Li Yichao

Aggregator is too costly

6

It seems one `aggregate` rule starts a aggregator thread. Should it be done more efficiently?

[Feature request] calculation of rate for counters

13

It will be helpful if aggregation supports `rate calculation`. For example, network inflow or outflow data collected by collectd is monotonic increasing. We need to subtract two points and divide...

Pipeline io.

4

Currently, DatasetFolder load images and transform them in the same thread, so the latency is io latency + transform latency. It is better if we load images in another thread,...

reduce DeleteRange's negative impact on read by fragmenting range tombstones in the write path

12

* memtable format is updated to [v2](https://docs.google.com/document/d/1NfjELi8Zz27TUZ3HoxujPRLKe6ifx_Jg9cAEF6WtZNg/edit#) to reduce cpu usage when getting. * FragmentedRangeTombstoneList is adapted to the new memtable format so we can iterate range tombstones as before....

fix https://github.com/cmu-db/noisepage/issues/1448

# Bug Report optimzer fail to optimize # NoisePage ``` noisepage=# create table foo (a int); create table bar (b int); CREATE TABLE CREATE TABLE noisepage=# insert into foo values...

learner will neither participate in elections nor be inclued in quorum, and will not trigger election_timeout or vote. This feature makes it easy to add a read-only replica to server,...

raft arbiter support.

4

based on [dragonylffly](https://github.com/dragonylffly)'s work at https://github.com/baidu/braft/pull/321 and [PFZheng](https://github.com/PFZheng)'s comments there.