HADOOP-17964. Increase Java heap size for running Maven in Dockerfile of branch-2.10. (#3545)

dev-support/docker/Dockerfile

@@ -203,7 +203,7 @@ RUN curl -L -s -S \
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 # Avoid out of memory errors in builds
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-ENV MAVEN_OPTS -Xms256m -Xmx1536m -Dhttps.protocols=TLSv1.2 -Dhttps.cipherSuites=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
+ENV MAVEN_OPTS -Xms256m -Xmx2048m -XX:MaxPermSize=512m -Dhttps.protocols=TLSv1.2 -Dhttps.cipherSuites=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
 
 
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