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