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IDProjectCategoryView StatusLast Update
0002640GNUnettestbed servicepublic2013-02-05 20:42
ReporterSree Harsha Totakura Assigned ToSree Harsha Totakura Due Date
PriorityhighSeverityfeatureReproducibilityN/A
Status closedResolutionfixed 
Product VersionGit master 
Target Version0.9.5aFixed in Version0.9.5a 
Summary0002640: Adaptive mechanism for determining number of parallel operations
DescriptionTestbed currently has a configurable static value for the number of operations that can be done in parallel. The problem with this is that when the system is adopting itself, some operations get timedout. This can be addressed with an adaptive mechanism where the system monitors the operation failures and thus can determine the number of parallel operations that it can cope up with.
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child of 0002700 closedSree Harsha Totakura Testbed fails to create connections reliably on the Infinicluster 

Activities

Sree Harsha Totakura

2012-11-16 23:24

updater   ~0006598

tcp like slow start implemented in SVN 25002

Sree Harsha Totakura

2012-11-28 14:38

updater   ~0006616

A simple failure-based feedback system is not enough. Failures of parallel operations cannot effectively determine the load on the system.

The feedback system should try to consider the average time taken for each operation and should decided the bound on parallelism.

Sree Harsha Totakura

2013-01-03 15:51

updater   ~0006761

SVN 25674 has adaptive parallelism. The decision to increase/decrease parallelism is based on calculating the deviation of the time take by an operation to complete.

Issue History

Date ModifiedUsernameFieldChange
2012-11-08 13:21Sree Harsha TotakuraNew Issue
2012-11-08 13:21Sree Harsha TotakuraStatusnew => assigned
2012-11-08 13:21Sree Harsha TotakuraAssigned To => Sree Harsha Totakura
2012-11-16 23:24Sree Harsha TotakuraNote Added: 0006598
2012-11-16 23:24Sree Harsha TotakuraStatusassigned => resolved
2012-11-16 23:24Sree Harsha TotakuraFixed in Version => 0.9.5
2012-11-16 23:24Sree Harsha TotakuraResolutionopen => fixed
2012-11-28 14:38Sree Harsha TotakuraNote Added: 0006616
2012-11-28 14:38Sree Harsha TotakuraStatusresolved => feedback
2012-11-28 14:38Sree Harsha TotakuraResolutionfixed => reopened
2012-11-28 14:39Sree Harsha TotakuraStatusfeedback => acknowledged
2012-11-28 14:39Sree Harsha TotakuraStatusacknowledged => assigned
2012-12-09 15:53Christian GrothoffFixed in Version0.9.5 =>
2012-12-09 15:53Christian GrothoffTarget Version0.9.5 => 0.10.1
2012-12-26 09:01Sree Harsha TotakuraRelationship addedchild of 0002700
2013-01-03 15:51Sree Harsha TotakuraNote Added: 0006761
2013-01-03 15:51Sree Harsha TotakuraStatusassigned => resolved
2013-01-03 15:51Sree Harsha TotakuraFixed in Version => 0.10.0
2013-01-03 15:51Sree Harsha TotakuraResolutionreopened => fixed
2013-01-03 23:59Christian GrothoffTarget Version0.10.1 => 0.10.0
2013-02-05 20:40Christian GrothoffFixed in Version0.10.0 => 0.9.5a
2013-02-05 20:40Christian GrothoffTarget Version0.10.0 => 0.9.5a
2013-02-05 20:42Christian GrothoffStatusresolved => closed