mrambacher ab7f7c9e49 Allow WAL dir to change with db dir (#8582) ... Summary: Prior to this change, the "wal_dir" DBOption would always be set (defaults to dbname) when the DBOptions were sanitized. Because of this setitng in the options file, it was not possible to rename/relocate a database directory after it had been created and use the existing options file. After this change, the "wal_dir" option is only set under specific circumstances. Methods were added to the ImmutableDBOptions class to see if it is set and if it is set to something other than the dbname. Additionally, a method was added to retrieve the effective value of the WAL dir (either the option or the dbname/path). Tests were added to the core and ldb to test that a database could be created and renamed without issue. Additional tests for various permutations of wal_dir were also added. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8582 Reviewed By: pdillinger, autopear Differential Revision: D29881122 Pulled By: mrambacher fbshipit-source-id: 67d3d033dc8813d59917b0a3fba2550c0efd6dfb		2021-07-30 12:16:44 -07:00
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options_util.cc
options_util_test.cc	Allow WAL dir to change with db dir (#8582)	2021-07-30 12:16:44 -07:00