Re: [Boost-bugs] [Boost C++ Libraries] #11016: Boost file logging misbehaves when file system is full

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #11016: Boost file logging misbehaves when file system is full
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-02-23 04:44:10

#11016: Boost file logging misbehaves when file system is full
-------------------------------+----------------------
  Reporter:  michi@…           |      Owner:  andysem
      Type:  Bugs              |     Status:  reopened
 Milestone:  To Be Determined  |  Component:  log
   Version:  Boost 1.55.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+----------------------

Comment (by anonymous):

 Below is a stand-alone test case that shows the problem. This is with
 boost 1.57 with your patch applied.

 I create a 5 MB ram disk:
 {{{
 sudo mount -o size=5M -t tmpfs none /home/michi/tmp/ramdisk
 }}}
 Note that the code below hard-wires this path. Please adjust as necessary.

 When I run the code in a loop, I see the empty log files appearing once
 the file system fills up (one empty file per run).
 {{{
 while :; do ./a.out ; done
 }}}
 {{{
 int main()
 {
     namespace keywords = boost::log::keywords;
     namespace logging = boost::log;
     namespace sinks = boost::log::sinks;

     logging::sources::severity_channel_logger_mt<> logger;

     typedef
 logging::sinks::asynchronous_sink<logging::sinks::text_file_backend>
 FileSinkT;
     typedef boost::shared_ptr<FileSinkT> FileSinkPtr;

     FileSinkPtr file_sink = boost::make_shared<FileSinkT>(
                                                   keywords::file_name =
 "/home/michi/tmp/ramdisk/log-%N.log",
                                                   keywords::rotation_size
 = 1024 * 512);

 file_sink->locked_backend()->set_file_collector(sinks::file::make_collector(
                                                         keywords::target =
 "/home/michi/tmp/ramdisk",
                                                         keywords::max_size
 = 1024 * 1024 * 10));

     file_sink->locked_backend()->scan_for_files();

     file_sink->locked_backend()->auto_flush(true);
     logging::core::get()->add_sink(file_sink);

     for (int i = 0; i < 100000; ++i)
     {
         BOOST_LOG(logger) << "Hello";
     }
     std::this_thread::sleep_for(std::chrono::milliseconds(1000));
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11016#comment:21>
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