/redis/src/redis-server")
@@ -42,17 +43,11 @@ def integerToAsciiHex(num, numbytes):
class TestGlobalStateStore(unittest.TestCase):
def setUp(self):
redis_port = random.randint(2000, 50000)
self.redis_process = subprocess.Popen([redis_path,
"--port", str(redis_port),
"--loglevel", "warning",
"--loadmodule", module_path])
time.sleep(1.5)
redis_port = ray.services.start_redis()
self.redis = redis.StrictRedis(host="localhost", port=redis_port, db=0)
def tearDown(self):
self.redis_process.kill()
ray.services.cleanup()
def testInvalidObjectTableAdd(self):
# Check that Redis returns an error when RAY.OBJECT_TABLE_ADD is called with
@@ -81,7 +76,7 @@ class TestGlobalStateStore(unittest.TestCase):
# Try calling RAY.OBJECT_TABLE_LOOKUP with an object ID that has not been
# added yet.
response = self.redis.execute_command("RAY.OBJECT_TABLE_LOOKUP", "object_id1")
self.assertEqual(set(response), set([]))
self.assertEqual(response, None)
# Add some managers and try again.
self.redis.execute_command("RAY.OBJECT_TABLE_ADD", "object_id1", 1, "hash1", "manager_id1")
self.redis.execute_command("RAY.OBJECT_TABLE_ADD", "object_id1", 1, "hash1", "manager_id2")
@@ -109,7 +104,7 @@ class TestGlobalStateStore(unittest.TestCase):
# Try calling RAY.OBJECT_TABLE_LOOKUP with an object ID that has not been
# added yet.
response = self.redis.execute_command("RAY.OBJECT_TABLE_LOOKUP", "object_id1")
self.assertEqual(set(response), set([]))
self.assertEqual(response, None)
# Add some managers and try again.
self.redis.execute_command("RAY.OBJECT_TABLE_ADD", "object_id1", 1, "hash1", "manager_id1")
self.redis.execute_command("RAY.OBJECT_TABLE_ADD", "object_id1", 1, "hash1", "manager_id2")
@@ -131,7 +126,7 @@ class TestGlobalStateStore(unittest.TestCase):
self.redis.execute_command("RAY.OBJECT_TABLE_REMOVE", "object_id1", "manager_id2")
response = self.redis.execute_command("RAY.OBJECT_TABLE_LOOKUP", "object_id1")
self.assertEqual(set(response), set())
# Remove a manager from an empty set, and make sure we still have an empty set.
# Remove a manager from an empty set, and make sure we now have an empty set.
self.redis.execute_command("RAY.OBJECT_TABLE_REMOVE", "object_id1", "manager_id3")
response = self.redis.execute_command("RAY.OBJECT_TABLE_LOOKUP", "object_id1")
self.assertEqual(set(response), set())
@@ -173,24 +168,19 @@ class TestGlobalStateStore(unittest.TestCase):
self.redis.execute_command("RAY.OBJECT_TABLE_ADD", "object_id1", 1, "hash1", "manager_id1")
response = self.redis.execute_command("RAY.RESULT_TABLE_LOOKUP", "object_id1")
self.assertIsNone(response)
# Add the result to the result table. This is necessary, but not sufficient
# because the task is still not in the task table.
self.redis.execute_command("RAY.RESULT_TABLE_ADD", "object_id1", "task_id1")
# Add the result to the result table. The lookup now returns the task ID.
task_id = b"task_id1"
self.redis.execute_command("RAY.RESULT_TABLE_ADD", "object_id1", task_id)
response = self.redis.execute_command("RAY.RESULT_TABLE_LOOKUP", "object_id1")
self.assertIsNone(response)
# Add the task to the task table so that the result table lookup can
# succeed.
self.redis.execute_command("RAY.TASK_TABLE_ADD", "task_id1", 1, "local_scheduler_id1", "task_spec1")
response = self.redis.execute_command("RAY.RESULT_TABLE_LOOKUP", "object_id1")
self.assertEqual(response, [1, b"local_scheduler_id1", b"task_spec1"])
self.assertEqual(response, task_id)
# Doing it again should still work.
response = self.redis.execute_command("RAY.RESULT_TABLE_LOOKUP", "object_id1")
self.assertEqual(response, [1, b"local_scheduler_id1", b"task_spec1"])
self.assertEqual(response, task_id)
# Try another result table lookup. This should succeed.
self.redis.execute_command("RAY.TASK_TABLE_ADD", "task_id2", 2, "local_scheduler_id2", "task_spec2")
self.redis.execute_command("RAY.RESULT_TABLE_ADD", "object_id2", "task_id2")
task_id = b"task_id2"
self.redis.execute_command("RAY.RESULT_TABLE_ADD", "object_id2", task_id)
response = self.redis.execute_command("RAY.RESULT_TABLE_LOOKUP", "object_id2")
self.assertEqual(response, [2, b"local_scheduler_id2", b"task_spec2"])
self.assertEqual(response, task_id)
def testInvalidTaskTableAdd(self):
# Check that Redis returns an error when RAY.TASK_TABLE_ADD is called with
@@ -227,6 +217,40 @@ class TestGlobalStateStore(unittest.TestCase):
response = self.redis.execute_command("RAY.TASK_TABLE_GET", "task_id")
self.assertEqual(response, task_args)
# If the current value, test value, and set value are all the same, the
# update happens, and the response is still the same task.
task_args = [task_args[0]] + task_args
response = self.redis.execute_command("RAY.TASK_TABLE_TEST_AND_UPDATE",
"task_id",
*task_args[:3])
self.assertEqual(response, task_args[1:])
# Check that the task entry is still the same.
get_response = self.redis.execute_command("RAY.TASK_TABLE_GET", "task_id")
self.assertEqual(get_response, task_args[1:])
# If the current value is the same as the test value, and the set value is
# different, the update happens, and the response is the entire task.
task_args[1] += 1
response = self.redis.execute_command("RAY.TASK_TABLE_TEST_AND_UPDATE",
"task_id",
*task_args[:3])
self.assertEqual(response, task_args[1:])
# Check that the update happened.
get_response = self.redis.execute_command("RAY.TASK_TABLE_GET", "task_id")
self.assertEqual(get_response, task_args[1:])
# If the current value is no longer the same as the test value, the
# response is nil.
task_args[1] += 1
response = self.redis.execute_command("RAY.TASK_TABLE_TEST_AND_UPDATE",
"task_id",
*task_args[:3])
self.assertEqual(response, None)
# Check that the update did not happen.
get_response2 = self.redis.execute_command("RAY.TASK_TABLE_GET", "task_id")
self.assertEqual(get_response2, get_response)
self.assertNotEqual(get_response2, task_args[1:])
def testTaskTableSubscribe(self):
scheduling_state = 1
node_id = "node_id"