dingyichuan created HADOOP-9182:
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Summary: the buffer used in hdfsRead seems leaks when the thread
exits
Key: HADOOP-9182
URL: https://issues.apache.org/jira/browse/HADOOP-9182
Project: Hadoop Common
Issue Type: Bug
Components: filecache
Environment: Linux RHEP x64
Reporter: dingyichuan
I use multi-threads in my c++ program to download 3000 files in HDFS use
libhdfs. Every thread is created by "pthread_create" to download a file and
exit. We monitor the memory status when the program is running. It seems every
thread will create a buffer which size is specified by the buffersize parameter
in "hdfsOpenFile" function. But when the thread finish the task and exit, it
doesn't free the buffer. So our program will eventually abort by Java's "out of
memory" exception. I just don't know how to free the buffer or I use these
functions in wrong way. Thanks!
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