Avro PHP consumes too much memory due to code in io.php (AvroStringIO
append_str)
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Key: AVRO-1050
URL: https://issues.apache.org/jira/browse/AVRO-1050
Project: Avro
Issue Type: Bug
Components: php
Affects Versions: 1.6.2
Reporter: A B
Fix For: 1.7.0
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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