calling number blocked

of Fsdatasetimpl object lock, so the heartbeat thread is blocked off, specifically to see the getdfsused Source:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/71/5F/wKiom1XMaETAypZyAAEovFmXess737.jpg "title=" a5.png "alt=" Wkiom1xmaetaypzyaaeovfmxess737.jpg "/>Through the analysis above, the basic can analyze the cause of the failure: large-scale to HDFS simultaneously write multiple batches of files, Datanode thread dump a large

Total BlockedBlocked count is the total number of times that the thread Blocked to enter or reenter a monitor. i.e. the number of times a thread has been in the Java.lang.Thread.State.BLOCKED state.Total WaitsWaited count is the total number of times that the thread waited for notification. i.e. the

determines the timeout value of the session (interactive connection) What is interactive and non-interactive?Interactive operation: In layman's terms, you open the MySQL client on your local computer, that is, the Black window, under the Black window for various SQL operations, of course, the TCP protocol is definitely going.Non-interactive: This is where you make program calls in your project. For example, one side is the Tomcat Web server, one side is the database server, how do they communic

ORA-06550: Line 1th, column 7th: PLS-00306: Parameter number or type error when calling ' Ls_jjn_report ' ORA-06550: Line 1th, column 7th: Pl/sql:statement ignored --------------stored procedure executes without a fault, but the program executes an error PLS-00306: Number of arguments or type errors when calling ' Ls

Phpcms V9 The list of news lists by number of comments in the specified columnCall a list of news items sorted by number of comments under a specified column{pc:get sql= "select * from phpcms_comment where Commentid like ' content_ specified column catid% ' ORDER BY total desc" rows= "9" return= "Data"} {loop $data $r} {str_cut ($r [title],60, ')} {/loop} {/PC}Call a list of all the sub-columns under a give

This paper is an object-oriented preheating chapter, explaining the difference between the two ways of calling, beginners are more likely to be pits. 1. Beginner's most confusing top1--call a function with a dot or a colon? Let's take a look at the following two lines of code: Copy Code code as follows: Msprite.setposition (100, 20); Msprite:setposition (100, 20); This is a nightmare for first-time friends with Lua, why are

The following error occurs when calling the Oracle stored procedure using SHELL today: PLS-00306: The number or type of parameters is incorrect when the stored procedure name is called. Summary: when the number or type of parameters is incorrect when the stored procedure name is called, One reason may be that the parameters of the front-end code are inconsiste