syncany-team team mailing list archive

[Bjorge Dijkstra <bjorge@xxxxxxx>]

I agree. The problem actually appears to be that, while processing of an
event is held off when the associated file is still changing, these
changes still generate new events that are also queued. So when a file
finally stops changing suddenly a whole bunch of queued events for that
file become ready for processing.

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https://bugs.launchpad.net/bugs/805210

Title:
  putting a larger file in synced folder generates large amount of
  Watcher events

Status in Syncany:
  Confirmed

Bug description:
  When I copy a somewhat larger file (e.g. a couple of megabytes) into
  the synchronized folder then this generates a very large amount of
  file watcher events and corresponding indexer updates.

  11-07-03 20:39:24 | vulcan     | BufferedWatcher      | BufWatchTimer      | INFO     : ENTRY_CREATE /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:24 | vulcan     | LocalWatcher         | BufWatchTimer      | INFO     : Watcher: Checking new/modified file /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:24 | vulcan     | LocalWatcher         | BufWatchTimer      | INFO     : Watcher: Checking new/modified file /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:24 | vulcan     | Indexer              | Indexer            | INFO     : Processing request org.syncany.index.requests.CheckIndexRequest@746ac18c
  11-07-03 20:39:24 | vulcan     | LocalWatcher         | BufWatchTimer      | INFO     : Watcher: Checking new/modified file /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:24 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : Indexer: Checking file /home/bjd/Public/CIMG2015.JPG ... 
  11-07-03 20:39:24 | vulcan     | LocalWatcher         | BufWatchTimer      | INFO     : Watcher: Checking new/modified file /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:24 | vulcan     | LocalWatcher         | BufWatchTimer      | INFO     : Watcher: Checking new/modified file /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:24 | vulcan     | LocalWatcher         | BufWatchTimer      | INFO     : Watcher: Checking new/modified file /home/bjd/Public/CIMG2015.JPG
  ... <repeated lots of times> ...

  11-07-03 20:39:25 | vulcan     | Indexer              | Indexer            | INFO     : Processing request org.syncany.index.requests.CheckIndexRequest@51d7aa64
  11-07-03 20:39:25 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : Indexer: Checking file /home/bjd/Public/CIMG2015.JPG ... 
  11-07-03 20:39:25 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : File found in DB. Same modified date, same size. Nothing to do!
  11-07-03 20:39:25 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : Checking file DONE: /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:25 | vulcan     | Indexer              | Indexer            | INFO     : Processing request org.syncany.index.requests.CheckIndexRequest@6d172f8f
  11-07-03 20:39:25 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : Indexer: Checking file /home/bjd/Public/CIMG2015.JPG ... 
  11-07-03 20:39:25 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : File found in DB. Same modified date, same size. Nothing to do!
  11-07-03 20:39:25 | vulcan     | CheckIndexRequest    | Indexer            | INFO     : Checking file DONE: /home/bjd/Public/CIMG2015.JPG
  11-07-03 20:39:25 | vulcan     | Indexer              | Indexer            | INFO     : Processing request org.syncany.index.requests.CheckIndexRequest@34ae19a
  ... <repeated lots of times> ...

  Moving parentKey.reset() from the BufferedWatcher worker thread to the
  end of processEvent() to hold of any new events until after processing
  seems to solve this (see attached patch).

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