Error when trying to build the Semantic Model for Power BI

[pfekrati]

🐛 Problem

After adding historical data the semantic model fails to build with the following error:

Data source error: Expression.Error: Query execution lacks memory resources to complete (80DA0007): Partial query failure: Low memory condition (E_LOW_MEMORY_CONDITION). (message: 'bad allocation (E_LOW_MEMORY_CONDITION)', details: '').
[0]Kusto.Data.Exceptions.KustoServicePartialQueryFailureLowMemoryConditionException: Query execution lacks memory resources to complete (80DA0007): Partial query failure: Low memory condition (E_LOW_MEMORY_CONDITION). (message: 'bad allocation (E_LOW_MEMORY_CONDITION)', details: '').
Timestamp=2026-01-29T21:27:41.9276181Z
ClientRequestId=KPBI;da28ac00-f5fc-4ba7-9df5-2ecb44a9b174;3138df23-7f3e-4884-88bf-4413de5280c2;2ebdf4a5-c6ca-4efb-a9ac-775f33162a27
ActivityId=e934732f-a425-4efd-a1c0-2560369e3f8a
ActivityType=GW.Http.CallContext
ServiceAlias=KUTRIDENTHOSTEREUS2
MachineName=KEngine00000T
ProcessName=Kusto.WinSvc.Svc
ProcessId=3200
ThreadId=10740
ActivityStack=(Activity stack: CRID=KPBI;da28ac00-f5fc-4ba7-9df5-2ecb44a9b174;3138df23-7f3e-4884-88bf-4413de5280c2;2ebdf4a5-c6ca-4efb-a9ac-775f33162a27 ARID=e934732f-a425-4efd-a1c0-2560369e3f8a > GW.Http.CallContext/e934732f-a425-4efd-a1c0-2560369e3f8a)
MonitoredActivityContext=(ActivityType=GW.Http.CallContext, Timestamp=2026-01-29T21:27:25.0945493Z, ParentActivityId=e934732f-a425-4efd-a1c0-2560369e3f8a, TimeSinceStarted=16833.0738 [ms])ErrorCode=
ErrorReason=
ErrorMessage=
DataSource=
DatabaseName=
ClientRequestId=
ActivityId=00000000-0000-0000-0000-000000000000
UnderlyingErrorCode=80DA0007
UnderlyingErrorMessage=Partial query failure: Low memory condition (E_LOW_MEMORY_CONDITION). (message: 'bad allocation (E_LOW_MEMORY_CONDITION)', details: '')

. . The exception was raised by the IDbCommand interface.
Cluster URI: WABI-US-EAST2-C-PRIMARY-redirect.analysis.windows.net
Activity ID: fba2f2a1-2c56-4e2d-b59b-08d1b32b2421
Request ID: 20039106-b14f-8d31-9dd2-f0cc7eb9cd55
Time: 2026-01-29 21:27:42Z

👣 Repro steps

TODO: Add repro steps below:

1. Deploy FinOps Hubs in Fabric
2. Export historical data for ~ 1 year (13GB worth of data)
3. Build the Semantic Model
4. See error

🤔 Expected

Semantic model should builds successfully after ingesting the historical data

[microsoft-github-policy-service]

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