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Diffstat (limited to 'configdefinitions/src/vespa/vespa.config.search.dispatch.def')
| -rw-r--r-- | configdefinitions/src/vespa/vespa.config.search.dispatch.def | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/configdefinitions/src/vespa/vespa.config.search.dispatch.def b/configdefinitions/src/vespa/vespa.config.search.dispatch.def new file mode 100644 index 00000000000..aa40c317d75 --- /dev/null +++ b/configdefinitions/src/vespa/vespa.config.search.dispatch.def @@ -0,0 +1,73 @@ +# Copyright 2019 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. +# Configuration of dispatch from container nodes to search clusters + +namespace=vespa.config.search + +# The active docs a group must have as a % of the average active docs of all other groups, +# for that group to be included in queries +minActivedocsPercentage double default=97.0 + +# Minimum coverage for allowing a group to be considered for serving +minGroupCoverage double default=100 + +# Maximum number of nodes allowed to be down for group to be considered for serving +maxNodesDownPerGroup int default=0 + +# Distribution policy for group selection +distributionPolicy enum { ROUNDROBIN, ADAPTIVE } default=ADAPTIVE + +## Maximum number of hits that will be requested from a single node +## in this dataset. If not set, there is no limit. Using this option +## may help reduce network traffic when searching in datasets with big +## fan-out, but it will also result in incorrect and incomplete results; +## don't use it if you don't (really) mean it. +maxHitsPerNode int default=2147483647 + +## Probability for getting the K best hits (topK). +## A value of 1.0 will ask all N partitions for K hits. +## Any value between <0, 1> will use a Student T with 30 degrees freedom and compute a value Q that +## will give you the globally K best hits according to this formula with the desired probability. +## q = k/n + qT (p',30) x √(k × (1/n) × (1 − 1/n)) +## With a probability of 0.999 and K=200 and N=10 will give a Q of 38, meaning that you only need to fetch 19% compared to +## a setting of 1.0. This is a significant optimisation with with very little loss in presicion. +topKProbability double default=0.9999 + +# Is multi-level dispatch configured for this cluster +# Deprecated, will go away soon, NOOP +useMultilevelDispatch bool default=false + +# Dispatch only to local nodes. DEPRECATED: The container will automatically do this when it is appropriate. +useLocalNode bool default=false + +# Number of document copies +searchableCopies long default=1 + +# Minimum search coverage required before returning the results of a query +minSearchCoverage double default=100 + +# Minimum wait time for full coverage after minimum coverage is achieved, factored based on time left at minimum coverage +minWaitAfterCoverageFactor double default=0 + +# Maximum wait time for full coverage after minimum coverage is achieved, factored based on time left at minimum coverage +maxWaitAfterCoverageFactor double default=1 + +# Number of JRT transport threads +numJrtTransportThreads int default=8 + +# Number of JRT connections per backend node +numJrtConnectionsPerNode int default=8 + +# Number of seconds to spend warming up code to prevent JIT cold start issues. +warmuptime double default=0.1 + +# The unique key of a search node +node[].key int + +# The index of the group this search node belongs to +node[].group int default=0 + +# The host name of this search node +node[].host string + +# The rpc port of this search node +node[].port int |