diff --git a/theodolite-benchmarks/uc1-beam-samza/Dockerfile b/theodolite-benchmarks/uc1-beam-samza/Dockerfile
index 4f8c274515a231688fc278a7cee40aa0ac36eed5..d8b6447e11a0131a771ae188215b8507b2e2e99b 100644
--- a/theodolite-benchmarks/uc1-beam-samza/Dockerfile
+++ b/theodolite-benchmarks/uc1-beam-samza/Dockerfile
@@ -3,5 +3,5 @@ FROM openjdk:11-slim
 ADD build/distributions/uc1-beam-samza.tar /
 ADD samza-standalone.properties /
 
-CMD /uc1-beam-samza/bin/uc1-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false --jobInstance=$HOSTNAME
+CMD /uc1-beam-samza/bin/uc1-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false
 
diff --git a/theodolite-benchmarks/uc2-beam-samza/Dockerfile b/theodolite-benchmarks/uc2-beam-samza/Dockerfile
index b4760893bd64fb1a0ab627afa5f49d7fc497c5c9..2edb7c18208f6b60e0b904c05037b6cf4654ee90 100644
--- a/theodolite-benchmarks/uc2-beam-samza/Dockerfile
+++ b/theodolite-benchmarks/uc2-beam-samza/Dockerfile
@@ -3,4 +3,4 @@ FROM openjdk:11-slim
 ADD build/distributions/uc2-beam-samza.tar /
 ADD samza-standalone.properties /
 
-CMD /uc2-beam-samza/bin/uc2-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false --jobInstance=$HOSTNAME
+CMD /uc2-beam-samza/bin/uc2-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false
diff --git a/theodolite-benchmarks/uc3-beam-samza/Dockerfile b/theodolite-benchmarks/uc3-beam-samza/Dockerfile
index 8cfd533a5b02789d56e76151c23c4b8176911b6b..4e8e9d999fc9ee35f6b7c35043e47b33f0950b3f 100644
--- a/theodolite-benchmarks/uc3-beam-samza/Dockerfile
+++ b/theodolite-benchmarks/uc3-beam-samza/Dockerfile
@@ -3,4 +3,4 @@ FROM openjdk:11-slim
 ADD build/distributions/uc3-beam-samza.tar /
 ADD samza-standalone.properties /
 
-CMD /uc3-beam-samza/bin/uc3-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false --jobInstance=$HOSTNAME
+CMD /uc3-beam-samza/bin/uc3-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false
diff --git a/theodolite-benchmarks/uc4-beam-samza/Dockerfile b/theodolite-benchmarks/uc4-beam-samza/Dockerfile
index eadb57ad9fc6c2a1f3ae3eceea93fe042319d1e7..cb6a1f5fdbd0e19feabeb948d869ac4be1681d36 100644
--- a/theodolite-benchmarks/uc4-beam-samza/Dockerfile
+++ b/theodolite-benchmarks/uc4-beam-samza/Dockerfile
@@ -3,4 +3,4 @@ FROM openjdk:11-slim
 ADD build/distributions/uc4-beam-samza.tar /
 ADD samza-standalone.properties /
 
-CMD /uc4-beam-samza/bin/uc4-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false --jobInstance=$HOSTNAME
+CMD /uc4-beam-samza/bin/uc4-beam-samza --configFactory=org.apache.samza.config.factories.PropertiesConfigFactory --configFilePath=samza-standalone.properties --samzaExecutionEnvironment=STANDALONE --maxSourceParallelism=$MAX_SOURCE_PARALLELISM --enableMetrics=false