parameters: filename:src/test/remu_propose2_test.cc gtest_enable_pre_vote:1 gtest_interval_check:0 gtest_node_num:3 steps: step1: start 3 nodes step2: wait for leader elect step3: check leader stable step4: propose 5 values step5: stop leader, then goto state0, still propose 5 values step6: start old leader step7: wait 5s, for log catch up step8: check log consistant step9: quit