leader负责跟踪维护 ISR 集合中所有follower副本的滞后状态,当follower副本"落后太多" 或 "follower超过一定时间没有向leader发送同步请求"时,leader副本会把它从 ISR 集合中剔除。如果 OSR 集合中有follower副本"追上(就是leo追上了leader的hw)"了leader副本,那么leader副本会把它从 OSR 集合转移至 ISR 集合。 [外...
副本使Kafka具备了容错能力。 每个分区都由一个服务器作为“leader”,零或若干服务器作为“followers”,leader负责处理消息的读和写,followers则去复 制leader.如果leader down了,followers中的一台则会自动成为leader。集群中的每个服务都会同时扮演两个角色:作为它所持有的一部分分区的leader,同 时作为其他分区的follow...
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If LLR > 1, then X is the leader and Y the lagger and vice versa for LLR <= 1. In our case, for the realization of our process (X,Y), we find LLR ~ 8.03.Non-synchronous data (Bitcoin markets)We now consider a real world use case where we have two Japanese bitcoin exchanges:...
We find that the lead/lag relations are restricted to a few minutes and do not reveal a dominant leader. We then analyze patterns in intraday ... PH Franses,R Van Leperen,P Kofman,... - 《Journal of Financial Research》 被引量: 33发表: 1997年 Interdependence between the US and major...
Cease-fire negotiations in Geneva have been delayed by the latearrival of members of the Houthi...CummingBruce, Nick
As a result, there are women on the board, on the executive leadership team and in senior roles across the business, McKendry says. “Promoting equal opportunity, diversity and inclusiveness have been on top of my agenda, especially since becoming site leader at our Watford office,” she ...
The second strategy mirrors the first strategy, except that it is based on the SPX futures being the leader. Hence, a positive return in the traded SPX futures price acts as a signal to sell VIX futures and vice versa. When evaluating the trading strategies, we consider the case where all...
Follow the leader: How changes in residential and non-residential investment predict changes in GDP. Real Estate Econ. 1997, 25, 253–270. [Google Scholar] [CrossRef] Coulson, N.E.; Kim, M.S. Residential investment, non-residential investment and GDP. Real Estate Econ. 2000, 28, 233–...
Lead-lag relationships, also known as leader-follower relationships, between economic time-series have been extensively researched in studies of empirical economics and finance. A characteristic example of such relationships constitutes the link between the stock market and oil prices which has been exami...