Merge pull request #3748 from siggisim/fix-keepalives

Further tweaks to GitHub Actions networking keep-alive

.github/workflows/test-mixed-versions.yaml

@@ -56,6 +56,7 @@ jobs:
     #!   uses: mxschmitt/action-tmate@v3
     - name: RUN TESTS
       run: |
+        sudo sysctl -w net.ipv4.tcp_keepalive_time=60
         sudo ethtool -K eth0 tso off gso off gro off tx off rx off lro off
         bazelisk test //... \
           --config=rbe-${{ matrix.erlang_version }} \

.github/workflows/test.yaml

@@ -50,6 +50,7 @@ jobs:
     #!   uses: mxschmitt/action-tmate@v3
     - name: RUN TESTS
       run: |
+        sudo sysctl -w net.ipv4.tcp_keepalive_time=60
         sudo ethtool -K eth0 tso off gso off gro off tx off rx off lro off
         bazelisk test //... \
           --config=rbe-${{ matrix.erlang_version }} \