Nicholas DiPiazza commented on TIKA-2575:

This sentence is the kicker

> However, this may not prevent cases where we're currently loading large 
>chunks of the document into memory before parsing.

In our code we have a "output-to-input-bytes ratio" where we kill if > a 
threshold, say 200% of the size is a reasonable value.

Yet the thread in this snapshot 


Note the dominating thread is using 500 MB! Thus the crash. 


> Provide a way to abort tika parses when tika input stream buffer grows passed 
> a certain threshold
> -------------------------------------------------------------------------------------------------
>                 Key: TIKA-2575
>                 URL: https://issues.apache.org/jira/browse/TIKA-2575
>             Project: Tika
>          Issue Type: Bug
>          Components: parser
>            Reporter: Nicholas DiPiazza
>            Priority: Major
> Sometimes, for example, you use tika to parse an XLS file that isn't really 
> that big, maybe 60 MB. and suddenly the JVM heap size taken is >800Mb which 
> causes an OOM in my case.
> Can we make an "abort threshold" where the tika parse will halt if parse 
> output bytes exceeds this value?
> Or it is possible for users to already do this themselves by watching the 
> input stream as it grows somehow?

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