Occasional extraneous log messages on license servers
Details
| Detail name | Value |
|---|---|
| Changelog Number | 9132 |
| Type | Bug |
| Status | Resolved |
| Affected Versions | Exasol 6.1.0, Exasol 6.2.0, Exasol 7.1.0, Exasol 8.0.0 |
| Fix Versions | Exasol 8.29.0 |
| Resolution Date | 2024-07-12 |
Background
EXAClusterOS runs some monitoring tasks on all cluster nodes, that logs for example the Load on the cluster nodes and watches the nodes for kernel messages that indicate hardware issues (among other things).
Only a subset of these tasks run on the license server (e.g. the load on the license server is not relevant as it does not participate in the actual computation).
Bug
Occasionally, these monitoring tasks can additionally run on the license server. This leads to e.g. the load on the license server being logged (in addition to the other nodes).
If these messages are used for external monitoring of the cluster health via the remote syslog functionality, they can confuse this monitoring because the license server only appears briefly.
Workaround
The superfluous log messages can simply be ignored by filtering out all nodes with a node id of 10 or less (that is nodes n0001 to n0010).
