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Hadoop >> mail # user >> issure about output of "hdfs dfsadmin -metasave"

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issure about output of "hdfs dfsadmin -metasave"

i dump the info to a file use

# hdfs dfsadmin -metasave mysave
Created metasave file mysave in the log directory of namenode
# find /var -name 'mysave'

when i read the mysave file ,some fields in record confuse me

blk_-13468897528190974_20279 (replicas: l: 3 d: 0 c: 0 e: 0) : : :
for example,from the content "replicas: l: 3 d: 0 c: 0 e: 0",it seems some
kind of replicas status,but
i do not know exact means of "l d c e",anyone can help?