It seems that your Hadoop data directory is broken or your disk has problems.
Which version of Hadoop are you using?

On Friday, May 02, 2014 08:43:44 AM S.L wrote:
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I Conferencia Científica Internacional UCIENCIA 2014 en la UCI del 24 al 26 de abril de 2014, La Habana, Cuba. Ver http://uciencia.uci.cu
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