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Thread: MediaCache Error

  1. #1
    Join Date
    Feb 2010
    Posts
    16

    Default MediaCache Error

    Hi!

    Sometimes I receive this Error Message. When I Restart the Wowza Service and the Cache is Purged, the Error disappears
    Possibly my MediaCache is full? But i think if the Cache is full, the Content should be received directly from the Storage?

    Any advises?

    Regards
    Robert

    ERROR server comment 2016-03-16 11:00:02 - - - - - 131854.229 - - - - - - - - ScheduledRandomAccessReader.bufferMiss[nas/cms-worldwide/online/2016-03-12_1815_sd_02_BINGO_____12167968__o__0001848867__s12178770___go_ORF2HD_18172303P_18495424P_Q6A.mp4]: Request failed: 511955410:4
    ERROR server comment 2016-03-16 11:00:02 - - - - - 131854.23 - - - - - - - - ScheduledRandomAccessReader.bufferMiss[nas/cms-worldwide/online/2016-03-12_1815_sd_02_BINGO_____12167968__o__0001848867__s12178770___go_ORF2HD_18172303P_18495424P_Q6A.mp4]: Request failed: 511955410:4
    WARN server comment 2016-03-16 11:00:02 - - - - - 131854.231 - - - - - - - nas/cms-worldwide/online/2016-03-12_1815_sd_02_BINGO_____12167968__o__0001848867__s12178770___go_ORF2HD_18172303P_18495424P_Q6A.mp4 MediaReaderH264.open[2]: java.lang.Exception: QTUtils.parseQTMediaContainer: Atom size is invalid: 0: java.lang.Exception: QTUtils.parseQTMediaContainer: Atom size is invalid: 0|at com.wowza.wms.mediareader.h264.util.QTUtils.parseQTMediaContainer(QTUtils.java:188)|at com.wowza.wms.mediareader.h264.MediaReaderH264.open(MediaReaderH264.java:321)|at com.wowza.wms.httpstreamer.model.HTTPStreamerAdapterBase.doesFileExist(HTTPStreamerAdapterBase.java: 1470)|at com.wowza.wms.httpstreamer.sanjosestreaming.httpstreamer.HTTPStreamerAdapterSanJoseStreamer.onPlayli st(HTTPStreamerAdapterSanJoseStreamer.java:860)|at com.wowza.wms.httpstreamer.sanjosestreaming.httpstreamer.HTTPStreamerAdapterSanJoseStreamer.serviceM sg(HTTPStreamerAdapterSanJoseStreamer.java:224)|
    ERROR server comment 2016-03-16 11:00:02 - - - - - 131854.369 - - - - - - - - MediaReaderH264SanJose.indexFile : java.lang.NullPointerException|at com.wowza.wms.httpstreamer.sanjosestreaming.file.MediaReaderH264SanJose.indexFile(MediaReaderH264San Jose.java:126)|at com.wowza.wms.httpstreamer.sanjosestreaming.file.HTTPStreamerSanJoseIndexItem.indexFile(HTTPStreamer SanJoseIndexItem.java:155)|at com.wowza.wms.httpstreamer.sanjosestreaming.file.HTTPStreamerSanJoseIndex.indexFile(HTTPStreamerSanJ oseIndex.java:326)|at com.wowza.wms.httpstreamer.sanjosestreaming.httpstreamer.HTTPStreamerSessionSanJose.getIndex(HTTPStr eamerSessionSanJose.java:155)|at com.wowza.wms.httpstreamer.sanjosestreaming.httpstreamer.HTTPStreamerAdapterSanJoseStreamer.onMediaF ile(HTTPStreamerAdapterSanJoseStreamer.java:1684)|

    Mediacache Settings are
    Maximum Size 180 gigabytes
    Write Rate 38 megabytes per second
    Write Rate Max Bucket Size 228 megabytes

  2. #2

    Default

    Hi,

    This seems to indicate that Wowza had problems reading a particular file. It could be corrupt and you can easily test that by copying it to your Wowza content dir and streaming it via a vod app. It could also indicate a problem with the file in Mediacache. I would certainly ensure that your Mediacache setup is optimal and you have enough capacity both in terms of disk IO and network throughput. If your platform is tuned and this is happening consistently then you may want to open a support ticket. If so, please include the detail requested and we will investigate it in more detail.

    Paul

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