how to dump via mysqldump hugh table into chunks
You can use primary key to specify to dump only id in those range 

mysqldump -u root -p db_name table_name --where='id  &lt; 10000' &gt; test1.sql
mysqldump -u root -p db_name table_name --where='id between 10000 and 20000' &gt; test2.sql
.....
 mysqldump -u root -p db_name table_name --where='id between 900000 and 1000000' &gt; test11.sql