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#338 [@dingxiaoshuai123 @panlei-coder ]

Summer Code

题目	负责人	进度
PikiwiDB 缓存层实现冷热数据分离	沈梦菊	redis cache https://github.com/pikiwidb/rediscache/pull/7/files
PikiwiDB 实现集群模式	@longfar-ncy	配置文件可能需要支持嵌套。任务描述清晰以后 @longfar-ncy 发送到微信群 @Tangruilin 整理为 issue
实现 Pika 高性能流量转发代理	@黄恺一	Task 模块进行中

core

Item	Priority	Issue/Pr	Owner	Description
fix: add basic.tcl, fixed some bugs	P1	#403	lyc
fix: add bitops.tcl, fixed some bugs	P1	#402	lyc	.
TCL 跑 flushall 命令会报错	P0	#401	. lyc	.
fix: add type.tcl and quit.tcl files, fix some bug	P1	#398	lyc
support echo, auth commnd	P1	#356	tangruilin
test raft cluster by python	P1	. #393	liuhuan	.
Startup segment error	P1.	#389	pl & lyc
update task manager	P1	#397	trl	.
fix: Resolve the inconsistency between member configuration and log index in snapshot meta	P1	#386	pl
feat: add root dir etc for misc	P1	. #381	yuyu
feat: support dbsize, bgsave, lastsave command	P1	#379	renzhenfeng	draft
feat: add monitor cmd	P1	#374	gukj	draft
loading pikiwidb.conf overuses atomic variables	P0	#329	gukj
feat: add info section: server stats cpu commandstats	P1	#338	shenmengju
feat: add client command	P0	#361
feat: add sort commands	P0	#357
refactor:Replacement network library	P0	#349
feat: enable wal for rocksdb in the single-node scenario	P0	#340	trl
add info section: server stats cpu commandstats	P1	#338	smj	@dxs @LanaO Review
feat: support read consistency	P1	#336	pl
loading pikiwidb.conf overuses atomic variables	P1	#329	lihuan
add infoCmd section:server stats cpu commandstats	P1	#326	smj
distinguish between normal node startup and snapshot loading	P1	#319	pl
Check fd number	P1	#315	lyc
将存储引擎中直接写 Rocksdb 的部分换成调用封装的 Batch 接口	P1	#280
add command object pool	P2	#260	lqx
feat: Add online profiling functionality	P1	#256
modify readme	P1	#230
主从与 raft 的切换	P1	#342	pl
Pika 主从复制一些经验教训	P1	#176
command develop tasks	P1	#30
降低 Pika 碎片化监控，提升 compact 性能	P1	OpenAtomFoundation/pika#2255	gukaijie

todo:

• 1 binlog for master-slave; raft; slot
• 2 master -> slave replication： (1) using redis command SYNC&PSYNC; (2) using RocksDB WAL instead of pika binlog by RocksDB API GetUpdateSince()
• 3 redis cache
• 4 info command
• 5 hello command

存储模型 floyd

• issue Floyd 存储引擎改造 #269

Item	Priority	Issue/Pr	Owner	Description
添加关闭 RocksDB wal 的接口	P0		dxs	done
先把 floyd 移植过来	P0		dxs	done
一个 db 内一个 key 只能有一个 类型	P0

raft 集群进度

• issue Raft 集群进度 #277

State	Item	Priority	Issue/Pr	Owner	Description
已合并	引入 braft	p0	#130	@panlei-coder, @longfar-ncy , @dingxiaoshuai123
已合并	redis raft 指令	p0	#136	@panlei-coder, @KKorpse, @hotjump
已合并	braft log index 映射	p0	#246	@longfar-ncy, @hotjump
已合并	pikiwidb checkpoint	p0	#226	@dingxiaoshuai123, @hotjump
已合并	apply 支持	p0	#213	@longfar-ncy, @hotjump
merged	braft 快照自定义日志截断点	p0	pikiwidb/braft#2	@panlei-coder, @hotjump
merged	raft 快照支持	p0	#238, #245	@dingxiaoshuai123, @panlei-coder, @hotjump	第二个 pr 包含第一个 pr
merged	将 import-braft 合并到 unstable	p0	#300
	braft 主从模式	p1	pikiwidb/braft#1	@KKorpse
	pikiwidb 主从命令	p1		@panlei-coder	依赖于 braft 主从代码
	优雅关闭 pikiwidb	p1		@dingxiaoshuai123	和 snapshot 相关
	logindex 维护的多队列优化	p1		@longfar-ncy	思路见#265
	flush event 时机	p1
	单独 cf 保存其它 cf flush 位点	p1
	braft 新增接口，判断两个 logindex 之间数据量	p1
	on_snapshot_load 区分自己安装快照 vs 自己正在启动	p0	#319	@panlei-coder	非优化，正常功能
	on_snapshot_load中设置自定义的快照回放点	p1	#319	@panlei-coder	优化
	raft 集群操作文档	p1
	raft 测试	p1			参考 redis-raft https://github.com/RedisLabs/redisraft/tree/master/tests

Pika binlog + braft -> 1 经典模式； 2 raft 模式。

可观测

Item	Priority	Issue/Pr	Owner	Description

工具集

Item	Priority	Issue/Pr	Owner	Description

云原生

Item	Priority	Issue/Pr	Owner	Description

质量建设

Item	Priority	Issue/Pr	Owner	Description
feature: add go test for pikiwidb from pika	P0	#75
TCL 测试错误汇总	P0	#266