Writing multimeasure records with AWS JavaV2 SDK

Common attributes are attributes that are shared across multiple records. You can specify these attributes once, and then they are applied to all the records that you are writing. In your case, the time and dimensions are likely common attributes.

public void writeRecordsWithCommonAttributes() {
    System.out.println("Writing records with extracting common attributes");
    // Specify repeated values for all records
    List<Record> records = new ArrayList<>();
    final long time = System.currentTimeMillis();

    List<Dimension> dimensions = new ArrayList<>();
    final Dimension region = Dimension.builder().name("region").value("us-east-1").build();
    final Dimension az = Dimension.builder().name("az").value("az1").build();
    final Dimension hostname = Dimension.builder().name("hostname").value("host1").build();

    dimensions.add(region);
    dimensions.add(az);
    dimensions.add(hostname);

    Record commonAttributes = Record.builder()
            .dimensions(dimensions)
            .measureValueType(MeasureValueType.DOUBLE)
            .time(String.valueOf(time)).build();

    Record cpuUtilization = Record.builder()
            .measureName("cpu_utilization")
            .measureValue("13.5").build();
    Record memoryUtilization = Record.builder()
            .measureName("memory_utilization")
            .measureValue("40").build();

    records.add(cpuUtilization);
    records.add(memoryUtilization);

    WriteRecordsRequest writeRecordsRequest = WriteRecordsRequest.builder()
            .databaseName(DATABASE_NAME)
            .tableName(TABLE_NAME)
            .commonAttributes(commonAttributes)
            .records(records).build();

    try {
        WriteRecordsResponse writeRecordsResponse = timestreamWriteClient.writeRecords(writeRecordsRequest);
        System.out.println("writeRecordsWithCommonAttributes Status: " + writeRecordsResponse.sdkHttpResponse().statusCode());
    } catch (RejectedRecordsException e) {
        System.out.println("RejectedRecords: " + e);
        for (RejectedRecord rejectedRecord : e.rejectedRecords()) {
            System.out.println("Rejected Index " + rejectedRecord.recordIndex() + ": "
                    + rejectedRecord.reason());
        }
        System.out.println("Other records were written successfully. ");
    } catch (Exception e) {
        System.out.println("Error: " + e);
    }
}