Who is China's new leader?

One thing about China is that being a communist country, it is almost a tradition to line up behind the current leadership. Last month we reported that Chinese troops on the India border were involved in a crossfire skirmish, then ordered by President Xi Jinping to back of and retreat. Not only they did not retreat, but added more troops to site of the armed confrontation with India. Was this the first sign of trouble at the highest levels of the leadership? Xi has been using anti-corruption policy to crush opposition and consolidate power, something many party members are violently against. The South China Morning Post editorial indicated that things were "not going well" and that a recent meeting of high-level party officials in the Hebei seaside resort of Beidaihe was tumultuous. Were the party officials displeased by Xi anti-corruption stance, or was the Chinese defector "Topaz" the real reason Xi is facing the heat?