[NAS-2554] Add precomputed checksum to allow higher upload throughput to the checksum replica Created: 15/Sep/16  Updated: 01/Nov/16  Resolved: 01/Nov/16

Status: Resolved
Project: NetarchiveSuite
Component/s: Archive
Affects Version/s: None
Fix Version/s: 5.2

Type: Improvement Priority: Major
Reporter: Søren Vejrup Carlsen (Inactive) Assignee: Søren Vejrup Carlsen (Inactive)
Resolution: Fixed  
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Sprint: NAS 5.2
Verification:

To use a precomputed checksum on the checksum replica
Add this setting on settings_ChecksumFileApplication.xml

<settings>
<archive>
<checksum>
<usePrecomputedChecksumDuringUpload>true</usePrecomputedChecksumDuringUpload>
</checksum>

 Description   

Add precomputed checksum to allow higher upload throughput to the checksum replica.

Upload to the checksum-replica seems often to be a bottleneck

 Comments   
Comment by Søren Vejrup Carlsen (Inactive) [ 01/Nov/16 ]

This has now been tested successfully by TLR

Comment by Søren Vejrup Carlsen (Inactive) [ 16/Sep/16 ]

Now tested in Netarkivets test environment, both usePrecomputedChecksumDuringUpload= false (the default)
and usePrecomputedChecksumDuringUpload set to true. Note that this setting only needs to be set for the ChecksumFileApplication

Comment by Søren Vejrup Carlsen (Inactive) [ 15/Sep/16 ]

This is now ready for testing.
It is disabled by default. So to enable this
set 

settings.archive.checksum.usePrecomputedChecksumDuringUpload

to true in the ChecksumReplicaServer application

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