Denis Magda created IGNITE-3372:
-----------------------------------
Summary: IgniteDataStreamer: pre-loading starvation if multiple
streamers preload the same cache
Key: IGNITE-3372
URL: https://issues.apache.org/jira/browse/IGNITE-3372
Project: Ignite
Issue Type: Bug
Reporter: Denis Magda
Assignee: Denis Magda
Priority: Critical
If to start preloading a cache from multiple streamers on a node that owns
partitions that are being preloaded then we will get performance degradation at
some point in cases if:
- BinaryMarshaller is used;
- an entry key is a custom object for which we store data in metadata cache.
The main reason according to the thread dumps attached is a race-condition
around
{{org.apache.ignite.internal.processors.cache.GridCacheMapEntry.obsolete(GridCacheMapEntry.java:2888)}}
To improve the performance both {{GridDhtPartitionTopologyImpl.onRemove}} and
{{GridDhtPartitionTopologyImpl.onAdded}} must reuse a partition number that is
hold in entry.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
