当我尝试在cassandra表上运行不带where子句的select查询时，会抛出错误
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 3.11.3 | CQL spec 3.4.4 | Native protocol v4]
cqlsh:ev_keyspace> select * from my_keyspace.my_table ;
ServerError: java.lang.IllegalStateException: Unable to compute ceiling for max when histogram overflowed
我还检查了cassandra system.log文件并发现了相同的错误泛滥
ERROR [CompactionExecutor:5397] 2019-08-06 09:59:03,523 CassandraDaemon.java:228 - Exception in thread Thread[CompactionExecutor:5397,1,main]
java.lang.IllegalStateException: Unable to compute ceiling for max when histogram overflowed
at org.apache.cassandra.utils.EstimatedHistogram.rawMean(EstimatedHistogram.java:231) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.utils.EstimatedHistogram.mean(EstimatedHistogram.java:220) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.io.sstable.metadata.StatsMetadata.getEstimatedDroppableTombstoneRatio(StatsMetadata.java:115) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.io.sstable.format.SSTableReader.getEstimatedDroppableTombstoneRatio(SSTableReader.java:1926) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.worthDroppingTombstones(AbstractCompactionStrategy.java:423) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundSSTables(SizeTieredCompactionStrategy.java:99) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getNextBackgroundTask(SizeTieredCompactionStrategy.java:183) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.db.compaction.CompactionStrategyManager.getNextBackgroundTask(CompactionStrategyManager.java:153) ~[apache-cassandra-3.11.3.jar:3.11.3]
at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:268) ~[apache-cassandra-3.11.3.jar:3.11.3]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_181]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81) [apache-cassandra-3.11.3.jar:3.11.3]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_181]
# nodetool cfhistograms my_keyspace my_table
Percentile SSTables Write Latency Read Latency Partition Size Cell Count
(micros) (micros) (bytes)
50% 0.00 42.51 0.00 107964792 NaN
75% 0.00 51.01 0.00 962624926 NaN
95% 0.00 61.21 0.00 14831182994 NaN
98% 0.00 73.46 0.00 36904729268 NaN
99% 0.00 88.15 0.00 132236317342 NaN
Min 0.00 11.87 0.00 4769 0
Max 0.00 1358.10 0.00 1322363173429223372036854776000
我不确定此错误的含义以及引发该错误的原因。有人可以帮我理解吗？