eof

Hadoop MapReduce job I/O Exception due to premature EOF from inputStream

由 拈花ヽ惹草 提交于 2021-02-18 22:50:42
问题 I ran a MapReduce program using the command hadoop jar <jar> [mainClass] path/to/input path/to/output . However, my job was hanging at: INFO mapreduce.Job: map 100% reduce 29% . Much later, I terminated and checked the datanode log (I am running in pseudo-distributed mode). It contained the following exception: java.io.IOException: Premature EOF from inputStream at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:201) at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver

Hadoop MapReduce job I/O Exception due to premature EOF from inputStream

由 ☆樱花仙子☆ 提交于 2021-02-18 22:49:18
问题 I ran a MapReduce program using the command hadoop jar <jar> [mainClass] path/to/input path/to/output . However, my job was hanging at: INFO mapreduce.Job: map 100% reduce 29% . Much later, I terminated and checked the datanode log (I am running in pseudo-distributed mode). It contained the following exception: java.io.IOException: Premature EOF from inputStream at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:201) at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver

Why does an fread loop require an extra Ctrl+D to signal EOF with glibc?

由 感情迁移 提交于 2021-02-18 10:13:37
问题 Normally, to indicate EOF to a program attached to standard input on a Linux terminal, I need to press Ctrl+D once if I just pressed Enter, or twice otherwise. I noticed that the patch command is different, though. With it, I need to press Ctrl+D twice if I just pressed Enter, or three times otherwise. (Doing cat | patch instead doesn't have this oddity. Also, If I press Ctrl+D before typing any real input at all, it doesn't have this oddity.) Digging into patch 's source code, I traced this

How to read file in Java Script line by line from hardcoded path and name of the file?

由 女生的网名这么多〃 提交于 2021-02-08 12:09:42
问题 I would like to read file in Java Script. The best it would be to read line by line, but there is also possibility to read the whole file at once. Generally on the web there is quite a lot of implementations, but I would like to read a file in very simple way by entering, hardcoded path and file name in the Java Script code, not but any buttons or something like this. The pseudo code below: <!DOCTYPE html> <html> <body> <script type="text/javascript"> var file = FileReader("home/test.txt");/

Linux NASM detect EOF

由 蹲街弑〆低调 提交于 2021-02-07 13:17:27
问题 I'm trying to learn the basics asm on linux and I can't find a very good reference. The NASM docs seem to assume you already know masm... I found no examples in the documentation of the cmp (outside the Intel instruction reference). I'd written a program that reads a single byte from stdin and writes it to stdout. Below is my modification to try to detect EOF on stdin and exit when EOF is reached. The issue is it never exits. I just keeps printing the last char read from stdin. The issue is

Linux NASM detect EOF

由 老子叫甜甜 提交于 2021-02-07 13:12:55
问题 I'm trying to learn the basics asm on linux and I can't find a very good reference. The NASM docs seem to assume you already know masm... I found no examples in the documentation of the cmp (outside the Intel instruction reference). I'd written a program that reads a single byte from stdin and writes it to stdout. Below is my modification to try to detect EOF on stdin and exit when EOF is reached. The issue is it never exits. I just keeps printing the last char read from stdin. The issue is

*Might* an unsigned char be equal to EOF? [duplicate]

由 我们两清 提交于 2021-02-07 05:44:13
问题 This question already has answers here : Can sizeof(int) ever be 1 on a hosted implementation? (8 answers) Closed 5 years ago . When using fgetc to read the next character of a stream, you usually check that the end-of-file was not attained by if ((c = fgetc (stream)) != EOF) where c is of int type. Then, either the end-of-file has been attained and the condition will fail, or c shall be an unsigned char converted to int , which is expected to be different from EOF —for EOF is ensured to be

Creating a timeout function in Python with multiprocessing

由 半世苍凉 提交于 2021-01-28 13:35:42
问题 I'm trying to create a timeout function in Python 2.7.11 (on Windows) with the multiprocessing library. My basic goal is to return one value if the function times out and the actual value if it doesn't timeout. My approach is the following: from multiprocessing import Process, Manager def timeoutFunction(puzzleFileName, timeLimit): manager = Manager() returnVal = manager.list() # Create worker function def solveProblem(return_val): return_val[:] = doSomeWork(puzzleFileName) # doSomeWork()

Creating a timeout function in Python with multiprocessing

由 会有一股神秘感。 提交于 2021-01-28 13:34:50
问题 I'm trying to create a timeout function in Python 2.7.11 (on Windows) with the multiprocessing library. My basic goal is to return one value if the function times out and the actual value if it doesn't timeout. My approach is the following: from multiprocessing import Process, Manager def timeoutFunction(puzzleFileName, timeLimit): manager = Manager() returnVal = manager.list() # Create worker function def solveProblem(return_val): return_val[:] = doSomeWork(puzzleFileName) # doSomeWork()

Python 3: EOF when reading a line (Visual Studio Code)

由 纵饮孤独 提交于 2021-01-28 04:11:33
问题 I use visual studio code to program in Python, and whenever I try to take user input, Visual Studio Code throws me an "EOF when reading a line" at that specific line. However, this code works perfectly in command line and Python IDLE. Side note: Python 3: EOF when reading a line (Sublime Text 2 is angry) is possibly a related question, as the error I am facing seems quite similar, only I am receiving this error in VSC and not Sublime text 2. I think this might be because VSC has no valid way
订阅 eof