Issue Details (XML | Word | Printable)

Key: HADOOP-3310
Type: New Feature New Feature
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Tsz Wo (Nicholas), SZE
Reporter: Tsz Wo (Nicholas), SZE
Votes: 0
Watchers: 1
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Hadoop Common

Lease recovery for append

Created: 24/Apr/08 11:43 PM   Updated: 08/Jul/09 04:43 PM
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Component/s: None
Affects Version/s: None
Fix Version/s: 0.18.0

Time Tracking:
Not Specified

File Attachments:
  File Name Date Attached Attached By Size
Text File Licensed for inclusion in ASF works 3310_20080514.patch 2008-05-14 05:25 PM Tsz Wo (Nicholas), SZE 38 kB
Text File Licensed for inclusion in ASF works 3310_20080516b.patch 2008-05-16 10:38 PM Tsz Wo (Nicholas), SZE 49 kB
Text File Licensed for inclusion in ASF works 3310_20080516c.patch 2008-05-16 10:55 PM Tsz Wo (Nicholas), SZE 47 kB
Text File Licensed for inclusion in ASF works 3310_20080519.patch 2008-05-19 08:49 PM Tsz Wo (Nicholas), SZE 51 kB
Text File Licensed for inclusion in ASF works 3310_20080519b.patch 2008-05-20 12:52 AM Tsz Wo (Nicholas), SZE 62 kB
Text File Licensed for inclusion in ASF works 3310_20080520.patch 2008-05-21 01:21 AM Tsz Wo (Nicholas), SZE 76 kB
Text File Licensed for inclusion in ASF works 3310_20080521.patch 2008-05-21 07:19 PM Tsz Wo (Nicholas), SZE 78 kB
Text File Licensed for inclusion in ASF works 3310_20080522b.patch 2008-05-22 09:20 PM Tsz Wo (Nicholas), SZE 81 kB
Text File Licensed for inclusion in ASF works 3310_20080522c.patch 2008-05-22 10:13 PM Tsz Wo (Nicholas), SZE 82 kB
Text File Licensed for inclusion in ASF works 3310_20080523.patch 2008-05-24 02:15 AM Tsz Wo (Nicholas), SZE 85 kB
Text File Licensed for inclusion in ASF works 3310_20080524_dhruba.patch 2008-05-24 09:22 AM dhruba borthakur 88 kB
Text File Licensed for inclusion in ASF works 3310_20080527.patch 2008-05-28 01:10 AM Tsz Wo (Nicholas), SZE 100 kB
Text File Licensed for inclusion in ASF works 3310_20080528.patch 2008-05-28 08:21 PM Tsz Wo (Nicholas), SZE 102 kB
Text File Licensed for inclusion in ASF works 3310_20080528b.patch 2008-05-28 09:54 PM Tsz Wo (Nicholas), SZE 101 kB
Text File Licensed for inclusion in ASF works 3310_20080528c.patch 2008-05-29 12:50 AM Tsz Wo (Nicholas), SZE 104 kB
Text File Licensed for inclusion in ASF works 3310_20080529.patch 2008-05-29 08:00 AM dhruba borthakur 96 kB
Text File Licensed for inclusion in ASF works 3310_20080529b.patch 2008-05-29 06:19 PM dhruba borthakur 105 kB
Text File Licensed for inclusion in ASF works 3310_20080529c.patch 2008-05-29 10:07 PM Tsz Wo (Nicholas), SZE 108 kB
Issue Links:
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Hadoop Flags: Reviewed, Incompatible change
Release Note: Implemented Lease Recovery to sync the last bock of a file. Added ClientDatanodeProtocol for client trigging block recovery. Changed DatanodeProtocol to support block synchronization. Changed InterDatanodeProtocol to support block update.
Resolution Date: 02/Jun/08 06:46 PM


 Description  « Hide
In order to support file append, a GenerationStamp is associated with each block. Lease recovery will be performed when there is a possibility that the replicas of a block in a lease may have different GenerationStamp values.

For more details, see the documentation in HADOOP-1700.

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