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Posted to dev@avro.apache.org by "Douglas Creager (JIRA)" <ji...@apache.org> on 2012/09/18 01:29:07 UTC
[jira] [Resolved] (AVRO-1161) Avro-C: Memory Leak in
avro_schema_record()
[ https://issues.apache.org/jira/browse/AVRO-1161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Douglas Creager resolved AVRO-1161.
-----------------------------------
Resolution: Fixed
Fix Version/s: 1.7.2
Merged into SVN
> Avro-C: Memory Leak in avro_schema_record()
> -------------------------------------------
>
> Key: AVRO-1161
> URL: https://issues.apache.org/jira/browse/AVRO-1161
> Project: Avro
> Issue Type: Bug
> Components: c
> Affects Versions: 1.7.1
> Reporter: Lucas Martin-King
> Labels: memory_leak
> Fix For: 1.7.2
>
> Attachments: 0001-AVRO-1161.-C-Fix-memory-leak-in-avro-append-cat-mod-.patch, 0001-AVRO-1161.-C-Fix-memory-leak-in-avro-append-cat-mod-.patch
>
>
> There seems to be a bug in the use of avro_schema_record() within the datafile reader. I'm currently investigating this myself, and can hopefully submit a patch soon, however I am wondering if there is anything I am forgetting to do when using the Avro API?
> Our program is opening and closing lots of log files, and Valgrind gives me this message:
> ==20151== 32,518 (48 direct, 32,470 indirect) bytes in 1 blocks are definitely lost in loss record 62 of 65
> ==20151== at 0x4C2BFCB: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==20151== by 0x4C2C27F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==20151== by 0x4E3D074: avro_default_allocator (allocation.c:36)
> ==20151== by 0x4E60F8C: avro_schema_record (schema.c:558)
> ==20151== by 0x4E61A5E: avro_schema_from_json_t (schema.c:856)
> ==20151== by 0x4E622E9: avro_schema_from_json_root (schema.c:1083)
> ==20151== by 0x4E624C9: avro_schema_from_json_length (schema.c:1127)
> ==20151== by 0x4E3FE92: file_read_header (datafile.c:314)
> ==20151== by 0x4E40796: avro_file_reader_fp (datafile.c:491)
> ==20151== by 0x4082D3: LogReader::LogReader(_IO_FILE*, char const*) (LogReader.cpp:32)
> ==20151== by 0x4066A3: main (main.cpp:206)
> A similar report can be reproduced when using avrocat on a single avro file.
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