How to limit number of workers in react native packager (android)(gradle)? -

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building android react-native project using react.gradle on circleci runs out of max 4gb memory. 1 of issues leading memory pressure 30+ node workers spinned packager each taking 80mb. see below sample output. looking through packager code it's not obvious me how control number. not option available through react-native bundle command.

pid rss %cpu command 14799 60988 5.0 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14804 58696 4.2 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14709 58036 4.1 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14814 57832 4.4 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14764 57792 4.3 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14789 57720 4.2 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14734 57700 4.2 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14688 57576 4.2 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14809 57544 4.2 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14724 57504 4.1 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14719 57284 4.0 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js 14694 57260 4.0 /home/ubuntu/nvm/versions/node/v5.0.0/bin/node /home/ubuntu/mobile_android_circleci/mobile/node_modules/react-native/node_modules/worker-farm/lib/child/index.js ... + many more rows

looks have wait next release. limit number of workers added in this commit.


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