[HBASE-22705] IllegalArgumentException exception occured during MobFileCache eviction

• Type: Bug
• Status: Patch Available
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 2.0.5
• Component/s: mob
• Assignee: Pankaj Kumar
• Reporter: Pankaj Kumar
• Created: 17/Jul/19 15:01
• Updated: 20/Jan/20 18:20

Description

IllegalArgumentException occured during scan operation,

2019-07-08 01:46:57,764 | ERROR | RpcServer.FifoWFPBQ.default.handler=129,queue=9,port=21302 | Unexpected throwable object  | org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2502)
java.lang.IllegalArgumentException: Comparison method violates its general contract!
	at java.util.ComparableTimSort.mergeHi(ComparableTimSort.java:866)
	at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:483)
	at java.util.ComparableTimSort.mergeForceCollapse(ComparableTimSort.java:422)
	at java.util.ComparableTimSort.sort(ComparableTimSort.java:222)
	at java.util.Arrays.sort(Arrays.java:1312)
	at java.util.Arrays.sort(Arrays.java:1506)
	at java.util.ArrayList.sort(ArrayList.java:1462)
	at java.util.Collections.sort(Collections.java:141)
	at org.apache.hadoop.hbase.mob.MobFileCache.evict(MobFileCache.java:144)
	at org.apache.hadoop.hbase.mob.MobFileCache.openFile(MobFileCache.java:214)
	at org.apache.hadoop.hbase.regionserver.HMobStore.readCell(HMobStore.java:397)
	at org.apache.hadoop.hbase.regionserver.HMobStore.resolve(HMobStore.java:358)
	at org.apache.hadoop.hbase.regionserver.MobStoreScanner.next(MobStoreScanner.java:74)
	at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:150)