f, err := os.OpenFile(filePath, os.O_WRONLY|os.O_SYNC, 0)
					if err != nil {
						t.Fatalf("Failed to open %s: %s\n", filePath, err)
					}
					f.WriteString("oops") // Will cause bitrot error
					f.Close()
					break
				}

			}

			rQuorum := len(errs) - z.serverPools[0].sets[0].defaultParityCount

			for i := range staleWriters {
				if staleWriters[i] == nil {
					continue
				}
				if !bytes.Equal(bitrotWriterSum(staleWriters[i]), bitrotWriterSum(writers[i])) {
					t.Errorf("Test %d: heal returned different bitrot checksums", i)
				}
			}
		}
	}

	if c.done != nil {
		xioutil.SafeClose(c.done)
		c.done = nil
	}
	return c.rc.Close()
}

// keepHTTPReqResponseAlive can be used to avoid timeouts with long storage
// operations, such as bitrot verification or data usage scanning.
// Every 10 seconds a space character is sent.
// keepHTTPReqResponseAlive will wait for the returned body to be read before starting the ticker.

				replication: replicationCfg,
			}

			item.heal.enabled = thisHash.modAlt(f.oldCache.Info.NextCycle/folder.objectHealProbDiv, f.healObjectSelect/folder.objectHealProbDiv) && globalIsErasure
			item.heal.bitrot = f.scanMode == madmin.HealDeepScan

			// if the drive belongs to an erasure set
			// that is already being healed, skip the
			// healing attempt on this drive.

	hr, err = er.healObject(healCtx, bucket, object, versionID, opts)
	if errors.Is(err, errFileCorrupt) && opts.ScanMode != madmin.HealDeepScan {
		// Instead of returning an error when a bitrot error is detected
		// during a normal heal scan, heal again with bitrot flag enabled.
		opts.ScanMode = madmin.HealDeepScan
		hr, err = er.healObject(healCtx, bucket, object, versionID, opts)
	}
	return hr, toObjectErr(err, bucket, object, versionID)

			Key:         config.StorageClassSubSys,
			Description: "define object level redundancy",
		}, config.HelpKV{
			Key:         config.HealSubSys,
			Description: "manage object healing frequency and bitrot verification checks",
		})
	}

	helpMap := map[string]config.HelpKVS{
		"":                          helpSubSys, // Help for all sub-systems.
		config.SiteSubSys:           config.SiteHelp,

	ErasureDist        []uint8           `json:"EcDist" msg:"EcDist"`                            // Erasure distribution
	BitrotChecksumAlgo ChecksumAlgo      `json:"CSumAlgo" msg:"CSumAlgo"`                        // Bitrot checksum algo
	PartNumbers        []int             `json:"PartNums" msg:"PartNums"`                        // Part Numbers
	PartETags          []string          `json:"PartETags" msg:"PartETags,allownil"`             // Part ETags

//
// If an EOF happens after reading some but not all the bytes,
// ReadFile returns ErrUnexpectedEOF.
//
// If the BitrotVerifier is not nil or not verified ReadFile
// tries to verify whether the disk has bitrot.
//
// Additionally ReadFile also starts reading from an offset. ReadFile
// semantics are same as io.ReadFull.

cuiweixie <******@****.***> 1664452800 +0800

  @BeforeExperiment
  protected void setUp() {
    BitSet bitSet = new BitSet();
    for (int i = 0; i < OLD_WHITESPACE_TABLE.length(); i++) {
      bitSet.set(OLD_WHITESPACE_TABLE.charAt(i));
    }
    bitSet.clear(0);
    bitSet.clear(1);
    matcher = useNew ? CharMatcher.whitespace() : OLD_WHITESPACE;
    teststring = newTestString(new Random(1), bitSet, percentMatching);
  }

  @Benchmark