Repairing a broken leveldb

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Hi,

while rebalancing a drive experienced read errors so I think leveldb was
corrupted. Unfortunately there's currently no second copy which is
up2date so I can forget this pg. Only one pg is affected (I moved all
other pg's away as they had active copies on another osd.

In "daily business" this osd is still running, but crashes when starting
backfilling. [1]. This pg holds meta-data for our cephfs so loosing data
would be painful.

Any ideas how to recover/repair leveldb or at least skip the broken
part? Thanks in advance.

  "up": [
        34,
        105],
  "acting": [
        9],
  "backfill_targets": [
        "34",
        "105"],
  "actingbackfill": [
        "9",
        "34",
        "105"],

[1] http://www.michael-metz.de/ceph-osd.9.log.gz

-- 
Kind regards
 Michael Metz-Martini

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