The system HintsColumnFamily seems large in my cluster, and I want to track down why that is.  I try invoking “listEndpointsPendingHints()” for o.a.c.db.HintedHandoffManager and it never returns, and also freezes the node that its invoked against.  It’s a 3 node cluster, and all nodes have been up and running without issue for a while.  Any help on where to start with this?


               Column Family: HintsColumnFamily

                SSTable count: 11

                Space used (live): 11271669539

                Space used (total): 11271669539

                Number of Keys (estimate): 1408

                Memtable Columns Count: 338

                Memtable Data Size: 0

                Memtable Switch Count: 1

                Read Count: 3

                Read Latency: 4354.669 ms.

                Write Count: 848

                Write Latency: 0.029 ms.

                Pending Tasks: 0

                Bloom Filter False Postives: 0

                Bloom Filter False Ratio: 0.00000

                Bloom Filter Space Used: 12656

                Key cache capacity: 14

                Key cache size: 11

                Key cache hit rate: 0.6666666666666666

                Row cache: disabled

                Compacted row minimum size: 105779

                Compacted row maximum size: 7152383774

                Compacted row mean size: 590818614