. Nnstorageretentionmanager:going to retain 1 images with Txid >= 015/01/14 19:30:17 INFO util. Exitutil:exiting with status 015/01/14 19:30:17 INFO namenode. Namenode:shutdown_msg:/************************************************************shutdown_msg:shutting down NameNode at ubuntu/60.191.124.254************************************************************/2. Start HadoopHadoop/sbin start-all.sh or start-dfs.sh start-yard.sh3. Verifying the InstallationSuch a complete distributed Hadoop clu
bin = BINaries (binary)/dev = devices/etc = Etcetera etcetera additional persons, extras, and others, etc./lib = LIBrary/proc = PROCesses/sbin = Superuser BINaries/tmp = Temporary/usr = Unix Shared Resources/var = VARiable?FIFO = First in, first outGRUB = GRand Unified BootloaderIFS = Internal Field seperatorsLILO = LInux LOaderMySQL = My is the first name of the author's daughter, SQL = structured Query Languagephp = Personal Home Page Tools = PHP hy
multiple versions underneath your warehouse, XXX is the name of that folder.@project_p = RW* =Note: The above information indicates that only the Project_p user group has read and write access to the root directory. R indicates that the directory has Read permissions, W indicates that the directory has write permissions, and RW indicates that the directory has read and write permissions. The last line of * = indicates that no one else is allowed to access this directory except for the user grou
. Strong>a . create INDEX idx on test USING Gin (to_tsvector (' Japanese ', name ); solution Explanation: Test: Database table name Japanese: Japanese encoding Name: Database table column name Strong>b . select * FROM Test WHERE to_tsvector (' Japanese ', name) @@ to_tsquery (' Japanese ', Web_query (' strong> ') 5. According to the installation process encountered special problems, can
files with a larger footprint in the/var/lib directory and sort in descending order650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M00/86/60/wKioL1e9VDzTDw1IAAAywgTebP4284.png-wh_500x0-wm_3 -wmp_4-s_3024368163.png "title=" qq picture 20160824160039.png "alt=" Wkiol1e9vdztdw1iaaaywgtebp4284.png-wh_50 "/>5 found the system disk occupies a file, find a strange directory file, you can search the Web for the file is useful, whether it can be deleted. However, usually non-/boot/bin/etc/lib/lib
University of Posts and Telecommunications s1b.time.edu.cn Tsinghua University s1c.time.edu.cn Beijing University s1d.time.edu.cn Southeast College S1E.T ime.edu.cn Tsinghua University s2a.time.edu.cn Tsinghua University s2b.time.edu.cn Tsinghua University s2c.time.edu.cn Beijing posts and Telecommunications s2d.time.edu.cn Southwest Network Center S2e.time.ed u.cn Northwest Network Center s2f.time.edu.cn Northeast Area Network Center s2g.time.edu.cn East China South Area Network Center s2h.t
When viewing process information through the PS and top commands, you can only find the relative path, the details of the process not found, such as the absolute path. At this point, we need to see the process details in the following ways: Linux when starting a process, the system willcreate a PID-named folder under/proc, where there will be information about our process, including a file named EXE that records the absolute path, can be viewed thro
1. First check the memory usage with the free tool:This is my Linux always data
Mem:
4046824
763620
3283204
9004
10284
61560
-/+buffers/cache:
691776
3355048
Total
Used
Free
Shared
Buffers
Cached
Can seeTo achieve the purpose of releasing the cache, we first need to understand the key configuration f
Include/asm/io.h#define OUTB (Value,port) __asm__ ("Outb%%al,%%dx":: "A" (value), "D" (port))//macro definition OUTB with assembly implements write value at port address ports value// The register used is AL, a byte length, and port ports uses a 2byte length address to mark the Register, note that the register here uses a # define INB (port) ({unsigned char _v; __asm__ volatile ("inb %%dx,%%al ":" =a "(_v):" D "(port); _v; })//Here INB is read into a byte-length data at port ports. The read-in d
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