Ted Mostly

> > 有没有pika coredump信息？sentinel内部使用了pub-sub命令，而pub-sub已知存在并发安全性问题（#965），可能导致coredump。 > > 您好，[#797 (comment)](https://github.com/OpenAtomFoundation/pika/pull/797#issuecomment-571872846) 这个现象和这个并发安全问题有关吗？ 没关系，这个是rocksdb卡住了。不排除盘坏了

fixed now

> 另外请教一下， 现在我是通过`redis-cli -p 9221 --no-auth-warning info |grep "is_bgsaving" |awk -F':' '{print $2}'`这个指令获取备份状态，想知道这个准确么(即下面的状态是否是有效的） > > ``` > # Stats > total_connections_received:88 > instantaneous_ops_per_sec:5 > total_commands_processed:7563 > is_bgsaving:No > is_scaning_keyspace:No >...

方便的话加一下pika开发群

> 好的，谢谢，那现在集群推荐方式是哪种，每日数据量5亿左右 codis

https://github.com/Qihoo360/blackwidow/pull/17

LGTM，加点测试用例，构造一下竞争场景

it's really helpful in code comment

 if mermaid support tree map，we can describe this picture very well. tree map is realy realy helpful

> If we intend a tree chart as a family-like one, it shoud consider also the possible dead branches like this one. (colord identify the generations) > > ```mermaid >...