Scenario: I 'tie' file 'myFile' to array '@tieArray'. I make modification to some records of '@tieArray'. Now before 'untie' the file I write each record of '@tieArray' to a new file 'tempFile'. In the end I untie '@tieArray'.

Now the contents of file 'myFile' & 'tempFile' should be same. But they are different. Some of the modifications I did on '@tieArray' are not reflected in 'tempFile'.

The problem is fixed when I increase the value of 'memory' parameter to 4Mib from its default value of 2Mib i.e

tie @tieArray, 'Tie::File', "myFile", memory => 4000000;

Can anybody suggest what is the problem in original scenario & how increasing the buffer size to 4Mib fixed this problem?

Note:

1)I am getting this problem when I tie huge files i.e 40 - 50 Mb. For small Files I don't get this kind of problem.

2) Modifications that I made to @tieArray are something like this:

$tieArray[100] .= "\n\nMy new inserted lines";

In reply to Query regarding 'Tie' file by Harman

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