I just encountered such a problem in learning Hadoop get started -sharp bin hdfs dfs -ls drwxr-xr-x - zhugw supergroup 0 2018-11-17 17:11 output drwxr-xr-x - zhugw supergroup 0 2018-11-17 18:02 pv_users_count -sharp bin hdfs df...
when running hadoop streaming, an error is reported. The exception content is as follows: Error: java.lang.RuntimeException: PipeMapRed.waitOutputThreads(): subprocess failed with code 126 at org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads...
tabbar is the root view :targetVC :""targetVCMainVC : tabbar UITabBarController *tabbarVC = (UITabBarController *)[UIApplication sharedApplication].keyWindow.rootViewController; tabbarVC.selectedIndex = 1; ...
in JAVA, running programs can be managed and monitored through the JMX interface. you can obtain the program GC through the open function of JMX, as follows: public class TestJMX { public static void main(String[] args) { List<GarbageC...
webpack,iview are new to each other. as shown in the figure, Closing tag matches nothing is reported when using the tag < Input > in the vue single file component. For some reason, using a prefixed tag will not report an error. I hope Daniel will...
what is the meaning of 1.Window as a constructor in js, how to use it, and what effect it has; Why do you specify window to point to yourself under 2.window (I don t know if you understand it correctly), that is, window.window; ...
problem description some of our mobile projects are based on vue-cli and react, but we feel that this problem has nothing to do with the framework, because what we have in common is that vendor.js app.js and other asynchronous chunk.js are referenced ...