http://code.activestate.com/recipes/tags/monitor-database/2014-05-30T01:10:53-07:00ActiveState Code Recipes2014-05-30T01:10:53-07:00Alfehttp://code.activestate.com/recipes/users/4182236/http://code.activestate.com/recipes/578882-monitor-progress-of-file-descriptors-of-another-pr/

<p style="color: grey"> Python recipe 578882 by <a href="/recipes/users/4182236/">Alfe</a> (<a href="/recipes/tags/file_descriptor/">file_descriptor</a>, <a href="/recipes/tags/monitor/">monitor</a>, <a href="/recipes/tags/prediction/">prediction</a>, <a href="/recipes/tags/proc/">proc</a>, <a href="/recipes/tags/process/">process</a>, <a href="/recipes/tags/progress/">progress</a>, <a href="/recipes/tags/watch/">watch</a>). </p> <p>This tool (inspired by azat@stackoverflow, see <a href="http://stackoverflow.com/a/16082562/1281485" rel="nofollow">http://stackoverflow.com/a/16082562/1281485</a>) allows to watch the progress of the file descriptors of another process. This can be used, for example, if you transfer a file to another host and the transferring program does not show any progress indication itself. Instead of waiting blindly until the routine is done, with this tool you can use Linux's proc file system to monitor the progress of the other process while it walks through the file.</p> <p>The tool continuously monitors the position in and the size of the files the given process's file descriptors point to. For growing (or shrinking, but that's very unusual) files, a time when it was (or will be) empty is computed ("emptyTime"), for moving file descriptors (the typical case), the time when it started at position 0 ("startTime"), the time when it will reach the current size of the file ("reachTime") and when it will meet with the end of a growing (or shrinking) file is computed ("meetTime").</p> <p>For fixed-size files the meetTime will be the same as the reachTime of course. The meetTime only makes sense in case a file is growing and at the same time read (e. g. when a movie is downloaded to a file by one process and converted by a different process; using this tool can tell you when the converter process might run dry on the input because the download wasn't fast enough, and in this case you maybe can pause the converter to prevent this situation).</p> <p>The tool is designed as a library; the display of the information is independent from the gathering of the data. Please feel free to create more fancy displays, add percentage output etc.</p>

2014-04-04T15:54:03-07:00Giampaolo Rodolàhttp://code.activestate.com/recipes/users/4178764/http://code.activestate.com/recipes/577968-log-watcher-tail-f-log/

<p style="color: grey"> Python recipe 577968 by <a href="/recipes/users/4178764/">Giampaolo Rodolà</a> (<a href="/recipes/tags/color/">color</a>, <a href="/recipes/tags/log/">log</a>, <a href="/recipes/tags/logging/">logging</a>, <a href="/recipes/tags/monitor/">monitor</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/rotate/">rotate</a>, <a href="/recipes/tags/rotations/">rotations</a>, <a href="/recipes/tags/tail/">tail</a>). Revision 10. </p> <p>A python class which "watches" a directory and calls a callback(filename, lines) function every time one of the files being watched gets written, in real time.</p> <p>Practically speaking, this can be compared to <em>"tail -F *.log"</em> UNIX command, but instead of having lines printed to stdout a python function gets called.</p> <p>Similarly to tail, it takes care of "watching" new files which are created after initialization and "unwatching" those ones which are removed in the meantime. This means you'll be able to "follow" and support also rotating log files.</p> <p><strong>History</strong></p> <ul> <li>rev5 (2013-04-05): <ul> <li>sizehint parameter</li> </ul></li> <li>rev4 (2013-03-16): <ul> <li>python 3 support (also dropped support for python &lt;= 2.5)</li> <li>windows support</li> <li>unit tests</li> <li>main class can also be used as a context manager</li> </ul></li> <li>rev3 (2012-01-13): initial release</li> </ul>

2013-12-01T11:19:56-08:00Mike 'Fuzzy' Partinhttp://code.activestate.com/recipes/users/4179778/http://code.activestate.com/recipes/577933-distcc-top/

<p style="color: grey"> Python recipe 577933 by <a href="/recipes/users/4179778/">Mike 'Fuzzy' Partin</a> (<a href="/recipes/tags/color/">color</a>, <a href="/recipes/tags/curses/">curses</a>, <a href="/recipes/tags/distcc/">distcc</a>, <a href="/recipes/tags/distributed/">distributed</a>, <a href="/recipes/tags/monitor/">monitor</a>, <a href="/recipes/tags/pack/">pack</a>, <a href="/recipes/tags/struct/">struct</a>, <a href="/recipes/tags/top/">top</a>, <a href="/recipes/tags/unpack/">unpack</a>). Revision 3. </p> <p>A small recipe for a curses based, 'top'-like monitor for DistCC. I know there is already distccmon-text, but I don't like it, and much prefer this sytle of monitoring. Note that I don't keep hosts around in the list like distccmon-gui/gnome. The screen is drawn for exactly what is currently in state. The terminal size is respected at initialization time, however resize events aren't handled. There is color designation of job types.</p>

2010-09-21T07:37:38-07:00Denis Barmenkovhttp://code.activestate.com/recipes/users/57155/http://code.activestate.com/recipes/577398-tail-f-with-inode-monitor/

<p style="color: grey"> Python recipe 577398 by <a href="/recipes/users/57155/">Denis Barmenkov</a> (<a href="/recipes/tags/inode/">inode</a>, <a href="/recipes/tags/monitor/">monitor</a>, <a href="/recipes/tags/tail/">tail</a>). Revision 3. </p> <p>Sometimes tail -f launched for log file miss the point when program recreates log file. Script in this recipe monitors inode changes for specified file and restarts tail if needed.</p>

2009-05-14T02:23:53-07:00kjahdksadsahd ahdsahdandhttp://code.activestate.com/recipes/users/4170243/http://code.activestate.com/recipes/576752-monitor-standby/

<p style="color: grey"> C++ recipe 576752 by <a href="/recipes/users/4170243/">kjahdksadsahd ahdsahdand</a> (<a href="/recipes/tags/monitor/">monitor</a>, <a href="/recipes/tags/on_off/">on_off</a>). </p> <p>Monitor On/Off</p>