upgrade from 2.2 no storage ids per volume correctly generates guid-based storage ids . test case for hdfs-7575 . concode_field_sep PlaceHolder placeHolder concode_field_sep void runLayoutUpgradeTest concode_elem_sep void testUpgradeFrom26PreservesStorageIDs concode_elem_sep void initStorageDirs concode_elem_sep void upgradeAndVerify concode_elem_sep void testUpgradeFrom22via26FixesStorageIDs
void function ( ) { runLayoutUpgradeTest ( GenericTestUtils . getMethodName ( ) , null ) ; }