manualCompact()

MilvusClient interface. This method triggers a compaction operation on the server side.

notes

Milvus server can automatically trigger compaction operation in certain conditions.

Java

R<ManualCompactionResponse> manualCompact(ManualCompactParam requestParam);

ManualCompactParam

Use the ManualCompactParam.Builder to construct a ManualCompactParam object.

Java

import io.milvus.param.ManualCompactParam;
ManualCompactParam.Builder builder = ManualCompactParam.newBuilder();

Methods of ManualCompactParam.Builder:

Method	Description	Parameters
withCollectionName(String collectionName)	Sets the collection name. Collection name cannot be empty or null.	collectionName: The target collection name.
build()	Construct a ManualCompactParam object.	N/A

The ManualCompactParam.Builder.build() can throw the following exceptions:

• ParamException: error if the parameter is invalid.

Returns

This method catches all the exceptions and returns an R<ManualCompactionResponse> object.

• If the API fails on the server side, it returns the error code and message from the server.

• If the API fails by RPC exception, it returns R.Status.Unknown and error message of the exception.

• If the API succeeds, it returns a valid ManualCompactionResponse held by the R template. The ManualCompactionResponse contains an ID of this compaction operation, which you can check the state by getCompactionState() or getCompactionStateWithPlans() method.

Example

Java

import io.milvus.param.*;

ManualCompactParam param = ManualCompactParam.newBuilder()
        .withSegmentIDs(segmentIDs)
        .withDestinationNodeID(destNodeID)
        .withSourceNodeID(srcNodeID)
        .build();
R<ManualCompactionResponse> response = client.manualCompact(param);
if (response.getStatus() != R.Status.Success.getCode()) {
    System.out.println(response.getMessage());
}

System.out.println("Compaction ID: " + response.getData().getCompactionID());