https://bugs.openldap.org/show_bug.cgi?id=10021

Issue ID: 10021 Summary: Cannot insert data into wiredtiger backend Product: OpenLDAP Version: 2.6.4 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs@openldap.org Reporter: jailbird@fdf.net Target Milestone: ---

I have a test system running OpenLDAP 2.6.4 linked against WiredTiger 11.1.0 running on a RHEL9.1-based system. Running kernel is 6.1.16, filesystem is XFS.

back_wt.la was added to cn=module and a simple olcDatabase=wt was created like:

dn: olcDatabase=wt objectClass: olcDatabaseConfig objectClass: olcWtConfig olcDatabase: wt olcDbDirectory: /var/lib/ldap olcSuffix: dc=fdf,dc=net olcLimits: {0}dn.base="cn=root,dc=fdf,dc=net" time.soft=unlimited time.hard=u nlimited size.soft=unlimited size.hard=unlimited olcRootDN: cn=root,dc=fdf,dc=net olcWtConfig: create olcDbIndex: objectClass,uid,gidNumber,uidNumber pres,eq olcDbIndex: ou,cn,mail pres,eq,sub structuralObjectClass: olcWtConfig

I start slapd and it creates the database files correctly. I then go and try to create the container with a simple .ldif and ldapadd:

dn: dc=fdf,dc=net objectClass: dcObject objectClass: organization o: FDF dc: fdf

That generates:

[1677801597:758327][83158:0x55b4158fb640], file:dn2id.wt, WT_CURSOR.insert: [WT_VERB_DEFAULT][ERROR]: __wt_txn_id_check, 1339: write operations are not supported in read-committed or read-uncommitted transactions.: Operation not supported Mar 2 15:59:57 slapd[83158]: wt_dn2id_add: insert failed: Operation not supported (95)

That comes from WiredTiger @ https://github.com/wiredtiger/wiredtiger/blob/5a032be765b1ebd9bb789e837cd00c... but I don't seem to understand why it's happening on a simple add? Am I missing something obvious?