Databases
StackOverflow2013
Postsdbo
POReplay a file-based data stream
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POReplay a file-based data stream
    primarykey
    data
    text
    <p>I have a live stream of data based on files in different formats. Data comes over the network and is written to files in certain subdirectories in a directory hierarchy. From there it is picked up and processed further. I would like to replay e.g. one day of this data stream for testing and simulation purposes. I could duplicate the data stream for one day to a second machine and „record“ it this way, by just letting the files pile up without processing or moving them.</p> <p>I need something simple like a Perl script which takes a base directory, looks at all contained files in subdirectories and their creation time and then copies the files at the same time of the day to a different base directory.</p> <p>Simple example: I have files <code>a/file.1</code> 2012-03-28 15:00, <code>b/file.2</code> 2012-03-28 09:00, <code>c/file.3</code> 2012-03-28 12:00. If I run the script/program on 2012-03-29 at 08:00 it should sleep until 09:00, copy <code>b/file.2</code> to <code>../target_dir/b/file.2</code>, then sleep until 12:00, copy <code>c/file.3</code> to <code>../target_dir/c/file.3</code>, then sleep until 15:00 and copy <code>a/file.1</code> to <code>../target_dir/a/file.1</code>.</p> <p><strong>Does a tool like this already exist?</strong> It seems I’m missing the right search keywords to find it.</p> <p>The environment is Linux, command line preferred. For one day it would be thousands of files with a few GB in total. The timing does not have to be ultra-precise. Second resolution would be good, minute resolution would be sufficient.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. UShfs
    1. UShfs
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COwhat about `find ... -exec ...`?
      singulars
      1. POReplay a file-based data stream
      1. USkev
    2. COThe timing is the important part. I have updated the question with an example.
      singulars
      1. POReplay a file-based data stream
      1. UShfs
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload