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Closes#1527 from yaooqinn/hadoc.
Closes#1527
249701b6 [Kent Yao] [DOC] Improve High Availability Guide
03244332 [Kent Yao] [DOC] Improve High Availability Guide
54c1cd9d [Kent Yao] [DOC] Improve High Availability Guide
6d8a0991 [Kent Yao] [DOC] Improve High Availability Guide
5b4dff3d [Kent Yao] [DOC] Improve High Availability Guide
Authored-by: Kent Yao <yao@apache.org>
Signed-off-by: Kent Yao <yao@apache.org>
c30d580686
