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Merge pull request #154 from samply/refactor/blazePerformanceTuning

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Optimize memory usage of Blaze
This commit is contained in:
Torben Brenner
2024-03-15 09:55:34 +01:00
committed by GitHub
parent 06033c8ea0 e1e523f1ac
commit a87e9b9284
4 changed files with 29 additions and 3 deletions
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22
lib/functions.sh
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@@ -155,6 +155,28 @@ setHostname() {
fi
}
# This function optimizes the usage of memory through blaze, according to the official performance tuning guide:
# https://github.com/samply/blaze/blob/master/docs/tuning-guide.md
# Short summary of the adjustments made:
# - set blaze memory cap to a quarter of the system memory
# - set db block cache size to a quarter of the system memory
# - limit resource count allowed in blaze to 1,25M per 4GB available system memory
optimizeBlazeMemoryUsage() {
if [ -z "$BLAZE_MEMORY_CAP" ]; then
system_memory_in_mb=$(free -m | grep 'Mem:' | awk '{print $2}');
export BLAZE_MEMORY_CAP=$(("$system_memory_in_mb"/4));
fi
if [ -z "$BLAZE_RESOURCE_CACHE_CAP" ]; then
available_system_memory_chuncks=$((BLAZE_MEMORY_CAP / 1000))
if [ $available_system_memory_chuncks -eq 0 ]; then
log WARN "Only ${BLAZE_MEMORY_CAP} system memory available for Blaze. If your Blaze stores more than 128000 fhir ressources it will run significally slower."
export BLAZE_RESOURCE_CACHE_CAP=128000;
else
export BLAZE_RESOURCE_CACHE_CAP=$((available_system_memory_chuncks * 312500))
fi
fi
}
# Takes 1) The Backup Directory Path 2) The name of the Service to be backuped
# Creates 3 Backups: 1) For the past seven days 2) For the current month and 3) for each calendar week
createEncryptedPostgresBackup(){