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SEARCH-2888: Expose tuning parameters for Merge Policy and Merge Scheduler SOLR processes.

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Cherry picked from d36a330
This commit is contained in:
Angel Borroy
2021-05-31 11:32:24 +02:00
parent 48683f9285
commit e5cb9dba5b
2 changed files with 30 additions and 4 deletions
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search-services/alfresco-search/src/main/resources/solr/instance/templates/rerank/conf/solrconfig.xml
+6
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@@ -196,6 +196,12 @@
can perform merges in the background using separate threads.
The SerialMergeScheduler (Lucene 2.2 default) does not.
-->
<mergePolicy class="org.apache.lucene.index.TieredMergePolicy">
<int name="maxMergedSegmentMB">${merge.policy.maxMergedSegmentMB:5120}</int>
<int name="maxMergeAtOnce">${merge.policy.maxMergeAtOnce:10}</int>
<int name="segmentsPerTier">${merge.policy.segmentsPerTier:10}</int>
</mergePolicy>
<mergeScheduler class="org.apache.lucene.index.ConcurrentMergeScheduler">
<int name="maxMergeCount">${merger.maxMergeCount:6}</int>
search-services/alfresco-search/src/main/resources/solr/instance/templates/rerank/conf/solrcore.properties
+24 -4
View File
@@ -194,10 +194,10 @@ alfresco.metadata.ignore.datatype.1=app:configurations
alfresco.metadata.skipDescendantDocsForSpecificAspects=false
#alfresco.metadata.ignore.aspect.0=
# If you are experimenting OOM errors, probably your Paths information is too large to be
# If you are experimenting OOM errors, probably your Paths information is too large to be
# recovered for node batches. You can change this property to "false" in order to get
# paths information only for single nodes. Be aware that when using "false", memory requirements
# are lower but also indexing performance is slower.
# are lower but also indexing performance is slower.
alfresco.metadata.getPathsInNodeBatches=true
# Date/Datetime fields only: if this property is set to true (default value) each date/datetime field
@@ -230,14 +230,34 @@ solr.request.content.compress=false
#
# When checking repo and index consistency, first transaction is compared in both Repository and Index repositories.
# In order to get that initial transaction from database, 0-2000 range for txnId should be enough, but this parameter
# can be used when initial transaction Id is greater than 2000.
# can be used when initial transaction Id is greater than 2000.
#
solr.initial.transaction.range=0-2000
#
# Merge Policy tuning
#
# Default is 5120 (5 GB)
# Increase this number for large deployments (40+ million indexed nodes with content)
merge.policy.maxMergedSegmentMB=5120
# Default is 10: use the same value for both properties
# Decrease these numbers in order to reduce the number of segments and improve searching performance
# for large deployments
merge.policy.maxMergeAtOnce=10
merge.policy.segmentsPerTier=10
# Default is 6
# Increment this number for large deployments
merger.maxMergeCount=6
# Default is 3, this number should be lower than the amount of CPUs in a dedicated server
# and always lower than maxMergeCount
# Increment this number for large deployments using your available CPU threads
merger.maxThreadCount=3
#
# Limit the maximum text size of transformed content sent to the index - in bytes
#
alfresco.contentStreamLimit=10000000
#Shard setup
shard.method=DB_ID
#END of solrcore
#END of solrcore