A.The ratio of the total memory occupied by the MemStore to the total memory of the RegionServer exceeds the preset threshold size

B.When the number of files in WALs reaches a threshold

C.HBasePeriod refreshMemstore, silentthink period is 1Hour

D.The total size of the MemStore in the Region has reached the preset Flush Size threshold

A.The data storage time is configured too long, and the accumulated data reaches the upper limit of the disk usage.

B.The disk configuration used to store Kafka data (such as the number of disks, size, etC. ) cannot meet the current business data stream declaration, resulting in the disk usage reaching the upper limit

C.Unreasonable business planning results in uneven data distribution and makes some disks reach the upper limit of usage

D.Caused by the failure of the rocker node

A.False

B.True

A.Syslog

B.VPN

C.BGP

D.SNMP

A.Null conversion

B.Modulo conversion

C.splice conversion

D.Add constant field