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https://issues.apache.org/jira/browse/AVRO-1050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-1050:
-------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I committed this.
                
> Avro PHP consumes too much memory due to code in io.php (AvroStringIO 
> append_str)
> ---------------------------------------------------------------------------------
>
>                 Key: AVRO-1050
>                 URL: https://issues.apache.org/jira/browse/AVRO-1050
>             Project: Avro
>          Issue Type: Bug
>          Components: php
>    Affects Versions: 1.6.0, 1.6.1, 1.6.2, 1.6.3
>            Reporter: A B
>            Assignee: A B
>              Labels: patch
>             Fix For: 1.7.0
>
>         Attachments: AVRO-1050-2.diff, AVRO-1050.diff
>
>
> While attempting to encode large messages, our team found that the PHP 
> run-time would exceed its memory limit and die. Profiling and use of 
> memory_get_usage showed us that we were spending a lot of time in append_str 
> and that the PHP process grew after every call to this method, resulting in 
> the leak-like behavior that caused the process to grow and then crash. We 
> rewrote append_str to use the string concatenation operator instead of the 
> somewhat elaborate scheme in place today (str_split, followed by the copying 
> of one byte at a time from the latter array to the final string) and the 
> memory usage issues disappeared with no loss of functionality. We would like 
> to provide the patch to fix this issue.

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