我有一个在盒子上运行的单节点 Elassandra 集群。它坠毁了光夜。以下是最后一行 systemctl 状态输出:
Main process exited, code=killed, status=6/ABRT
然而,在重新启动后,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 下的未决计数永远不会变为零。这种状态已经很久了。此集群中没有其他节点,并且目前没有数据写入其中。