SPARK-466 - #155
Open
strogiyotec wants to merge 2 commits into
Open
Conversation
SPARK-466 add a setting to shuffle the partition list Otherwise it's sorted and later on ExecutorService will execute partitions against the same shard spark.mongodb.read.partitioner.options.shuffle - boolean , When true, shuffles the generated partitions so consecutive partitions are unlikely to belong to the same shard, spreading read load across shards. spark.mongodb.read.partitioner.options.shuffle.seed - long , The seed used when shuffling partitions. Set it to get a reproducible shuffle. Only takes effect when shuffle is true. An invalid (non-long) value raises a MongoSparkException.
|
Assigned |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
SPARK-466 add a setting to shuffle the partition list
Otherwise it's sorted and later on ExecutorService will execute partitions against the same shard
spark.mongodb.read.partitioner.options.shuffle - boolean , When true, shuffles the generated partitions so consecutive partitions are unlikely to belong to the same shard, spreading read load across shards.
spark.mongodb.read.partitioner.options.shuffle.seed - long , The seed used when shuffling partitions. Set it to get a reproducible shuffle. Only takes effect when shuffle is true. An invalid (non-long) value raises a MongoSparkException.