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s4-dsdb: cope with missing backlinks in rpmd handling

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if backlinks have not propogated correctly in a previous replication
this allows us to recover
This commit is contained in:
Andrew Tridgell 2011-06-07 10:44:48 +10:00
parent c6252c2e9d
commit 5d7ba30549
1 changed files with 10 additions and 1 deletions
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11
source4/dsdb/samdb/ldb_modules/repl_meta_data.c
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@ -254,7 +254,16 @@ static int replmd_process_backlink(struct ldb_module *module, struct la_backlink
msg->elements[0].flags |= LDB_FLAG_INTERNAL_DISABLE_SINGLE_VALUE_CHECK;
ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE, parent);
if (ret != LDB_SUCCESS) {
if (ret == LDB_ERR_NO_SUCH_ATTRIBUTE && !bl->active) {
/* we allow LDB_ERR_NO_SUCH_ATTRIBUTE as success to
cope with possible corruption where the backlink has
already been removed */
DEBUG(0,("WARNING: backlink from %s already removed from %s - %s\n",
ldb_dn_get_linearized(target_dn),
ldb_dn_get_linearized(source_dn),
ldb_errstring(ldb)));
ret = LDB_SUCCESS;
} else if (ret != LDB_SUCCESS) {
ldb_asprintf_errstring(ldb, "Failed to %s backlink from %s to %s - %s",
bl->active?"add":"remove",
ldb_dn_get_linearized(source_dn),