Activate partitioned index filters.

Reduce number of open files.

storage/rocks/rocksdb_store.go

@@ -89,7 +89,7 @@ func NewRocksDBStoreOpts(opts *Options) (*RocksDBStore, error) {
 	globalOpts := rocksdb.NewDefaultOptions()
 	globalOpts.SetCreateIfMissing(true)
 	globalOpts.SetCreateIfMissingColumnFamilies(true)
-	//globalOpts.SetMaxOpenFiles()
+	globalOpts.SetMaxOpenFiles(100)
 	globalOpts.SetEnv(env)
 	// We build a LRU cache with a high pool ratio of 0.4 (40%). The lower pool
 	// will cache data blocks and the higher will cache index and filters.
@@ -152,7 +152,7 @@ func getHyperCacheTableOpts(blockCache *rocksdb.Cache) *rocksdb.Options {
 	// touched on every operation.
 
 	bbto := rocksdb.NewDefaultBlockBasedTableOptions()
-	bbto.SetFilterPolicy(rocksdb.NewBloomFilterPolicy(10))
+	bbto.SetFilterPolicy(rocksdb.NewFullBloomFilterPolicy(10))
 	// In order to have a fine-grained control over the memory usage
 	// we cache SST's index and filters in the block cache. The alternative
 	// would be to leave RocksDB keep those files memory mapped, but
@@ -163,6 +163,9 @@ func getHyperCacheTableOpts(blockCache *rocksdb.Cache) *rocksdb.Options {
 	// those from L0 and move them to the high priority pool.
 	bbto.SetPinL0FilterAndIndexBlocksInCache(true)
 	bbto.SetCacheIndexAndFilterBlocksWithHighPriority(true)
+	bbto.SetPinTopLevelIndexAndFilterInCache(true)
+	bbto.SetPartitionFilters(true)
+	bbto.SetIndexType(rocksdb.KTwoLevelIndexSearchIndexType)
 	bbto.SetBlockCache(blockCache)
 	// increase block size to 16KB
 	bbto.SetBlockSize(16 * 1024)