In memory allocation window of Code composer studio 6.1 I see 288 bytes of .CIO section. 
What is this segment and how I can remove it.
Linker file lnk_msp430f2619 has mention of .CIO section. But where I can make this zero byte section. 

 .bss        : {} &gt; RAM                  /* Global &amp; static vars              */
    .data       : {} &gt; RAM                  /* Global &amp; static vars              */
    .TI.noinit  : {} &gt; RAM                  /* For #pragma noinit                */
    .sysmem     : {} &gt; RAM                  /* Dynamic memory allocation area    */
    .stack      : {} &gt; RAM (HIGH)           /* Software system stack             */

#ifndef __LARGE_DATA_MODEL__
    .text       : {}&gt;&gt; FLASH                /* Code                              */
#else
    .text       : {}&gt;&gt; FLASH2 | FLASH       /* Code                              */
#endif
    .text:_isr  : {} &gt; FLASH                /* ISR Code space                    */
    .cinit      : {} &gt; FLASH                /* Initialization tables             */
#ifndef __LARGE_DATA_MODEL__
    .const      : {} &gt; FLASH                /* Constant data                     */
#else
    .const      : {} &gt; FLASH | FLASH2       /* Constant data                     */
#endif
    .cio        : {} &gt; RAM                  /* C I/O Buffer                      *


/


Question: hadoop complains about attempting to overwrite nonempty destination directory
Answer: This is a bug in Hadoop 2.6.0. It's been marked as fixed but it still happens occasionally (see: https://issues.apache.org/jira/browse/YARN-2624). 

Clearing out the appcache directory and restarting the YARN daemons should most likely fix this.