미디어 플레이어 문제를 일으키는 원격 서버와의 rsync

Question

Serviio를 DLNA 미디어 서버로 실행하는 우분투 서버가 있습니다.

서버가 수행하는 유일한 다른 작업은 원격 서버에서 새 미디어를 확인하는 것입니다. cron을 사용하여 매분마다 이 스크립트를 실행하고 있습니다.

#!/bin/bash
DestDir='/home/vince/media'
lockfile='/home/vince/cron/sync.lock'

if [ ! -e $lockfile ]; then
   trap "rm -f $lockfile; exit" INT TERM EXIT
   touch $lockfile
   nice -n 20 ionice -c 3 rsync -axvmP --rsh="ssh -c arcfour" --progress --delete --include='*/' --include='*.mkv' --include='*.mp4' --include='*.avi' --exclude='*' --log-file='/home/vince/log/sync' ***@***:/home/vince/media/ "$DestDir"
   rm $lockfile
   trap - INT TERM EXIT
   [ $? -eq 0 ] && logger 'RSYNC sync completed successfully' || logger 'RSYNC sync Failed'
else
   echo "script already running"
fi

보시다시피 저는 더 약한 암호, nice 및 ionice를 사용했지만 rsync가 예를 들어 멋진 6GB 파일을 발견하고 당시 미디어를 스트리밍하고 있다면 재생이 버퍼링되고 점프하게 됩니다.

이 스크립트를 원격 서버로 이동하고 데이터를 가져오는 대신 데이터를 내보내면 도움이 될까요? 아니면 아무런 차이가 없나요?

다른 제안은 없나요?

Answer 1

문제가 대역폭 중 하나라면 다음과 같은 rsync 옵션을 확인하세요.

   --bwlimit=KBPS
          This  option  allows  you  to specify a maximum transfer rate in
          kilobytes per second for the data the daemon sends.  The  client
          can still specify a smaller --bwlimit value, but their requested
          value will be rounded down if they try to exceed  it.   See  the
          client version of this option (above) for some extra details.

딸꾹질의 원인이 무엇인지에 따라 아마도 다음과 같습니다.

   -z, --compress
          With this option, rsync compresses the file data as it  is  sent
          to  the  destination  machine,  which reduces the amount of data
          being transmitted â something that is useful over a slow connecâ
          tion.

          Note  that  this  option  typically  achieves better compression
          ratios than can be achieved by using a compressing remote  shell
          or  a  compressing  transport  because it takes advantage of the
          implicit information in the matching data blocks  that  are  not
          explicitly sent over the connection.

          See the --skip-compress option for the default list of file sufâ
          fixes that will not be compressed.

   --compress-level=NUM
          Explicitly set the compression level  to  use  (see  --compress)
          instead  of  letting it default.  If NUM is non-zero, the --comâ
          press option is implied.

   --skip-compress=LIST
          Override the list of file suffixes that will not be  compressed.
          The  LIST  should be one or more file suffixes (without the dot)
          separated by slashes (/).

          You may specify an empty string to indicate that no file  should
          be skipped.

          Simple  character-class matching is supported: each must consist
          of a list of letters inside the square brackets (e.g. no special
          classes, such as â[:alpha:]â

          The  characters  asterisk (*) and question-mark (?) have no speâ
          cial meaning.

          Here's an example that specifies 6 suffixes to skip (since 1  of
          the 5 rules matches 2 suffixes):

              --skip-compress=gz/jpg/mp[34]/7z/bz2

          The default list of suffixes that will not be compressed is this
          (several of these are newly added for 3.0.0):

              gz/zip/z/rpm/deb/iso/bz2/t[gb]z/7z/mp[34]/mov/avi/ogg/jpg/jpeg

          This list will be replaced by your --skip-compress list  in  all
          but  one  situation:  a  copy  from a daemon rsync will add your
          skipped suffixes to its list of non-compressing files  (and  its
          list may be configured to a different default).