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Reduce the default min heap size and remove the default max heap size #2840

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Oct 15, 2021
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Reduce the default min heap size and remove the default max heap size #2840

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2 changes: 2 additions & 0 deletions fhir-server/liberty-config/configDropins/defaults/jvm.options
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
# Set a fixed, higher than default, initial heap size that could serve a moderate workload
-Xms768M
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11 changes: 6 additions & 5 deletions fhir-server/liberty-config/configDropins/disabled/jvm.options
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@@ -1,7 +1,8 @@
# Reduced heap size for constrained environments
# Set a fixed max heap size
-Xmx3072M

# Initial heap size (same as max so no reallocations will occur)
-Xms3072M
# Turn on verbose classloading
#-verbose:class

# Maximum heap size
-Xmx3072M
# Turn on verbose garbage collection
#-verbose:gc
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11 changes: 1 addition & 10 deletions fhir-server/liberty-config/jvm.options
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Expand Up @@ -14,13 +14,4 @@
-Dcom.ibm.jsse2.renegotiate=DISABLED

# Prevents Apache Xerces from overactively using the service loader to find a class
-Dorg.apache.xml.dtm.DTMManager=org.apache.xml.dtm.ref.DTMManagerDefault

# Initial heap size (same as max so no reallocations will occur)
-Xms4096M

# Maximum heap size
-Xmx4096M

# Uncomment to turn on verbose classloading
#-verbose:class
-Dorg.apache.xml.dtm.DTMManager=org.apache.xml.dtm.ref.DTMManagerDefault