Search Performance Evalutation

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Introduction

In this section a number of varied queries submitted in the production infrastructure, along with the response times of the gCube system are recorded. The target is to evaluate the performance of the search functionality provided by D4science services.

When submitting a query from the D4science portal, the procedure that is followed until the first results are retrieved is the following:

  • The Application Support Layer constructs the query according to the SearchMaster Syntax
  • It communicates with IS, in order to retrieve the EPRs for the search master running instances
  • The query is submitted to the SearchMaster
  • SearchMaster finds and returns a ResultSet EPR
  • The results are retrieved


Available Resources

During the time the testing was performed, the available resources in the infrastructure were the following:


  • AATSR Products
    • EM Advanced Along-Track Scanning Radiometer (AATSR) Data Set: Daily Products
      • Number of records: 1320
    • EM Advanced Along-Track Scanning Radiometer (AATSR) Data Set: Monthly Products
      • Number of records: 46
    • EM Advanced Along-Track Scanning Radiometer (AATSR) Data Set: Products
      • Number of records: 18.032
    • EM Advanced Along-Track Scanning Radiometer (AATSR) Data Set: Yearly Products
      • Number of records: 5
  • Earth Images
    • EM ESA Earth Images
      • Number of records: 1270
  • Key Documents and Reports
    • EM ESA special issues Living Planet Programme and Earth Observation Handbook
      • Number of records: 4
    • EM Mediterranean Action Plan (MAP) Technical Reports
      • Number of records: 178
  • Meris Level-3 Products
    • EM MERIS Level-3 Chlorophyll in water
      • Number of records: 7
    • EM MERIS Level-3 Global Vegetation Index
      • Number of records: 7
  • Landsat7 Products
    • EM Landsat7
      • Number of records: 12
  • European Environment Agency Reports
    • European Environment Agency: Brochures
      • Number of records: 12
    • European Environment Agency: Corporate Documents
      • Number of records: 38
    • European Environment Agency: EEA Briefings
      • Number of records: 16
    • European Environment Agency: EEA Reports
      • Number of records: 38
    • European Environment Agency: Environmental Assessment Reports
      • Number of records: 12
    • European Environment Agency: Environmental Issue Reports
      • Number of records: 45
    • European Environment Agency: Environmental Monographs
      • Number of records: 5
    • European Environment Agency: Expert's Corners
      • Number of records: 3
    • European Environment Agency: Other Reports
      • Number of records: 90
    • European Environment Agency: State of the Environment Reports
      • Number of records: 7
    • European Environment Agency: Technical Reports
      • Number of records: 100
    • European Environment Agency: Topic Reports
      • Number of records: 100


Query Response Times Sum-up Table

Query Explanation (Physical Language) Query Submitted to SearchMaster (SearchMaster Syntax) Time Until Search Responds Time Until First Result is Retrieved
Search for the word "earth", anywhere, in EM ESA Earth Images collection, in eiDB schema and english language. retrievemetadata as 'eiDB' in 'ENGLISH' on (fulltextsearch by 'earth' in 'ENGLISH' on '94d02c10-f2eb-11dd-a6f4-add312924299') 3 seconds 4 seconds
Search for the word "europe", inside the title, in EM ESA Earth Images collection, in eiDB schema and english language. retrievemetadata as 'eiDB' in 'ENGLISH' on (fieldedsearch by 'title' contains 'europe' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'eiDB' 2 seconds 3 seconds
Search for the word "Atlantic", inside the abstract, in EM Advanced Along - Track Scanning Radiometer (AATSR) Data Set Products collection, in ISO19115 schema and english language. retrievemetadata as 'ISO19115' in 'ENGLISH' on (fieldedsearch by 'abstract' contains 'Atlantic' in 'ENGLISH' on 'f8fea990-00c5-11de-8e55-ae4f02e984c5' as 'ISO19115') 3 seconds 6 seconds
Search for the word "Atlantic", inside the abstract, in EM Advanced Along - Track Scanning Radiometer (AATSR) Data Set Products collection or the word "european", anywhere, in EM Advanced Along - Track Scanning Radiometer (AATSR) Data Set: Monthly Products collection, in ISO19115 schema and english language. Sort the results by title. sort 'ASC' by '//*[local-name()=\'title\']' on (retrievemetadata as 'ISO19115' in 'ENGLISH' on (merge on (fieldedsearch by 'abstract' contains 'Atlantic' in 'ENGLISH' on 'f8fea990-00c5-11de-8e55-ae4f02e984c5' as 'ISO19115') and (fulltextsearch by 'european' in 'ENGLISH' on '0057b970-1ed5-11de-8141-e3edd323bdf8') )) Never (SocketTimeOut Exception)
Search for the word "Atlantic", inside the abstract, in EM Advanced Along - Track Scanning Radiometer (AATSR) Data Set Products collection or the word "european", anywhere, in EM Advanced Along - Track Scanning Radiometer (AATSR) Data Set: Monthly Products collection, in ISO19115 schema and english language. retrievemetadata as 'ISO19115' in 'ENGLISH' on (merge on (fieldedsearch by 'abstract' contains 'Atlantic' in 'ENGLISH' on 'f8fea990-00c5-11de-8e55-ae4f02e984c5' as 'ISO19115') and (fulltextsearch by 'european' in 'ENGLISH' on '0057b970-1ed5-11de-8141-e3edd323bdf8') ) 11 seconds 14 seconds
Search for the word "initiative", inside the abstract, in all the collections of AATSR Products group, in ISO19115 schema and english language. merge on (retrievemetadata as 'ISO19115' in 'ENGLISH' on (fieldedsearch by 'abstract' contains 'initiative' in 'ENGLISH' on 'f8fea990-00c5-11de-8e55-ae4f02e984c5' as 'ISO19115')) and (retrievemetadata as 'ISO19115' in 'ENGLISH' on (fieldedsearch by 'abstract' contains 'initiative' in 'ENGLISH' on 'f519f550-00c5-11de-8e55-ae4f02e984c5' as 'ISO19115')) and (retrievemetadata as 'ISO19115' in 'ENGLISH' on (fieldedsearch by 'abstract' contains 'initiative' in 'ENGLISH' on '0bfd7c60-00c6-11de-8e55-ae4f02e984c5' as 'ISO19115')) and (retrievemetadata as 'ISO19115' in 'ENGLISH' on (fieldedsearch by 'abstract' contains 'initiative' in 'ENGLISH' on '1030ece0-00c6-11de-8e55-ae4f02e984c5' as 'ISO19115')) 7 seconds 8 seconds
Search for the word "satellite", inside the title, or the word "europe", inside the description, in EM ESA Earth Images collection, in es schema and english language. Sort the results by title. sort 'ASC' by '//*[local-name()=\'title\']' on (retrievemetadata as 'es' in 'ENGLISH' on (merge on (fieldedsearch by 'title' contains 'satellite' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es') and (fieldedsearch by 'description' contains 'europe' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es') )) 33 seconds 35 seconds
Search for the word "satellite", inside the title, or the word "europe", inside the description, in EM ESA Earth Images collection, in es schema and english language. retrievemetadata as 'es' in 'ENGLISH' on (merge on (fieldedsearch by 'title' contains 'satellite' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es') and (fieldedsearch by 'description' contains 'europe' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es') ) 5 seconds 26 seconds
Search for the word "Antarctica", inside the description, and the word "map", inside the description, in EM ESA Earth Images collection, in es schema and english language. retrievemetadata as 'es' in 'ENGLISH' on (join inner by 'DocID' on (fieldedsearch by 'description' contains 'Antarctica' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es') and (fieldedsearch by 'description' contains 'map' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es') ) 5 seconds 28 seconds
Search for the word "satellite", anywhere, inside any collection. fulltextsearch by 'satellite' in on 9 seconds 11 seconds
Search for the word "Accumulation", inside the title, and the word "transformation", inside the title, in EM Mediterranean Action Plan (MAP) Technical Reports collection, in es schema and english language. retrievemetadata as 'es' in 'ENGLISH' on (join inner by 'DocID' on (fieldedsearch by 'title' contains 'Accumulation' in 'ENGLISH' on '1ca21eb0-076d-11de-be1f-cda49fe94041' as 'es') and (fieldedsearch by 'title' contains 'transformation' in 'ENGLISH' on '1ca21eb0-076d-11de-be1f-cda49fe94041' as 'es') ) 4 seconds 6 seconds
Search for the word "Environment", inside the title, in EM Mediterranean Action Plan (MAP) Technical Reports collection, in dc schema and english language. Sort the results by publisher. sort 'ASC' by '//*[local-name()=\'publisher\']' on (retrievemetadata as 'dc' in 'ENGLISH' on (fieldedsearch by 'title' contains 'Environment' in 'ENGLISH' on '1ca21eb0-076d-11de-be1f-cda49fe94041' as 'dc')) 3 seconds 5 seconds
Search for the expression "e*", inside the title, in all the collections of EM Demo vre, in es schema and english language. merge on (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '1ca21eb0-076d-11de-be1f-cda49fe94041' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'f519f550-00c5-11de-8e55-ae4f02e984c5' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '0bfd7c60-00c6-11de-8e55-ae4f02e984c5' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'f8fea990-00c5-11de-8e55-ae4f02e984c5' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '1030ece0-00c6-11de-8e55-ae4f02e984c5' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '778b3e50-f2a6-11dd-8d14-904a5718339a' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'adab1920-f2a5-11dd-8d14-904a5718339a' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'd793c130-f91f-11dd-8e3c-ae4f02e984c5' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'e90a9f00-f920-11dd-8e3c-ae4f02e984c5' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '62c2a530-f2ec-11dd-8d16-904a5718339a' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '24ce2920-09a8-11de-8d6f-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'a1c36100-09aa-11de-8d70-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'd0e1b990-076c-11de-be1f-cda49fe94041' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'b1d74810-0769-11de-be1f-cda49fe94041' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '4c619c10-09cb-11de-8f05-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '6884de10-09cc-11de-8f05-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'dd7f83f0-09d1-11de-8f06-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'b7430090-09d1-11de-8f06-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '7a8f62a0-09c8-11de-8f05-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '2ee43fc0-09b3-11de-8d7d-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on '3a872600-09c0-11de-8f02-a19cf0b0d020' as 'es')) and (retrievemetadata as 'es' in 'ENGLISH' on (fieldedsearch by 'title' contains 'e*' in 'ENGLISH' on 'a52c31e0-09d3-11de-8f0c-a19cf0b0d020' as 'es')) 45 seconds 50 seconds
Search for the word "greece", or the word "envisat", anywhere, in every collection. fulltextsearch by 'greece' , 'envisat' in on 9 seconds 10 seconds

Query Response Times Sum-up Table v2 - SearchMaster readings (rel1.7)

Testing environment

VRE
/EM/GCM
Search GHN
node19.p.d4science.research-infrastructures.eu
log4j default level
INFO
RS EPR Cache
disabled
Readings procedure
Median of three readings, taken in a hot search status (not currently performing any reharvest or garbage collection)
Readings
Time until a result set endpoint reference is returned as response. Note that this does not mean that the actual data are generated.


Readings

Query No Planning Time in millis Execution Time in millis
1 1139
  • 369 Total
    • 65 FTIndex
    • 292 MMFactory)
2 1139
  • 369 Total
    • 65 FTIndex
    • 292 MMFactory)
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