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Reference for CassandraLogs table in Azure Monitor Logs.
| Attribute | Value |
|---|---|
| Category | - |
| Basic Logs Eligible | ✗ No (source) |
| Supports Transformations | ✓ Yes (source) |
| Ingestion API Supported | ✗ No |
| Azure Monitor Tables Reference | View Documentation |
Source: Azure Monitor documentation
| Column Name | Type | Description |
|---|---|---|
| _BilledSize | real | The record size in bytes |
| _IsBillable | string | Specifies whether ingesting the data is billable. When _IsBillable is false ingestion isn't billed to your Azure account |
| _ResourceId | string | A unique identifier for the resource that the record is associated with |
| _SubscriptionId | string | A unique identifier for the subscription that the record is associated with |
| AddressIp | string | IP address of the node that generated the logging event. |
| CassandraKey | string | Cassandra key. |
| CassandraKeyspace | string | Cassandra keyspace. |
| CassandraTable | string | Cassandra table. |
| ClusterName | string | Cluster name. |
| CodeCacheAfter | long | Code cache after garbage collection (in bytes). Code cache stores native code generated by JVM. |
| CodeCacheBefore | long | Code cache before garbage collection (in bytes). Code cache stores native code generated by JVM. |
| Collections | int | The number of garbage collections. |
| CompressedClassSpaceAfter | long | Compressed class space after garbage collection (in bytes). Compressed class space stores class information referred to by the objects in the JavaHeap. |
| CompressedClassSpaceBefore | long | Compressed class space before garbage collection (in bytes). Compressed class space stores class information referred to by the objects in the JavaHeap. |
| DeletionInfo | string | Deletion info. |
| DroppedCrossNodeTimeout | int | The number of messages dropped due to cross node timeout in last 5000ms. |
| DroppedInternalTimeout | int | The number of messages dropped due to internal timeout in last 5000ms. |
| DroppedMessages | int | The number of messages dropped in last 5000ms. |
| DroppedMessagesType | string | The type of messages dropped in last 5000ms. |
| DurationMs | int | Duration. |
| EdenSpaceAfter | long | Eden space after garbage collection (in bytes). Eden space is the memory region where objects are allocated when they are created. |
| EdenSpaceBefore | long | Eden space before garbage collection (in bytes). Eden space is the memory region where objects are allocated when they are created. |
| Endpoint | string | IP address of an endpoint. |
| EventCategory | string | Category of the logging event, e.g. startup, garbage_collection, compaction. |
| EventProduct | string | Product of the logging event, e.g. cassandra, dse, solr. |
| EventType | string | type of the logging event, e.g. commit_log_replay_skipped, unknown_table. |
| Exception | string | Throwable trace bound to the logging event, by default this will output the full trace as one would normally find with a call to Throwable.printStackTrace(). |
| GCType | string | The type of garbage collection, e.g. ParNew, MarkSweepCompact, G1 Old. |
| HostId | string | The GUID assigned in the Cassandra cluster to uniquely identify this node. See the system.local table or nodetool status to find information about the host by its HostId. |
| Level | string | Severity level of the event, will be one of INFO, WARM, ERROR, or OFF. |
| LiveCells | int | The number of live cells. |
| MaxMemory | long | The maximum amount of memory (in bytes) that can be used for memory management. |
| Message | string | Application supplied message associated with the logging event. |
| MetaspaceAfter | long | Metaspace after garbage collection (in bytes). Metaspace stores classes metadata. |
| MetaspaceBefore | long | Metaspace before garbage collection (in bytes). Metaspace stores classes metadata. |
| OldGenAfter | long | Old Generation after garbage collection (in bytes). Old Generation is used to store long surviving objects. |
| OldGenBefore | long | Old Generation before garbage collection (in bytes). Old Generation is used to store long surviving objects. |
| PartitionKey | string | Partition key. |
| PartitionSize | int | Partition size. |
| PendingTasks | int | The number of pending tasks in gossip stage. |
| PercentFull | real | The percentage of full heap. |
| PermGenAfter | long | Permanent Generation space after garbage collection (in bytes). Permanent generation stores classes metadata (renamed to Metaspace in Java 8). |
| PermGenBefore | long | Permanent Generation space before garbage collection (in bytes). Permanent generation stores classes metadata (renamed to Metaspace in Java 8). |
| RequestedColumns | int | The number of columns requested. |
| SessionId | string | Unique string identifying what query was running when this log was emitted. Use SHOW SESSION <SessionId> to find details of the query's activity. |
| SliceEnd | string | The end of the the column slice inclusive. |
| SliceStart | string | The start of the column slice inclusive. |
| SourceFile | string | File name where the logging request was issued. |
| SourceLine | int | Line number where the logging request was issued. |
| SourceSystem | string | The type of agent the event was collected by. For example, OpsManager for Windows agent, either direct connect or Operations Manager, Linux for all Linux agents, or Azure for Azure Diagnostics |
| SSTableName | string | SSTable name. |
| SurvivorSpaceAfter | long | Survivor space after garbage collection (in bytes). Survivor space stores the objects that have survived the garbage collection of the Eden space. |
| SurvivorSpaceBefore | long | Survivor space before garbage collection (in bytes). Survivor space stores the objects that have survived the garbage collection of the Eden space. |
| TenantId | string | The Log Analytics workspace ID |
| ThreadId | string | ID of the thread that generated the logging event. |
| ThreadName | string | Name of the thread that generated the logging event. |
| TimeGenerated | datetime | Date and time the record was created. |
| TombstonedCells | int | The number of tombstoned cells. |
| Type | string | The name of the table |
| UsedMemory | long | The amount of memory currently used (in bytes). |
Official Microsoft Learn documentation for field/column information:
This table collects data from the following Azure resource types:
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