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Volume data unavailable during TeraSort without disk failure

Question asked by vladimir_protsenko on Jun 6, 2018
Latest reply on Jun 13, 2018 by maprcommunity

In a small 5 node cluster with Mapr 6.0 I am consistently getting a volume_data_unavailable alarm on local mapred volumes on different hosts and io errors when running hadoop terasort. No disk failures happen and disk fsck check shows no errors on affected storage pools. What could cause such problem in MFS? Is it possible to recover from the corrupted volume without deleting the whole volume?