I tried the line as you described--
innodb_data_file_path = /ssd/data/ibdata1:806578M; /mysql3/inno_db/data/ibdata2:390354M; /mysql4/inno_db/data/ibdata3:729522M;/mysql5/inno_db/data/ibdata4:370634M:autoextend
And it still resulted in failure to start.
Let me get you full log from the entire event.
I tried the line as you described--
innodb_ data_file_ path = /ssd/data/ ibdata1: 806578M; /mysql3/ inno_db/ data/ibdata2: 390354M; /mysql4/ inno_db/ data/ibdata3: 729522M; /mysql5/ inno_db/ data/ibdata4: 370634M: autoextend
And it still resulted in failure to start.
Let me get you full log from the entire event.