Dan Smith created GEODE-716:
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Summary: Race in AttributesMutator.setCacheLoader on partitioned
regions can result in buckets without a loaded
Key: GEODE-716
URL: https://issues.apache.org/jira/browse/GEODE-716
Project: Geode
Issue Type: Bug
Reporter: Dan Smith
AttributesMutator.setCacheLoader ends up invoking this code in
PartitionedRegionDataStore.cacheLoaderChanged.
{code}
visitBuckets(new BucketVisitor() {
@Override
public void visit(Integer bucketId, Region r) {
AttributesMutator mut = r.getAttributesMutator();
if (logger.isDebugEnabled()) {
logger.debug("setting new cache loader in bucket region: {}",
newLoader);
}
mut.setCacheLoader(newLoader);
}
});
{code}
However, that can miss buckets that are currently being created, because they
read the existing value for cache loader first, and then later are added to
localBucket2RegionMap - see PartitionedRegionDataStore.grabFreeBuckets.
The net result is that some buckets can end up with null for the cache loader.
If gets a routed to those buckets, they will not invoke the cache loader.
On fix might be to get the PartitionedRegionDataStore.bucketCreationLock in
cacheLoaderChanged.
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