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https://issues.apache.org/jira/browse/HDFS-10369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon resolved HDFS-10369.
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Resolution: Invalid
You're mallocing a buffer of 5 bytes here, seems your C code is just broken.
> hdfsread crash when reading data reaches to 128M
> ------------------------------------------------
>
> Key: HDFS-10369
> URL: https://issues.apache.org/jira/browse/HDFS-10369
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fs
> Reporter: vince zhang
> Priority: Major
>
> see code below, it would crash after printf("hdfsGetDefaultBlockSize2:%d,
> ret:%d\n", hdfsGetDefaultBlockSize(fs), ret);
>
> hdfsFile read_file = hdfsOpenFile(fs, "/testpath", O_RDONLY, 0, 0, 1);
> int total = hdfsAvailable(fs, read_file);
> printf("Total:%d\n", total);
> char* buffer = (char*)malloc(sizeof(size+1) * sizeof(char));
> int ret = -1;
> int len = 0;
> ret = hdfsSeek(fs, read_file, 134152192);
> printf("hdfsGetDefaultBlockSize1:%d, ret:%d\n",
> hdfsGetDefaultBlockSize(fs), ret);
> ret = hdfsRead(fs, read_file, (void*)buffer, size);
> printf("hdfsGetDefaultBlockSize2:%d, ret:%d\n",
> hdfsGetDefaultBlockSize(fs), ret);
> ret = hdfsRead(fs, read_file, (void*)buffer, size);
> printf("hdfsGetDefaultBlockSize3:%d, ret:%d\n",
> hdfsGetDefaultBlockSize(fs), ret);
> return 0;
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