-Re: what is different between CorruptBlocks and MissingBlocks in NN FSNamesystem metrics?
Kihwal Lee 2013-11-18, 15:48
Missing blocks are the blocks with no valid replicas. I.e. data is not available. Corrupt blocks are the ones with at least one corrupt replica. They may have healthy live replicas that are not corrupt, which can be read by users or replicated by the system to replace the corrupt replicas. "Missing blocks" is a subset of "Corrupt blocks".
On Monday, November 18, 2013 3:07 AM, ch huang <[EMAIL PROTECTED]> wrote:
CorruptBlocks is "Number of blocks with corrupt replicas" ,but
the MissingBlocks is also from
this.neededReplications.getCorruptBlockSize() ,any difference?