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Fixes and cleanups for the multinode setting. (#143)

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* Add function for driver to get address info from Redis.

* Use Redis address instead of Redis port.

* Configure Redis to run in unprotected mode.

* Add method for starting Ray processes on non-head node.

* Pass in correct node ip address to start_plasma_manager.

* Script for starting Ray processes.

* Handle the case where an object already exists in the store. Maybe this should also compare the object hashes.

* Have driver get info from Redis when start_ray_local=False.

* Fix.

* Script for killing ray processes.

* Catch some errors when the main_loop in a worker throws an exception.

* Allow redirecting stdout and stderr to /dev/null.

* Wrap start_ray.py in a shell script.

* More helpful error messages.

* Fixes.

* Wait for redis server to start up before configuring it.

* Allow seeding of deterministic object ID generation.

* Small change.
This commit is contained in:
Robert Nishihara
2016-12-21 18:53:12 -08:00
committed by Philipp Moritz
parent c9c1b3e6af
commit 6cd02d71f8
14 changed files with 475 additions and 134 deletions
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src/common/state/redis.c
+11 -3
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@@ -160,11 +160,19 @@ db_handle *db_connect(const char *db_address,
"could not establish synchronous connection to redis "
"%s:%d",
db_address, db_port);
/* Enable keyspace events. */
reply = redisCommand(context, "CONFIG SET notify-keyspace-events AKE");
/* Configure Redis to generate keyspace notifications for list events. This
* should only need to be done once (by whoever started Redis), but since
* Redis may be started in multiple places (e.g., for testing or when starting
* processes by hand), it is easier to do it multiple times. */
reply = redisCommand(context, "CONFIG SET notify-keyspace-events Kl");
CHECKM(reply != NULL, "db_connect failed on CONFIG SET");
freeReplyObject(reply);
/* Add new client using optimistic locking. */
/* Also configure Redis to not run in protected mode, so clients on other
* hosts can connect to it. */
reply = redisCommand(context, "CONFIG SET protected-mode no");
CHECKM(reply != NULL, "db_connect failed on CONFIG SET");
freeReplyObject(reply);
/* Create a client ID for this client. */
db_client_id client = globally_unique_id();
/* Construct the argument arrays for RAY.CONNECT. */