Bug #19980
closed
spurious "connection_read(9): no connection!" in /var/log/rudder/ldap/slapd.log
Added by Nicolas CHARLES about 3 years ago.
Updated almost 3 years ago.
Category:
Performance and scalability
Description
Sep 20 14:51:24 server rudder-slapd[7888]: connection_read(9): no connection!
Sep 20 14:51:57 server rudder-slapd[7888]: connection_read(20): no connection!
Sep 20 15:01:50 server rudder-slapd[7888]: connection_read(16): no connection!
Sep 20 15:01:51 server rudder-slapd[7888]: connection_read(15): no connection!
This happens mainly when there are no enough ldap connection in ldap.maxPoolSize
Impact seem mostly cosmetic, but it happens that it prevents a node from updating its inventory
inventory-processing - Error when trying to process report: Can't merge inventory report in LDAP directory, aborting; cause was: Exception when commiting inventory, abort.; cause was: BackendException: Error when doing action 'modify' with and LDIF change request: null; cause was: com.unboundid.ldap.sdk.LDAPException: A client-side timeout was encountered while waiting 30000ms for a response to modify request with message ID 108308 for entry 'nodeId=uuid,ou=Nodes,ou=Accepted Inventories,ou=Inventories,cn=rudder-configuration' from server localhost:389.
To reproduce: use too much LDAP
- API queries to get inventories/nodes
- API search on nodes
- API queries on compliance
- copy inventory in /var/rudder/incoming
- update node properties
all at once, massively parralel
with only 2 ldap connections and even more api calls, I get the
[2021-09-20 15:44:54] ERROR nodes.pending - Error when trying to accept node ea67550f-22a4-4ca6-843f-a1e1583ead7f. Rollbacking. <- Error when executing accept node process named accept_new_server:inventory <- Error when moving node with ID 'ea67550f-22a4-4ca6-843f-a1e1583ead7f' from 'pending' to 'accepted' <- BackendException: Error when doing action 'modify DN' with and LDIF change request: null; cause was: com.unboundid.ldap.sdk.LDAPException: A client-side timeout was encountered while waiting 30000ms for a response to modify DN request with message ID 11 for entry 'nodeId=ea67550f-22a4-4ca6-843f-a1e1583ead7f,ou=Nodes,ou=Pending Inventories,ou=Inventories,cn=rudder-configuration' from server localhost:389.
-> com.normation.ldap.sdk.RwLDAPConnection.$anonfun$move$2(LDAPConnection.scala:606)
-> com.normation.ldap.sdk.RwLDAPConnection.$anonfun$applyMod$1(LDAPConnection.scala:514
Workaroud: adding connexions allows the error to not happen anymore
- Status changed from New to In progress
- Assignee set to Nicolas CHARLES
- Status changed from In progress to Pending technical review
- Assignee changed from Nicolas CHARLES to François ARMAND
- Pull Request set to https://github.com/Normation/rudder/pull/3893
- Target version changed from 6.1.17 to 6.1.18
- Status changed from Pending technical review to Pending release
- Fix check changed from To do to Checked
- Status changed from Pending release to Released
This bug has been fixed in Rudder 6.1.18, 6.2.12 and 7.0.0~rc2 which were released today.
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