我有一个运行在盒子上的单节点elassandra集群。夜幕降临。以下是最后一行systemctl状态输出： Main process exited, code=killed, status=6/ABRT 然而，重新启动后，它陷入了突变阶段，类似的行反复出现在日志（/var/log/cassandra/system.log）中：

2020-09-14 12:53:38,048 TRACE [MutationStage-31] ElasticSecondaryIndex.java:2158 readCellValue indexer=730313363 name=value kind=REGULAR type=text value={"dw1":{"6":{"total_weight":"72664168.50","total_count":"5979710.00","product_name":"Masala 12g","target_weight":"12","mean_weight":"12.15","th_packed_weight":"71756520.00","ega":"907648.50","ega_per":"1.26"}},"dw2":{"6":{"total_weight":"72654813.00","total_count":"5979710.00","product_name":"Masala 12g","target_weight":"12","mean_weight":"12.15","th_packed_weight":"71756520.00","ega":"898293.00","ega_per":"1.25"}}}

tpstats输出：

Pool Name                         Active   Pending      Completed   Blocked  All time blocked
ReadStage                              0         0              0         0                 0
MiscStage                              0         0              0         0                 0
CompactionExecutor                     0         0              9         0                 0
MutationStage                         32       920        5808076         0                 0
MemtableReclaimMemory                  0         0              8         0                 0
GossipStage                            0         0              0         0                 0
SecondaryIndexManagement               0         0              0         0                 0
RequestResponseStage                   0         0              0         0                 0
ReadRepairStage                        0         0              0         0                 0
CounterMutationStage                   0         0              0         0                 0
MigrationStage                         0         0              0         0                 0
MemtablePostFlush                      0         0              8         0                 0
PerDiskMemtableFlushWriter_0           0         0              8         0                 0
ValidationExecutor                     0         0              0         0                 0
Sampler                                0         0              0         0                 0
MemtableFlushWriter                    0         0              8         0                 0
InternalResponseStage                  0         0              0         0                 0
ViewMutationStage                      0         0              0         0                 0
AntiEntropyStage                       0         0              0         0                 0
CacheCleanupExecutor                   0         0              0         0                 0

Message type           Dropped
READ                         0
RANGE_SLICE                  0
_TRACE                       0
HINT                         0
MUTATION                     0
COUNTER_MUTATION             0
BATCH_STORE                  0
BATCH_REMOVE                 0
REQUEST_RESPONSE             0
PAGED_RANGE                  0
READ_REPAIR                  0

mutationstage下的挂起计数从不为零。它在这种状态下已经有很长时间了。此群集中没有其他节点，当前也没有写入任何数据。