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Merge pull request #2149 from tapaswenipathak/ticket-2135 

Add comments to explain functions in ReplicationUtils.cpp
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Alex Miller 2020-01-24 16:35:11 -08:00 committed by GitHub
parent 2bc5b2cf8a 0fab0d1a25
commit d06d664ed7
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2 changed files with 15 additions and 3 deletions
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14
fdbrpc/ReplicationUtils.h
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@ -27,9 +27,10 @@
typedef std::string repTestType; typedef std::string repTestType;
//string value defining test type
extern repTestType convertToTestType(int iValue); extern repTestType convertToTestType(int iValue);
//converts integer value to a test type
extern int testReplication(); extern int testReplication();
@ -37,6 +38,12 @@ extern double ratePolicy(
Reference<LocalitySet> & localitySet, Reference<LocalitySet> & localitySet,
Reference<IReplicationPolicy> const& policy, Reference<IReplicationPolicy> const& policy,
unsigned int nSelectTests); unsigned int nSelectTests);
//returns the value for the rate policy
//given a localitySet, replication policy and number of selected tests, apply the
//policy and return the rating
//rating can be -1 there are no unique results failing while applying the replication
//policy, otherwise largest mode from the items per unique set of locaility entry
//are returned.
extern bool findBestPolicySet( extern bool findBestPolicySet(
std::vector<LocalityEntry>& bestResults, std::vector<LocalityEntry>& bestResults,
@ -45,6 +52,11 @@ extern bool findBestPolicySet(
unsigned int nMinItems, unsigned int nMinItems,
unsigned int nSelectTests, unsigned int nSelectTests,
unsigned int nPolicyTests); unsigned int nPolicyTests);
//returns the best policy set
//given locality set, replication policy, number of min items, number of select
//test, number of policy tests, find the best from locality set, including few
//random items, get the rate policy having test rate, best rate and returning
//the success state.
extern bool findBestUniquePolicySet( extern bool findBestUniquePolicySet(
std::vector<LocalityEntry>& bestResults, std::vector<LocalityEntry>& bestResults,