Android :: Writing To SD Card - Deleting Files On It - Number Of Files Relevant

Mar 19, 2009

I wrote an app that downloads web sites and all their assets (images/stylesheets) to "disk" and therefore stores lots of small files on the SD card.

Sometimes it fails to delete large amounts of files and afterward the file system is r/o. To analyze that behavior I tried to do the removal of the files by hand and then go from there. But that already failed.

localhost:~ mkamp$ adb -d shell mount [.. some mounts ..] /dev/block/mmcblk0p1 /sdcard vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1000,fmask=0711,dmask=0700,code­page=cp437,iocharset=iso8859-1,utf8 0 0 --> R/W

Last login: Wed Mar 18 19:41:49 on ttys005 localhost:~ mkamp$ adb -d shell rm /sdcard/newsrob/a* [.. minutes of silent deletes ..] rm failed for /sdcard/newsrob/a2aade03616c28b30_113.png, Read-only file system localhost:~ mkamp$

localhost:~ mkamp$ adb -d shell mount [.. some mounts ..] /dev/block/mmcblk0p1 /sdcard vfat ro,dirsync,nosuid,nodev,noexec,uid=1000,gid=1000,fmask=0711,dmask=0700,code­page=cp437,iocharset=iso8859-1,utf8 0 0 --> R/O now

The log contained nothing but the usual gc output and random WiFi status changed mumbo jumbo.

Anybody else seeing this behavior?

There were 6.500 files in that directory. Might that be the problem? I don't access the files with queries, I always have the exact name.

Android :: writing to SD card - deleting files on it - Number of files relevant


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