fsc ssc

interval of 1 secondSC= Sparkcontext ("Local[2]","Networdcount") SSC= StreamingContext (SC, 1)#Create a DStream that would connect to Hostname:port, like localhost:9999Lines= Ssc.sockettextstream ("localhost", 9999)#Split each line into wordswords= Lines.flatmap (LambdaLine:line.split (" "))#Count Each word in each batchPairs = Words.map (LambdaWord: (Word, 1)) Wordcounts= Pairs.reducebykey (LambdaX, Y:x +y)#Print The first ten elements of each RDD g

Error:Exception in thread "main" java.lang.unsupportedclassversionerror:com/fsc/mina/client/transportservice:unsupported Major.minor version 52.0At Java.lang.ClassLoader.defineClass1 (Native Method)At Java.lang.ClassLoader.defineClass (classloader.java:800)At Java.security.SecureClassLoader.defineClass (secureclassloader.java:142)At Java.net.URLClassLoader.defineClass (urlclassloader.java:449)At java.net.urlclassloader.access$100 (urlclassloader.java:

tblspc: 7 (0x00000007) * Layer: 11 (Row) opc: 1 rci 0x00 Undotype: Regular undo Begin trans Last buffer split: No TempObject: No TablespaceUndo: No rdba: 0x00000000Ext idx: 0flg2: 0 * ----------------------------- uba: 0x018021ba. 0724e e ctl max scn: 0x0000. 00f5dc35 prv tx scn: 0x0000. 00f5dc3ftxn startscn: scn: 0x0000. 00f5e123 logon user: 91 prev brb: 25174454 prev bcl: 0KDO undorecord: KTB Redo op: 0x03 ver: 0x01 compatbit: 4 (Post-11) padding: 1op: ZKDO Opcode: URP row dependencies Disabl

I forgot who sent an injection point in the group. It seems that I am doing security testing on foreign countries, especially South Korea. At that time, it was a simple injection point: http: ship. iuk. ac. krsub5_4.php? Seq-1 + union + select + 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 get data: shiproot@localhost5.0 I forgot who sent an injection point in the group. It seems that I am doing security testing on foreign countries, especially South Korea. At that time it was a very s

transfer frame, and the 1th bit is "0" to indicate yesInformation Frame, 1th, 2 bits is "10" is the monitoring frame, "11" is no numbered frame. The SDLC prescribes a and C fields with a width of 8 bits. HDLC allows the A field to be any length and the C field to be 8-bit or 16-bit. The receiver must check the first bit of each address byte, if "0", followed by another address byte, and if "1", the byte is the last address byte. Similarly, if the first bit of the first byte of the control field

No dirty reads occur. User A has updated the table and has not submitted the table. User B queries the table. unsubmitted updates cannot appear in the user's query results. Instance simulation: the data in the test table is as follows: 1. User a query: SQL> select * from test;ID name--------------------12 B 2. User B: Update Test Set Name = 'C' where id = 1; not submitted 3. User A queries again: SQL> select * from test;ID name--------------------12 B The data block information is queried. Selec

connection and FSc = Nonedb = NoneFS = NoneInstance = NoneLocker = Threading. Lock ()@staticmethodDef _connect ():If not GFS.C:GFS.C = Connection ("Mongodb://admin:[email protected]:27017") # Establishing a MongoDB connectiongfs.db = gfs.c[' Maidiansha '] #连接到指定的数据库中Gfs.fs = Gridfs (gfs.db, collection= ' images ') #连接到具体的collection中#初始化def __init__ (self):Print "__init__"Gfs._connect ()print "Server info" + "*" * 40Print Gfs.c.server_info#获得单列对象@stati

does not update the block. Wait for the next time you use this block, update the status of block scn and itl.Block scn and itl are updated in two situations: (1) When delayedblock cleanout is not generated for slot reuse, the Scn/Fsc on blockscn and itl are updated based on the information in the Transactiontable.(2) When slot reuse is generated, the scn on the corresponding itl is updated to the control scn on the undo segment, and the block scn is

/rncRowdata [0] @ 8148----------Flag @ 8148: 0x2c (KDRHFL, KDRHFF, KDRHFH)Lock @ 8149: 0x01Cols @ 8150: 2BBED> d/v offset 8149 count 16File:/u01/app/oracle/oradata/PROD/tp01.dbf (5)Block: 20877 Offsets: 8149 to 8164 Dba: 0x0140518d-------------------------------------------------------010202c1 02096f72 61636c65 6462612c l ...... oracledba,Bb> modify/x 00 offset 8149File:/u01/app/oracle/oradata/PROD/tp01.dbf (5)Block: 20861 Offsets: 8159 to 8174 Dba: 0x0140517d------------------------------------

is executed, a JVM instance is generated. JVM has a noticeable latency at startup, so you can consider usingFSCCommand to replace the scalac command. When the FSC command is executed for the first time, it generates a daemon and binds the process to a port number on the local machine. All files to be compiled will be sent to the daemon through this port number. This process will not stop until you use the commandFSC-ShutdownStop manually. In this way

test: -----------session_A-------------SQL> select * from t for update;A-----a--------------session_B-------------SQL> select sid,type,lmode from v$lock where sid=159; SID TY LMODE---------- -- ---------- 159 TM 3 159 TX 6 For Oracle, when the select... for update, the get is the RX lock (lmode = 3). At the same time, through the TRC file, we can also find that the LCK is set to 1, that is, row-level locks are added at the same time.The TRC excerpt is as follow

Many systems only perform a flag when performing the delete operation, and do not perform operations that are as expensive as setting the disk to 0. The same is true for truncate. Only the segment header and I-node tables are changed. Truncate generates Redo, which is generated by modifying the data dictionary, rather than deleting the data. Truncate reduces hwm, releases extent, and regenerate data_object_id. It is faster than delete because it does not need to delete data at all. Redo only rec

Under what circumstances does Oracle select generate redo? 1 ') Fast block clearing or commit cleanout. When a transaction is committed, oracle marks the flag in the itl entry of the data block as U 2) sets the commit scn In the Scn/Fsc column. With two tags, you can tell the world that the transaction has been committed. However, the Lck flag of the itl entry and the lb (Lock bit information) of each data row header are not cleared. Oracle does not

Scala installation Steps File: www.scala-lang.org (bugs at https://issues.scala-lang.org/. We welcome contributions at Https://github.com/scala/scala) unzip the file and run the following command in the file's Bin directory　　 -Scala Scala Interactive interpreter-Scalac Scala Compiler-FSC Scala resident compiler-Scaladoc Scala API documentation Generator-Scalap Scala Classfile Decoder We recommend adding the full path

need to be compiled in a dependency graph must pass the following security checks so that the compilation process is incremental: Do not use pre/post compile scripts No build tool loaded from PATH (ex: resgen, compiler) Using a known-only compiler (CSC,VBC,FSC) In order to generate an executable application, you need the special configuration section in your Project.json file: {" compileroptions": { "emitentrypoint": True }} Options -O,--

Tablespace Configuration: Address Id Type Content PageSz ExtentSz Auto Prefetch BufID BufIDDisk FSC NumCntrs MaxStripe lastconsecpname 0x00002b8000064e400 0 DMS Regular 4096 4 Yes 4 1 1 Off 1 0 3 SYSCATSPACE 0x00002b8000064fb80 1 SMS 0000mp 4096 32 Yes 64 1 1 On 2 0 31 TEMPSPACE1 0x00002b800006534c0 2 DMS Large 4096 32 Yes 32 1 1 Off 1 0 31 USERSPACE1 0x00002B8106654C40 3 DMS Large 4096 4 Yes 4 1 1 Off 1 0 3 then oolspace 0x00002B81066563C0 4 DMS L

1. After downloading the Scala binary generic version from the official website http://www.scala-lang.org/download/, add the bin directory to the environment variable from the terminal command line to download the unpacked package:Export path=/users/iris/downloads/scala-2.11. 7/bin: $PATH2. InputScalaCan enter into the Scala environment programming;3. If you enter other commands in the terminal where the environment variable is configured:Scalac or: FSC