Hadoop HDFS (Storage) Hadoop MapReduce (Computing Engine + Resource Management + Job Scheduling / Monitoring + ...) 比較明顯的限制： 每個 Cluster 大概就是 4,000 - 4,500 個 Node JobTracker 是架構瓶頸，Concurrent Task 大概是 40 (Storage) Hadoop MapReduce (Computing Engine) Hadoop YARN (Resource Management + Job Scheduling / Monitoring) 比較沒人知道的事： Hadoop 2.x 也默默地做了四五年了 ... 雖然是大修，但是 Backward Compatibility 做的很棒 Yahoo! 去年就已經把 Hadoop Operating System for Enterprise Hadoop 24 / 74 Resource vs. Container Resource Model 可以考量到以下的細節： Rack、Host 等 Resource 名稱 CPU 幾個 Core 記憶體 硬碟大小 網路頻寬 Container 就是根據 Resource Model 核可的 Resource。 因為 YARN 可以執行的

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user

method. The connect function takes the same arguments as listen, so, assuming the environment (i.e. host, cwd, etc.) is the same you should be able to pass the same arguments to connect as you did to listen connect methods that does not follow the listen methods is connect(host::String,port), which will attempt to connect to the host given by the host parameter on the port given by the port parameter. It allows Julia worker processes (from the same path as the current host) on the specified machines. Each machine definition takes the form [count*][user@]host[:port] [bind_addr[:port]]. user defaults to current user