MDEV-29909 : SST fails when table is defined with DATA DIRECTORY='/pa… #551
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…th/to' and datafile is larger than datadir space Problem is that default path for SST is datadir and if there is not enough space for all datafiles it fails. In this patch wsrep_sst_tmp_dir configuration parameter is introduced. User can now configure path where SST transfers datafiles in joiner while operation is running. Additionally, if available transfer size is compared to available disk space and if not necessary big error is produced. When transfer is completed MariaBackup will move datafiles to their correct locations. Current rules for wsrep_sst_tmp_dir * can be nullptr or empty and will not be used * must be existing path and directory or not used * may not be same as datadir or not used * if total SST payload available it should have enough available space * similar to current behaviour temporal .sst directory is created on path and this directory is removed after SST has finished
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…th/to' and datafile is larger than datadir space
Problem is that default path for SST is datadir and if there is not enough space for all datafiles it fails.
In this patch wsrep_sst_tmp_dir configuration parameter is introduced. User can now configure path where SST transfers datafiles in joiner while operation is running. Additionally, if available transfer size is compared to available disk space and if not necessary big error is produced. When transfer is completed MariaBackup will move datafiles to their correct locations.
Current rules for wsrep_sst_tmp_dir