Page History

...

tags: sg=<name>, user=<name>

Modules:

WAL

name: throughput (KB/s)

tags: sg=<name>

Memtable:

name: number of memtable

tags: sg=<name>

name: the size of memtables (histogram, points or MB), only update when memtable will be flushed

tags: sg=<name>

name: the size of chunks (histogram, points or MB), only update when memtable will be flushed

tags: sg=<name>

name: the duration of memtables (histogram, seconds), only update when memtable will be flushed

tags: sg=<name>

Flush: 

name: time cost of flushing a memtable

tags: sg=<name>

name: time cost of ordering data

tags: sg=<name>

name: time cost of encoding

tags: sg=<name>

name: time cost of IO

tags: sg=<name>

name: size of encoded memtable

tags: sg=<name>

name: number of pending tasks

tags: sg=<name>

name: number of flushing tasks

tags: sg=<name>

Compaction

• TTL
• Unseq
• ...

Lingzhe Zhang

as detailed as possible for diagnosing.

name: number of pending files

tags: sg=<name>

Cluster

Xinyu Tan

as detailed as possible for diagnosing.

QueryExecutor

Xiangwei Wei

Cache

Size and Hit Ratio  Yuan Tian

MManager

Zesong Sun

Last 

UDF

MQTT

Sync