drive with a capacity of only 10G.
Remember when you used to do Windows development, there is an API called SetEndOfFile, you can use the file internal cursor location to the end of the file, can be used to intercept or extend the file, this function is essentially the direct operation of the file partition table structure, Using it for file extension is not required to frequently populate files, Linux mu
There are several ways to import text files into an Oracle database, but if you import a text file that is too large, such as a 5g,10g text file, there are some ways to do it, such as the import text feature in Plsql developer, and if the text file is too large, not only is the import slow, The middle is also prone to error. At this time Sqlldr will be able to wo
/p10404530_112030_ Linx-x86-64_1of7.zip2.unzip command cannot decompress more than 2G files by looking for a file with a 7z program that can decompress more than 2G of compressed packetshttp://pkgs.repoforge.org/p7zip/this address to download 7zip packageFirst, check whether Linux is 32-bit or 64-bit with the FILE/BIN/LS command:[Email protected] tmp]# file/bin/ls/bin/ls:elf 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses
Retrofit 2.0-resumable download of large files and resumable downloadApiService
Write the API and execute the download interface function.
public interface ApiService { @Streaming @GET Observable
downloadFile(@Url String fileUrl);}
Because the url is variable@ URL annotation symbol to specify, which is officially recommended for large
HTTP Error 404.13-not FoundThe request filtering module is configured to reject requests that exceed the requested content length.The most probable cause:? Request filtering on the WEB server is configured to reject the request because the content length exceeds the configured value.Actions you can try:? Confirm the Configuration/system.webserver/security/requestfiltering/[email in the ApplicationHost.config or Web. config file Protected] settings.Detailed error message:ModuleRequestfilteringmod
When we encounter a large text file size, such as more than dozens of m or even hundreds of M several g of large files, with Notepad or other editors to open often can not succeed, because they all need to put the contents of the file in memory, then there will be memory overflow and open error, In this case we can use PHP's file read function file_get_contents (
the b2-b3 of the indentation. To (A1) =[1,2 ... 8] represents the entry parameters for each thread. A2 can be used internally by the thread to get the ingress parameters, and the thread can use A2 to get the computed results for all threads.B3: Queries the cursor, reads the result into memory, and returns it to the main thread.A4: Merges the calculated results of each thread sequentially.for ordered data, the binary method can be used to improve the performance of the query. For example, the da
line does not have a newline characterprintf ("Number of rows is%d\n", row);Rewind (FP); Back to file start location}int main (int argc, char *argv[]){FILE *FP;Double Data[n][l] = {0.0}; Two-dimensional arraysint Index[n] = {0};Two-dimensional array row subscriptDouble temp;int I, J;int count = 0; Counter, which records the floating-point numbers that have been read outif ((Fp=fopen (file_name, "rb") = = = NULL) {printf ("Please confirm file (%s) exi
When using RM to delete a large batch of files, it is possible to encounter the problem of "parameter column too Long" (Argument list too long). As shown below[Email protected] bdump]$ rm-v epps_q001_*-bash:/bin/rm:argument list too longSee how many of these files are in total, as shown below, with a total of 8,348 files
The php fseek function can be used to read large files,
The fseek function is the most common method for php to read large files. It does not need to read all the file content into the memory, but directly operates through pointers, so the efficiency is quite efficient. when using fseek to operate
The possible reason is that the listening log is too large (more than 4G). Stop listening, delete the listening log (need to delete 4 directories of the log), turn on monitoring, the connection is slow problem resolution. The Oracle 11g monitoring log directory location is as follows: Alert Log directory:%oracle_home%\diag\rdbms\%sid%\%sid%\alert,%oracle_home%\diag\tnslsnr\% machine name%\listenrt\alert Tr
when the database was run, ORACLEstill using the original file pointer to write operations, it is possible to write a nonexistent file causes hard disk space consumption. We can use the following methods:$tail -100 $ORACLE _base/admin/orasid/bdump/alert_orasid.log >/tmp/oracle_temp.log$CP/tmp/oracle_temp.log $ORACLE _base/admin/orasid/bdump/alert_orasid.log$RM/tmp/oracle_temp.logTruncate the log file.Listenerthe log file$ORACLE _home/network/log/listener.logrecorded the passageListenerthe netwo
I. Problem Overview:
Recently developed the function of uploading video files. The basic process has been completed, but an error will be reported when uploading files of more than 30 mb.
2. Ocean of information
I checked some information on the Internet, which is generally described below:
The steps are not cumbersome, but I did not find the
3. Looking back, the answer is in the dark
Requirement: A file contains several words, one for each line, requiring that the words in the file be sorted in dictionary order.
Analysis: Because the size of a file may exceed the memory size, it is unrealistic to want to read the entire file into memory at once and then sort it out. Of course, to deal with this problem can be merged: the large file split into several can be read into the memory of small files
! Emptyempty ($ status ['total']) {Echo json_encode ($ status );}Else {Echo (0 );}}?>
Session_start ();If (isset ($ _ GET ['progress _ key']) {$ Status = apc_fetch ('upload _ '. $ _ GET ['SS SS _ key']);If ($ status ['total']! = 0 ! Empty ($ status ['total']) {Echo json_encode ($ status );}Else {Echo (0 );}}?>
Json is used for data transmission.
$ Status object is an array with the following fields:
Total: total file size
Current: number of files
Problem Description:When a client server does not allow direct backup, it is often deployed by exporting database scripts-restoring the database,However, when the database export script is large, when you execute a script with Microsoft SQL Server Management Studio, you often experience "out of memory" prompts.Workaround:With Microsoft's own sqlcmd tool, you can import execution. Take the SQL Server 2008R version as an example:First step: Win+r type:c
In some scenarios, you need to present some log files on the Web that are some txt on the file server.When a log file is large, downloading logs can cause the page to get stuck for a long time, stay in the loading state, parse the log after downloading the log and generate the DOM, and a large amount of DOM rendering can cause the page to crash.So I want to optim
) {Console.WriteLine ("Finish"); return; } filestream.position=position; varByts =Newbyte[ +]; FileStream.Read (Byts,0, +); varstr =Encoding.UTF8.GetString (Byts); Console.WriteLine (str); } } }}OK, the program as shown, the first step, the absolute address of the input file, such as D:\a.csv, the second step, the location of the input text, such as 100000, the program by default read 1000 bytes for display. When the position is e
Exported a script file, will be nearly 900M, back to SQL Studio lost, reported a lack of memory, and then there is this article:Problem Description:When a client server does not allow direct backup, it is often deployed by exporting database scripts-restoring the database,However, when the database export script is large, when you execute a script with Microsoft SQL Server Management Studio, you often experience "out of memory" prompts.Workaround:With
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