Odd Characters in Log File

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I checked my cron log files today for a script that I have scheduled and the saw the following errors/characters:



000000000000000000000000000


It goes on like this for many more lines...



I should also mention that my script stopped running entirely when these odd characters appeared.



What happened?










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  • 4




    This can happen if one process has the file open for writing while another process truncates the file. The first process still writes to the position where the last write ended, the missing bytes are filled with zeroes.
    – choroba
    Oct 1 at 9:18










  • A related question is askubuntu.com/questions/356981 .
    – JdeBP
    Oct 1 at 11:52














up vote
1
down vote

favorite












I checked my cron log files today for a script that I have scheduled and the saw the following errors/characters:



000000000000000000000000000


It goes on like this for many more lines...



I should also mention that my script stopped running entirely when these odd characters appeared.



What happened?










share|improve this question



















  • 4




    This can happen if one process has the file open for writing while another process truncates the file. The first process still writes to the position where the last write ended, the missing bytes are filled with zeroes.
    – choroba
    Oct 1 at 9:18










  • A related question is askubuntu.com/questions/356981 .
    – JdeBP
    Oct 1 at 11:52












up vote
1
down vote

favorite









up vote
1
down vote

favorite











I checked my cron log files today for a script that I have scheduled and the saw the following errors/characters:



000000000000000000000000000


It goes on like this for many more lines...



I should also mention that my script stopped running entirely when these odd characters appeared.



What happened?










share|improve this question















I checked my cron log files today for a script that I have scheduled and the saw the following errors/characters:



000000000000000000000000000


It goes on like this for many more lines...



I should also mention that my script stopped running entirely when these odd characters appeared.



What happened?







cron logs null






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Oct 1 at 9:54









Jeff Schaller

33.6k851113




33.6k851113










asked Oct 1 at 9:07









arnpry

1105




1105







  • 4




    This can happen if one process has the file open for writing while another process truncates the file. The first process still writes to the position where the last write ended, the missing bytes are filled with zeroes.
    – choroba
    Oct 1 at 9:18










  • A related question is askubuntu.com/questions/356981 .
    – JdeBP
    Oct 1 at 11:52












  • 4




    This can happen if one process has the file open for writing while another process truncates the file. The first process still writes to the position where the last write ended, the missing bytes are filled with zeroes.
    – choroba
    Oct 1 at 9:18










  • A related question is askubuntu.com/questions/356981 .
    – JdeBP
    Oct 1 at 11:52







4




4




This can happen if one process has the file open for writing while another process truncates the file. The first process still writes to the position where the last write ended, the missing bytes are filled with zeroes.
– choroba
Oct 1 at 9:18




This can happen if one process has the file open for writing while another process truncates the file. The first process still writes to the position where the last write ended, the missing bytes are filled with zeroes.
– choroba
Oct 1 at 9:18












A related question is askubuntu.com/questions/356981 .
– JdeBP
Oct 1 at 11:52




A related question is askubuntu.com/questions/356981 .
– JdeBP
Oct 1 at 11:52















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