Ted Yu created HBASE-13989:
------------------------------
Summary: Threshold for combined MemStore and BlockCache
percentages is not checked
Key: HBASE-13989
URL: https://issues.apache.org/jira/browse/HBASE-13989
Project: HBase
Issue Type: Bug
Reporter: Ted Yu
Assignee: Ted Yu
In HeapMemoryManager#doInit():
{code}
blockCachePercentMinRange = conf.getFloat(BLOCK_CACHE_SIZE_MIN_RANGE_KEY,
blockCachePercent);
blockCachePercentMaxRange = conf.getFloat(BLOCK_CACHE_SIZE_MAX_RANGE_KEY,
blockCachePercent);
...
if (blockCachePercent == blockCachePercentMinRange
&& blockCachePercent == blockCachePercentMaxRange) {
return false;
}
{code}
If memory tuning is not specified, blockCachePercentMinRange and
blockCachePercentMaxRange would carry the value of blockCachePercent.
This would make doInit() exit before checking the threshold for combined
MemStore and BlockCache percentages.
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