db/pg_probackup
db/pg_probackup
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minor refactoring in restore.c to improve code readability

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This commit is contained in:
Anastasia 2019-08-07 13:23:17 +03:00
parent 23697fff67
commit 52bf25ccd2
1 changed files with 47 additions and 57 deletions
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104
src/restore.c
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@ -46,6 +46,50 @@ static parray *get_dbOid_exclude_list(pgBackup *backup, parray *files,
parray *datname_list, bool partial_restore_type);
static int pgCompareOid(const void *f1, const void *f2);
static void set_orphan_status(parray *backups, pgBackup *parent_backup);
/*
* Iterate over backup list to find all ancestors of the broken parent_backup
* and update their status to BACKUP_STATUS_ORPHAN
*/
static void
set_orphan_status(parray *backups, pgBackup *parent_backup)
{
/* chain is intact, but at least one parent is invalid */
char *parent_backup_id;
int j;
/* parent_backup_id is a human-readable backup ID */
parent_backup_id = base36enc_dup(parent_backup->start_time);
for (j = 0; j < parray_num(backups); j++)
{
pgBackup *backup = (pgBackup *) parray_get(backups, j);
if (is_parent(parent_backup->start_time, backup, false))
{
if (backup->status == BACKUP_STATUS_OK ||
backup->status == BACKUP_STATUS_DONE)
{
write_backup_status(backup, BACKUP_STATUS_ORPHAN);
elog(WARNING,
"Backup %s is orphaned because his parent %s has status: %s",
base36enc(backup->start_time),
parent_backup_id,
status2str(parent_backup->status));
}
else
{
elog(WARNING, "Backup %s has parent %s with status: %s",
base36enc(backup->start_time), parent_backup_id,
status2str(parent_backup->status));
}
}
}
pg_free(parent_backup_id);
}
/*
* Entry point of pg_probackup RESTORE and VALIDATE subcommands.
@ -208,7 +252,7 @@ do_restore_or_validate(time_t target_backup_id, pgRecoveryTarget *rt,
* and orphinize all his descendants
*/
char *missing_backup_id;
time_t missing_backup_start_time;
time_t missing_backup_start_time;
missing_backup_start_time = tmp_backup->parent_backup;
missing_backup_id = base36enc_dup(tmp_backup->parent_backup);
@ -244,38 +288,7 @@ do_restore_or_validate(time_t target_backup_id, pgRecoveryTarget *rt,
else if (result == 1)
{
/* chain is intact, but at least one parent is invalid */
char *parent_backup_id;
/* parent_backup_id contain human-readable backup ID of oldest invalid backup */
parent_backup_id = base36enc_dup(tmp_backup->start_time);
for (j = 0; j < parray_num(backups); j++)
{
pgBackup *backup = (pgBackup *) parray_get(backups, j);
if (is_parent(tmp_backup->start_time, backup, false))
{
if (backup->status == BACKUP_STATUS_OK ||
backup->status == BACKUP_STATUS_DONE)
{
write_backup_status(backup, BACKUP_STATUS_ORPHAN);
elog(WARNING,
"Backup %s is orphaned because his parent %s has status: %s",
base36enc(backup->start_time),
parent_backup_id,
status2str(tmp_backup->status));
}
else
{
elog(WARNING, "Backup %s has parent %s with status: %s",
base36enc(backup->start_time), parent_backup_id,
status2str(tmp_backup->status));
}
}
}
pg_free(parent_backup_id);
set_orphan_status(backups, tmp_backup);
tmp_backup = find_parent_full_backup(dest_backup);
/* sanity */
@ -386,30 +399,7 @@ do_restore_or_validate(time_t target_backup_id, pgRecoveryTarget *rt,
}
/* Orphanize every OK descendant of corrupted backup */
else
{
char *corrupted_backup_id;
corrupted_backup_id = base36enc_dup(corrupted_backup->start_time);
for (j = 0; j < parray_num(backups); j++)
{
pgBackup *backup = (pgBackup *) parray_get(backups, j);
if (is_parent(corrupted_backup->start_time, backup, false))
{
if (backup->status == BACKUP_STATUS_OK ||
backup->status == BACKUP_STATUS_DONE)
{
write_backup_status(backup, BACKUP_STATUS_ORPHAN);
elog(WARNING, "Backup %s is orphaned because his parent %s has status: %s",
base36enc(backup->start_time),
corrupted_backup_id,
status2str(corrupted_backup->status));
}
}
}
free(corrupted_backup_id);
}
set_orphan_status(backups, corrupted_backup);
}
/*