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From "J. Ryan Earl (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-6179) "Load" calculated in "nodetool info" is strange/inaccurate in JBOD setups
Date Mon, 21 Oct 2013 15:31:45 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800731#comment-13800731
] 

J. Ryan Earl edited comment on CASSANDRA-6179 at 10/21/13 3:31 PM:
-------------------------------------------------------------------

'nodetool cfstats' below:

{noformat}
[jre@cassandra5 ~]$ nodetool cfstats
Keyspace: system_traces
	Read Count: 16
	Read Latency: 1.5970625 ms.
	Write Count: 5171
	Write Latency: 0.06117172693869658 ms.
	Pending Tasks: 0
		Table: sessions
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 455
		Memtable data size, bytes: 255170
		Memtable switch count: 0
		Read count: 8
		Read latency, micros: 0.179 ms.
		Write count: 158
		Write latency, micros: 0.041 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: events
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 20000
		Memtable data size, bytes: 1048576
		Memtable switch count: 0
		Read count: 8
		Read latency, micros: 3.016 ms.
		Write count: 5013
		Write latency, micros: 0.062 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

----------------
Keyspace: VcellsPolishedData
	Read Count: 0
	Read Latency: NaN ms.
	Write Count: 0
	Write Latency: NaN ms.
	Pending Tasks: 0
		Table: vcells_polished_data
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

----------------
Keyspace: system
	Read Count: 502538
	Read Latency: 0.337618096541953 ms.
	Write Count: 1063
	Write Latency: 0.19078080903104422 ms.
	Pending Tasks: 0
		Table: NodeIdInfo
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: batchlog
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: hints
		SSTable count: 1
		Space used (live), bytes: 37070
		Space used (total), bytes: 37766
		SSTable Compression Ratio: 0.34898362817272827
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 1
		Read count: 8
		Read latency, micros: 0.199 ms.
		Write count: 64
		Write latency, micros: 0.064 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 336
		Compacted partition minimum size, bytes: 88149
		Compacted partition maximum size, bytes: 105778
		Compacted partition mean size, bytes: 105778

		Table: schema_columns
		SSTable count: 2
		Space used (live), bytes: 26224
		Space used (total), bytes: 33885
		SSTable Compression Ratio: 0.20573152682760049
		Number of keys (estimate): 256
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 37
		Read count: 221301
		Read latency, micros: 0.347 ms.
		Write count: 139
		Write latency, micros: 0.288 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1320
		Compacted partition minimum size, bytes: 1332
		Compacted partition maximum size, bytes: 29521
		Compacted partition mean size, bytes: 4895

		Table: peer_events
		SSTable count: 1
		Space used (live), bytes: 5828
		Space used (total), bytes: 5828
		SSTable Compression Ratio: 0.3692434210526316
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 1
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 37
		Write latency, micros: 0.271 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 16
		Compacted partition minimum size, bytes: 643
		Compacted partition maximum size, bytes: 1109
		Compacted partition mean size, bytes: 935

		Table: paxos
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: schema_keyspaces
		SSTable count: 2
		Space used (live), bytes: 12311
		Space used (total), bytes: 15857
		SSTable Compression Ratio: 0.33088662790697676
		Number of keys (estimate): 256
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 18
		Read count: 2
		Read latency, micros: 0.529 ms.
		Write count: 91
		Write latency, micros: 0.051 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1320
		Compacted partition minimum size, bytes: 150
		Compacted partition maximum size, bytes: 215
		Compacted partition mean size, bytes: 213

		Table: peers
		SSTable count: 2
		Space used (live), bytes: 36210
		Space used (total), bytes: 37570
		SSTable Compression Ratio: 0.39710715688810955
		Number of keys (estimate): 256
		Memtable cell count: 52
		Memtable data size, bytes: 12737
		Memtable switch count: 14
		Read count: 6
		Read latency, micros: 3.320 ms.
		Write count: 269
		Write latency, micros: 0.103 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1320
		Compacted partition minimum size, bytes: 73
		Compacted partition maximum size, bytes: 14237
		Compacted partition mean size, bytes: 7161

		Table: schema_triggers
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 1997
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 11
		Read count: 130
		Read latency, micros: 0.101 ms.
		Write count: 36
		Write latency, micros: 0.068 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: range_xfers
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: compactions_in_progress
		SSTable count: 2
		Space used (live), bytes: 10927
		Space used (total), bytes: 44335
		SSTable Compression Ratio: 0.9089015151515152
		Number of keys (estimate): 256
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 220
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 220
		Write latency, micros: 0.262 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1312
		Compacted partition minimum size, bytes: 30
		Compacted partition maximum size, bytes: 310
		Compacted partition mean size, bytes: 104

		Table: local
		SSTable count: 1
		Space used (live), bytes: 11687
		Space used (total), bytes: 14758
		SSTable Compression Ratio: 0.46092184368737477
		Number of keys (estimate): 128
		Memtable cell count: 8
		Memtable data size, bytes: 520
		Memtable switch count: 28
		Read count: 43
		Read latency, micros: 5.012 ms.
		Write count: 63
		Write latency, micros: 0.300 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1296
		Compacted partition minimum size, bytes: 11865
		Compacted partition maximum size, bytes: 14237
		Compacted partition mean size, bytes: 14237

		Table: schema_columnfamilies
		SSTable count: 1
		Space used (live), bytes: 17411
		Space used (total), bytes: 26387
		SSTable Compression Ratio: 0.20519161754588222
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 42
		Read count: 281047
		Read latency, micros: 0.329 ms.
		Write count: 144
		Write latency, micros: 0.260 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1296
		Compacted partition minimum size, bytes: 1598
		Compacted partition maximum size, bytes: 24601
		Compacted partition mean size, bytes: 6360

		Table: IndexInfo
		SSTable count: 1
		Space used (live), bytes: 4732
		Space used (total), bytes: 4732
		SSTable Compression Ratio: 0.9322033898305084
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 1
		Read latency, micros: 4.864 ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 16
		Compacted partition minimum size, bytes: 51
		Compacted partition maximum size, bytes: 60
		Compacted partition mean size, bytes: 60

----------------
Keyspace: searchapi_dsp_approved_feed_vitalii
	Read Count: 0
	Read Latency: NaN ms.
	Write Count: 573891
	Write Latency: 0.033150019777274775 ms.
	Pending Tasks: 0
		Table: 20131009_203006_1381343406
		SSTable count: 4
		Space used (live), bytes: 1157275045
		Space used (total), bytes: 1157416736
		SSTable Compression Ratio: 0.35243424641349497
		Number of keys (estimate): 574208
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 13
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 573891
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 720328
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6085

----------------
Keyspace: searchapi_dsp_approved_feed_alpha
	Read Count: 99067
	Read Latency: 0.7340010699829409 ms.
	Write Count: 3763071
	Write Latency: 0.026836108858961205 ms.
	Pending Tasks: 0
		Table: 20131009_203006_1381343406
		SSTable count: 22
		SSTables in each level: [0, 0, 22, 0, 0, 0, 0, 0, 0]
		Space used (live), bytes: 3623280554
		Space used (total), bytes: 3624526506
		SSTable Compression Ratio: 0.3556069099894895
		Number of keys (estimate): 1794560
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 36
		Read count: 81943
		Read latency, micros: NaN ms.
		Write count: 1793104
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2349952
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6121

		Table: 20130921_004042_1379716842
		SSTable count: 5
		Space used (live), bytes: 3892005641
		Space used (total), bytes: 3892920405
		SSTable Compression Ratio: 0.35255558750057353
		Number of keys (estimate): 1970304
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 39
		Read count: 17124
		Read latency, micros: NaN ms.
		Write count: 1969967
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 350
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2465216
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6036

----------------
Keyspace: vastre
	Read Count: 5535
	Read Latency: 6.6911300813008125 ms.
	Write Count: 2573884
	Write Latency: 0.15226749806906606 ms.
	Pending Tasks: 0
		Table: inventory
		SSTable count: 11
		Space used (live), bytes: 6049990037
		Space used (total), bytes: 6050134884
		SSTable Compression Ratio: 0.35825903710088336
		Number of keys (estimate): 5091584
		Memtable cell count: 367999
		Memtable data size, bytes: 20971520
		Memtable switch count: 11
		Read count: 5535
		Read latency, micros: NaN ms.
		Write count: 1286985
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 194
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 8590072
		Compacted partition minimum size, bytes: 150
		Compacted partition maximum size, bytes: 219342
		Compacted partition mean size, bytes: 2453

		Table (index): inventory.inventoryUID
		SSTable count: 4
		Space used (live), bytes: 325158555
		Space used (total), bytes: 325542657
		SSTable Compression Ratio: 0.5301921528572615
		Number of keys (estimate): 2591488
		Memtable cell count: 19653
		Memtable data size, bytes: 1048576
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 1286899
		Write latency, micros: 0.029 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 6365816
		Compacted partition minimum size, bytes: 73
		Compacted partition maximum size, bytes: 2816159
		Compacted partition mean size, bytes: 139

----------------
Keyspace: TestVcellsPolishedData
	Read Count: 168
	Read Latency: 0.8543928571428571 ms.
	Write Count: 753
	Write Latency: 2.4579628154050464 ms.
	Pending Tasks: 0
		Table: test_vcells_polished_data
		SSTable count: 4
		Space used (live), bytes: 470222414
		Space used (total), bytes: 470223694
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 53760
		Memtable cell count: 30
		Memtable data size, bytes: 110682
		Memtable switch count: 9
		Read count: 168
		Read latency, micros: NaN ms.
		Write count: 753
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 102088
		Compacted partition minimum size, bytes: 3312
		Compacted partition maximum size, bytes: 1629722
		Compacted partition mean size, bytes: 16558

----------------
Keyspace: searchapi_dsp_approved_feed_test
	Read Count: 154
	Read Latency: 1.9904415584415585 ms.
	Write Count: 644079
	Write Latency: 0.025757469192443785 ms.
	Pending Tasks: 0
		Table: 20131011_182853_1381508933
		SSTable count: 4
		Space used (live), bytes: 1237696525
		Space used (total), bytes: 1237836296
		SSTable Compression Ratio: 0.35361982682795234
		Number of keys (estimate): 613248
		Memtable cell count: 31102
		Memtable data size, bytes: 170821647
		Memtable switch count: 13
		Read count: 154
		Read latency, micros: NaN ms.
		Write count: 644079
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 769040
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6133

----------------
Keyspace: OpsCenter
	Read Count: 1075487
	Read Latency: 0.1405984033279807 ms.
	Write Count: 14137149
	Write Latency: 0.05747777009353159 ms.
	Pending Tasks: 0
		Table: settings
		SSTable count: 1
		Space used (live), bytes: 4732
		Space used (total), bytes: 4732
		SSTable Compression Ratio: 0.9629629629629629
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 16
		Compacted partition minimum size, bytes: 51
		Compacted partition maximum size, bytes: 60
		Compacted partition mean size, bytes: 60

		Table: rollups60
		SSTable count: 2
		Space used (live), bytes: 285712246
		Space used (total), bytes: 285739623
		SSTable Compression Ratio: 0.549293451388619
		Number of keys (estimate): 1408
		Memtable cell count: 3216865
		Memtable data size, bytes: 26214400
		Memtable switch count: 60
		Read count: 887875
		Read latency, micros: 0.150 ms.
		Write count: 9892918
		Write latency, micros: 0.038 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 6912
		Compacted partition minimum size, bytes: 125
		Compacted partition maximum size, bytes: 943127
		Compacted partition mean size, bytes: 370808

		Table: rollups7200
		SSTable count: 1
		Space used (live), bytes: 2796816
		Space used (total), bytes: 2805285
		SSTable Compression Ratio: 0.46836366183323996
		Number of keys (estimate): 768
		Memtable cell count: 26426
		Memtable data size, bytes: 1048576
		Memtable switch count: 10
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 82660
		Write latency, micros: 0.025 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2096
		Compacted partition minimum size, bytes: 311
		Compacted partition maximum size, bytes: 11864
		Compacted partition mean size, bytes: 8688

		Table: rollups86400
		SSTable count: 1
		Space used (live), bytes: 295399
		Space used (total), bytes: 299204
		SSTable Compression Ratio: 0.4900703646819302
		Number of keys (estimate): 768
		Memtable cell count: 2328
		Memtable data size, bytes: 1048576
		Memtable switch count: 5
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 6652
		Write latency, micros: 0.018 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2096
		Compacted partition minimum size, bytes: 125
		Compacted partition maximum size, bytes: 1109
		Compacted partition mean size, bytes: 850

		Table: pdps
		SSTable count: 2
		Space used (live), bytes: 29363
		Space used (total), bytes: 31131
		SSTable Compression Ratio: 0.2850374290599562
		Number of keys (estimate): 256
		Memtable cell count: 720944
		Memtable data size, bytes: 58720256
		Memtable switch count: 14
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 2176704
		Write latency, micros: 0.170 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1312
		Compacted partition minimum size, bytes: 29522
		Compacted partition maximum size, bytes: 35425
		Compacted partition mean size, bytes: 35425

		Table: events_timeline
		SSTable count: 1
		Space used (live), bytes: 6652
		Space used (total), bytes: 6762
		SSTable Compression Ratio: 0.6203007518796992
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 1
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 1
		Write latency, micros: 0.302 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1296
		Compacted partition minimum size, bytes: 73
		Compacted partition maximum size, bytes: 1109
		Compacted partition mean size, bytes: 598

		Table: rollups300
		SSTable count: 4
		Space used (live), bytes: 62838990
		Space used (total), bytes: 62847005
		SSTable Compression Ratio: 0.40016431824415366
		Number of keys (estimate): 2304
		Memtable cell count: 643177
		Memtable data size, bytes: 10485760
		Memtable switch count: 18
		Read count: 177700
		Read latency, micros: 0.060 ms.
		Write count: 1978194
		Write latency, micros: 0.032 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 8880
		Compacted partition minimum size, bytes: 61
		Compacted partition maximum size, bytes: 263210
		Compacted partition mean size, bytes: 54206

		Table: events
		SSTable count: 4
		Space used (live), bytes: 31275
		Space used (total), bytes: 31391
		SSTable Compression Ratio: 0.4495362218092923
		Number of keys (estimate): 512
		Memtable cell count: 6
		Memtable data size, bytes: 1790
		Memtable switch count: 4
		Read count: 9912
		Read latency, micros: 0.721 ms.
		Write count: 20
		Write latency, micros: 0.219 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2632
		Compacted partition minimum size, bytes: 180
		Compacted partition maximum size, bytes: 446
		Compacted partition mean size, bytes: 250

----------------
{noformat}

'nodetool info' taken within a few seconds:
{noformat}
[jre@cassandra5 ~]$ nodetool info
Token            : (invoke with -T/--tokens to see all 256 tokens)
ID               : 72680375-d5b8-49ae-a33b-b99fec3009d3
Gossip active    : true
Thrift active    : true
Native Transport active: true
Load             : 15.63 GB
Generation No    : 1381357639
Uptime (seconds) : 1011643
Heap Memory (MB) : 3723.10 / 11980.81
Data Center      : Oakland
Rack             : C7.10.11
Exceptions       : 118
Key Cache        : size 3380824 (bytes), capacity 536870912 (bytes), 2198265 hits, 2208066
requests, 0.981 recent hit rate, 7200 save period in seconds
Row Cache        : size 17276702 (bytes), capacity 268435456 (bytes), 52996 hits, 55926 requests,
NaN recent hit rate, 0 save period in seconds
{noformat}


was (Author: jre):
'nodetool cfstats' below:

{{noformat}}
[jre@cassandra5 ~]$ nodetool cfstats
Keyspace: system_traces
	Read Count: 16
	Read Latency: 1.5970625 ms.
	Write Count: 5171
	Write Latency: 0.06117172693869658 ms.
	Pending Tasks: 0
		Table: sessions
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 455
		Memtable data size, bytes: 255170
		Memtable switch count: 0
		Read count: 8
		Read latency, micros: 0.179 ms.
		Write count: 158
		Write latency, micros: 0.041 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: events
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 20000
		Memtable data size, bytes: 1048576
		Memtable switch count: 0
		Read count: 8
		Read latency, micros: 3.016 ms.
		Write count: 5013
		Write latency, micros: 0.062 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

----------------
Keyspace: VcellsPolishedData
	Read Count: 0
	Read Latency: NaN ms.
	Write Count: 0
	Write Latency: NaN ms.
	Pending Tasks: 0
		Table: vcells_polished_data
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

----------------
Keyspace: system
	Read Count: 502538
	Read Latency: 0.337618096541953 ms.
	Write Count: 1063
	Write Latency: 0.19078080903104422 ms.
	Pending Tasks: 0
		Table: NodeIdInfo
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: batchlog
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: hints
		SSTable count: 1
		Space used (live), bytes: 37070
		Space used (total), bytes: 37766
		SSTable Compression Ratio: 0.34898362817272827
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 1
		Read count: 8
		Read latency, micros: 0.199 ms.
		Write count: 64
		Write latency, micros: 0.064 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 336
		Compacted partition minimum size, bytes: 88149
		Compacted partition maximum size, bytes: 105778
		Compacted partition mean size, bytes: 105778

		Table: schema_columns
		SSTable count: 2
		Space used (live), bytes: 26224
		Space used (total), bytes: 33885
		SSTable Compression Ratio: 0.20573152682760049
		Number of keys (estimate): 256
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 37
		Read count: 221301
		Read latency, micros: 0.347 ms.
		Write count: 139
		Write latency, micros: 0.288 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1320
		Compacted partition minimum size, bytes: 1332
		Compacted partition maximum size, bytes: 29521
		Compacted partition mean size, bytes: 4895

		Table: peer_events
		SSTable count: 1
		Space used (live), bytes: 5828
		Space used (total), bytes: 5828
		SSTable Compression Ratio: 0.3692434210526316
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 1
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 37
		Write latency, micros: 0.271 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 16
		Compacted partition minimum size, bytes: 643
		Compacted partition maximum size, bytes: 1109
		Compacted partition mean size, bytes: 935

		Table: paxos
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: schema_keyspaces
		SSTable count: 2
		Space used (live), bytes: 12311
		Space used (total), bytes: 15857
		SSTable Compression Ratio: 0.33088662790697676
		Number of keys (estimate): 256
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 18
		Read count: 2
		Read latency, micros: 0.529 ms.
		Write count: 91
		Write latency, micros: 0.051 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1320
		Compacted partition minimum size, bytes: 150
		Compacted partition maximum size, bytes: 215
		Compacted partition mean size, bytes: 213

		Table: peers
		SSTable count: 2
		Space used (live), bytes: 36210
		Space used (total), bytes: 37570
		SSTable Compression Ratio: 0.39710715688810955
		Number of keys (estimate): 256
		Memtable cell count: 52
		Memtable data size, bytes: 12737
		Memtable switch count: 14
		Read count: 6
		Read latency, micros: 3.320 ms.
		Write count: 269
		Write latency, micros: 0.103 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1320
		Compacted partition minimum size, bytes: 73
		Compacted partition maximum size, bytes: 14237
		Compacted partition mean size, bytes: 7161

		Table: schema_triggers
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 1997
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 11
		Read count: 130
		Read latency, micros: 0.101 ms.
		Write count: 36
		Write latency, micros: 0.068 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: range_xfers
		SSTable count: 0
		Space used (live), bytes: 0
		Space used (total), bytes: 0
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 0
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 0
		Compacted partition minimum size, bytes: 0
		Compacted partition maximum size, bytes: 0
		Compacted partition mean size, bytes: 0

		Table: compactions_in_progress
		SSTable count: 2
		Space used (live), bytes: 10927
		Space used (total), bytes: 44335
		SSTable Compression Ratio: 0.9089015151515152
		Number of keys (estimate): 256
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 220
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 220
		Write latency, micros: 0.262 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1312
		Compacted partition minimum size, bytes: 30
		Compacted partition maximum size, bytes: 310
		Compacted partition mean size, bytes: 104

		Table: local
		SSTable count: 1
		Space used (live), bytes: 11687
		Space used (total), bytes: 14758
		SSTable Compression Ratio: 0.46092184368737477
		Number of keys (estimate): 128
		Memtable cell count: 8
		Memtable data size, bytes: 520
		Memtable switch count: 28
		Read count: 43
		Read latency, micros: 5.012 ms.
		Write count: 63
		Write latency, micros: 0.300 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1296
		Compacted partition minimum size, bytes: 11865
		Compacted partition maximum size, bytes: 14237
		Compacted partition mean size, bytes: 14237

		Table: schema_columnfamilies
		SSTable count: 1
		Space used (live), bytes: 17411
		Space used (total), bytes: 26387
		SSTable Compression Ratio: 0.20519161754588222
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 42
		Read count: 281047
		Read latency, micros: 0.329 ms.
		Write count: 144
		Write latency, micros: 0.260 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1296
		Compacted partition minimum size, bytes: 1598
		Compacted partition maximum size, bytes: 24601
		Compacted partition mean size, bytes: 6360

		Table: IndexInfo
		SSTable count: 1
		Space used (live), bytes: 4732
		Space used (total), bytes: 4732
		SSTable Compression Ratio: 0.9322033898305084
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 1
		Read latency, micros: 4.864 ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 16
		Compacted partition minimum size, bytes: 51
		Compacted partition maximum size, bytes: 60
		Compacted partition mean size, bytes: 60

----------------
Keyspace: searchapi_dsp_approved_feed_vitalii
	Read Count: 0
	Read Latency: NaN ms.
	Write Count: 573891
	Write Latency: 0.033150019777274775 ms.
	Pending Tasks: 0
		Table: 20131009_203006_1381343406
		SSTable count: 4
		Space used (live), bytes: 1157275045
		Space used (total), bytes: 1157416736
		SSTable Compression Ratio: 0.35243424641349497
		Number of keys (estimate): 574208
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 13
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 573891
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 720328
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6085

----------------
Keyspace: searchapi_dsp_approved_feed_alpha
	Read Count: 99067
	Read Latency: 0.7340010699829409 ms.
	Write Count: 3763071
	Write Latency: 0.026836108858961205 ms.
	Pending Tasks: 0
		Table: 20131009_203006_1381343406
		SSTable count: 22
		SSTables in each level: [0, 0, 22, 0, 0, 0, 0, 0, 0]
		Space used (live), bytes: 3623280554
		Space used (total), bytes: 3624526506
		SSTable Compression Ratio: 0.3556069099894895
		Number of keys (estimate): 1794560
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 36
		Read count: 81943
		Read latency, micros: NaN ms.
		Write count: 1793104
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2349952
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6121

		Table: 20130921_004042_1379716842
		SSTable count: 5
		Space used (live), bytes: 3892005641
		Space used (total), bytes: 3892920405
		SSTable Compression Ratio: 0.35255558750057353
		Number of keys (estimate): 1970304
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 39
		Read count: 17124
		Read latency, micros: NaN ms.
		Write count: 1969967
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 350
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2465216
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6036

----------------
Keyspace: vastre
	Read Count: 5535
	Read Latency: 6.6911300813008125 ms.
	Write Count: 2573884
	Write Latency: 0.15226749806906606 ms.
	Pending Tasks: 0
		Table: inventory
		SSTable count: 11
		Space used (live), bytes: 6049990037
		Space used (total), bytes: 6050134884
		SSTable Compression Ratio: 0.35825903710088336
		Number of keys (estimate): 5091584
		Memtable cell count: 367999
		Memtable data size, bytes: 20971520
		Memtable switch count: 11
		Read count: 5535
		Read latency, micros: NaN ms.
		Write count: 1286985
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 194
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 8590072
		Compacted partition minimum size, bytes: 150
		Compacted partition maximum size, bytes: 219342
		Compacted partition mean size, bytes: 2453

		Table (index): inventory.inventoryUID
		SSTable count: 4
		Space used (live), bytes: 325158555
		Space used (total), bytes: 325542657
		SSTable Compression Ratio: 0.5301921528572615
		Number of keys (estimate): 2591488
		Memtable cell count: 19653
		Memtable data size, bytes: 1048576
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 1286899
		Write latency, micros: 0.029 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 6365816
		Compacted partition minimum size, bytes: 73
		Compacted partition maximum size, bytes: 2816159
		Compacted partition mean size, bytes: 139

----------------
Keyspace: TestVcellsPolishedData
	Read Count: 168
	Read Latency: 0.8543928571428571 ms.
	Write Count: 753
	Write Latency: 2.4579628154050464 ms.
	Pending Tasks: 0
		Table: test_vcells_polished_data
		SSTable count: 4
		Space used (live), bytes: 470222414
		Space used (total), bytes: 470223694
		SSTable Compression Ratio: 0.0
		Number of keys (estimate): 53760
		Memtable cell count: 30
		Memtable data size, bytes: 110682
		Memtable switch count: 9
		Read count: 168
		Read latency, micros: NaN ms.
		Write count: 753
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 102088
		Compacted partition minimum size, bytes: 3312
		Compacted partition maximum size, bytes: 1629722
		Compacted partition mean size, bytes: 16558

----------------
Keyspace: searchapi_dsp_approved_feed_test
	Read Count: 154
	Read Latency: 1.9904415584415585 ms.
	Write Count: 644079
	Write Latency: 0.025757469192443785 ms.
	Pending Tasks: 0
		Table: 20131011_182853_1381508933
		SSTable count: 4
		Space used (live), bytes: 1237696525
		Space used (total), bytes: 1237836296
		SSTable Compression Ratio: 0.35361982682795234
		Number of keys (estimate): 613248
		Memtable cell count: 31102
		Memtable data size, bytes: 170821647
		Memtable switch count: 13
		Read count: 154
		Read latency, micros: NaN ms.
		Write count: 644079
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 769040
		Compacted partition minimum size, bytes: 1917
		Compacted partition maximum size, bytes: 17084
		Compacted partition mean size, bytes: 6133

----------------
Keyspace: OpsCenter
	Read Count: 1075487
	Read Latency: 0.1405984033279807 ms.
	Write Count: 14137149
	Write Latency: 0.05747777009353159 ms.
	Pending Tasks: 0
		Table: settings
		SSTable count: 1
		Space used (live), bytes: 4732
		Space used (total), bytes: 4732
		SSTable Compression Ratio: 0.9629629629629629
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 0
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 0
		Write latency, micros: NaN ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 16
		Compacted partition minimum size, bytes: 51
		Compacted partition maximum size, bytes: 60
		Compacted partition mean size, bytes: 60

		Table: rollups60
		SSTable count: 2
		Space used (live), bytes: 285712246
		Space used (total), bytes: 285739623
		SSTable Compression Ratio: 0.549293451388619
		Number of keys (estimate): 1408
		Memtable cell count: 3216865
		Memtable data size, bytes: 26214400
		Memtable switch count: 60
		Read count: 887875
		Read latency, micros: 0.150 ms.
		Write count: 9892918
		Write latency, micros: 0.038 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 6912
		Compacted partition minimum size, bytes: 125
		Compacted partition maximum size, bytes: 943127
		Compacted partition mean size, bytes: 370808

		Table: rollups7200
		SSTable count: 1
		Space used (live), bytes: 2796816
		Space used (total), bytes: 2805285
		SSTable Compression Ratio: 0.46836366183323996
		Number of keys (estimate): 768
		Memtable cell count: 26426
		Memtable data size, bytes: 1048576
		Memtable switch count: 10
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 82660
		Write latency, micros: 0.025 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2096
		Compacted partition minimum size, bytes: 311
		Compacted partition maximum size, bytes: 11864
		Compacted partition mean size, bytes: 8688

		Table: rollups86400
		SSTable count: 1
		Space used (live), bytes: 295399
		Space used (total), bytes: 299204
		SSTable Compression Ratio: 0.4900703646819302
		Number of keys (estimate): 768
		Memtable cell count: 2328
		Memtable data size, bytes: 1048576
		Memtable switch count: 5
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 6652
		Write latency, micros: 0.018 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2096
		Compacted partition minimum size, bytes: 125
		Compacted partition maximum size, bytes: 1109
		Compacted partition mean size, bytes: 850

		Table: pdps
		SSTable count: 2
		Space used (live), bytes: 29363
		Space used (total), bytes: 31131
		SSTable Compression Ratio: 0.2850374290599562
		Number of keys (estimate): 256
		Memtable cell count: 720944
		Memtable data size, bytes: 58720256
		Memtable switch count: 14
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 2176704
		Write latency, micros: 0.170 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1312
		Compacted partition minimum size, bytes: 29522
		Compacted partition maximum size, bytes: 35425
		Compacted partition mean size, bytes: 35425

		Table: events_timeline
		SSTable count: 1
		Space used (live), bytes: 6652
		Space used (total), bytes: 6762
		SSTable Compression Ratio: 0.6203007518796992
		Number of keys (estimate): 128
		Memtable cell count: 0
		Memtable data size, bytes: 0
		Memtable switch count: 1
		Read count: 0
		Read latency, micros: NaN ms.
		Write count: 1
		Write latency, micros: 0.302 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 1296
		Compacted partition minimum size, bytes: 73
		Compacted partition maximum size, bytes: 1109
		Compacted partition mean size, bytes: 598

		Table: rollups300
		SSTable count: 4
		Space used (live), bytes: 62838990
		Space used (total), bytes: 62847005
		SSTable Compression Ratio: 0.40016431824415366
		Number of keys (estimate): 2304
		Memtable cell count: 643177
		Memtable data size, bytes: 10485760
		Memtable switch count: 18
		Read count: 177700
		Read latency, micros: 0.060 ms.
		Write count: 1978194
		Write latency, micros: 0.032 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 8880
		Compacted partition minimum size, bytes: 61
		Compacted partition maximum size, bytes: 263210
		Compacted partition mean size, bytes: 54206

		Table: events
		SSTable count: 4
		Space used (live), bytes: 31275
		Space used (total), bytes: 31391
		SSTable Compression Ratio: 0.4495362218092923
		Number of keys (estimate): 512
		Memtable cell count: 6
		Memtable data size, bytes: 1790
		Memtable switch count: 4
		Read count: 9912
		Read latency, micros: 0.721 ms.
		Write count: 20
		Write latency, micros: 0.219 ms.
		Pending tasks: 0
		Bloom filter false positives: 0
		Bloom filter false ratio: 0.00000
		Bloom filter space used, bytes: 2632
		Compacted partition minimum size, bytes: 180
		Compacted partition maximum size, bytes: 446
		Compacted partition mean size, bytes: 250

----------------
{noformat}

'nodetool info' taken within a few seconds:
{noformat}
[jre@cassandra5 ~]$ nodetool info
Token            : (invoke with -T/--tokens to see all 256 tokens)
ID               : 72680375-d5b8-49ae-a33b-b99fec3009d3
Gossip active    : true
Thrift active    : true
Native Transport active: true
Load             : 15.63 GB
Generation No    : 1381357639
Uptime (seconds) : 1011643
Heap Memory (MB) : 3723.10 / 11980.81
Data Center      : Oakland
Rack             : C7.10.11
Exceptions       : 118
Key Cache        : size 3380824 (bytes), capacity 536870912 (bytes), 2198265 hits, 2208066
requests, 0.981 recent hit rate, 7200 save period in seconds
Row Cache        : size 17276702 (bytes), capacity 268435456 (bytes), 52996 hits, 55926 requests,
NaN recent hit rate, 0 save period in seconds
{noformat}

> "Load" calculated in "nodetool info" is strange/inaccurate in JBOD setups
> -------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6179
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6179
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: JBOD layouts
>            Reporter: J. Ryan Earl
>            Assignee: Mikhail Stepura
>
> We recently noticed that the storage capacity on Cassandra nodes using JBOD layout was
returning what looks close to the average data volume size, instead of the sum of all JBOD
data volumes.  It's not exactly an average and I haven't had time to dig into the code to
see what it's really doing, it's like some sort of sample of the JBOD volumes sizes.
> So looking at the JBOD volumes we see:
> {noformat}
> [jre@cassandra2 ~]$ df -h
> Filesystem            Size  Used Avail Use% Mounted on
> [...]
> /dev/sdc1             1.1T  9.4G  1.1T   1% /data/1
> /dev/sdd1             1.1T  9.2G  1.1T   1% /data/2
> /dev/sde1             1.1T   11G  1.1T   1% /data/3
> /dev/sdf1             1.1T   11G  1.1T   1% /data/4
> /dev/sdg1             1.1T  9.2G  1.1T   1% /data/5
> /dev/sdh1             1.1T   11G  1.1T   1% /data/6
> /dev/sdi1             1.1T  9.8G  1.1T   1% /data/7
> {noformat}
> Looking at 'nodetool info' we see:
> {noformat}
> [jre@cassandra2 ~]$ nodetool info
> Token            : (invoke with -T/--tokens to see all 256 tokens)
> ID               : 631f0be3-ce52-4eb9-b48b-069fbfdf0a97
> Gossip active    : true
> Thrift active    : true
> Native Transport active: true
> Load             : 10.57 GB
> {noformat}
> So there are 7 disks in a JBOD configuration in this example, the sum should be closer
to 70G for each node.  Maybe we're misinterpreting what this value should be, but things like
OpsCenter appear to use this "load" value as the size of data on the local node, which I expect
to be the sum of JBOD volumes.



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