- ServerMonitoringService keeps the SQL Server hosts in step with the monitored
instances (SQLInsight:Servers:IncludeSqlHosts), picks up servers added, paused or
changed in SQLInsight Web within a minute, and runs each server's due areas with
a limit on parallelism. Default intervals: 1 min CPU/memory, 15 min disks and
tasks, 5 min services and events (SQLInsight:Servers:Intervals).
- ServerMonitor: one CIM session per cycle; per-minute samples, disk samples and
the "fuld om ca. N dage" forecast from the stored history, grouped events (read
from where the last read stopped), services and tasks. A missing right makes
only that area "ikke målbar" with the exact reason, logged once per change; a
server that does not answer is notified once, and again when it answers.
Survives an agent restart (samples, boot time, event position).
- SyntheticCheckService runs checks on their interval, opens a SQL login password
sealed for the agent (AgentCredentialKey.OpenContext), looks up the linked
Windows service when a check fails, stores results and findings, notifies with
links to /servere/fund/{id}.
- AgentRequestService hands ServerTest and SyntheticCheckRun to ServerRequestHandler.
- appsettings.json: SQLInsight:Servers and SQLInsight:SyntheticChecks with every
threshold, interval and retention.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
New project SQLInsight.Servers:
- CimWindowsServerSource (Microsoft.Management.Infrastructure, the API behind
Get-CimInstance): WS-Man first, DCOM if that fails, a local session for the
agent's own computer, as the agent's identity. Only SELECT queries (CimQueries)
and Task Scheduler's read-only GetInfo. CPU and paging from raw counters, disks
(Win32_Volume, Win32_LogicalDisk fallback), services, scheduled tasks, and the
System/Application logs through the Event Log service (MS-EVEN6, XPath filter on
the server) with Win32_NTLogEvent as fallback.
- ServerErrors: access denied, missing namespace, RPC/WinRM unreachable and
timeouts become "ikke målbar" reasons that name the missing right and the grant
script; never local administrator.
- WindowsServerTester: tries every area once for the web UI's test.
- SyntheticCheckRunner: TCP, HTTP(S) with expected status/text and TLS certificate
expiry (also for refused certificates), SQL login + read-only query (re-validated,
in a transaction that is always rolled back), DNS, and the Dynamics AX logon:
AOS port, then a logon through the .NET Business Connector in a separate Windows
PowerShell process with a timeout when it is installed; otherwise the result
says clearly that only the port was tested.
Tests: error mapping, queries, AX command/parsing, runners against local TCP and
HTTP(S) servers with a self-signed certificate, the CIM source against this
computer, and the SQL check against the test instance.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
