Question

我编写了一个独立代码来获取Azure存储Blob服务的指标，但我想只获取最后5分钟的指标我如何从$ MetricsMinutePrimaryTransactionsBlob获取它请建议

CloudTable cloudMetric = tableClient.getTableReference(cloud
                .getHourMetricsTable(StorageService.BLOB).getName());
        String partitionFilter2 = TableQuery.generateFilterCondition(
                "PartitionKey", QueryComparisons.EQUAL, "20170602T1400");
        String rowFilter3 = TableQuery.generateFilterCondition("RowKey",
                QueryComparisons.EQUAL, "user;All");
        String combinedFilter = TableQuery.combineFilters(partitionFilter2,
                Operators.AND, rowFilter3);
        TableQuery<MetricsPojo> partitionQuery2 = TableQuery.from(
                MetricsPojo.class).where(combinedFilter);
        for (MetricsPojo capacityMetrics2 : cloudMetric
                .execute(partitionQuery2)) {
            System.out.println(capacityMetrics2);
            System.out.println(capacityMetrics2.getPartitionKey() + "\n"
                    + capacityMetrics2.getRowKey() + "\n"
                    + capacityMetrics2.getTimestamp());

Answer 1

现在没有简单的方法可以查询最后5分钟的行。由于PartitionKey是以分钟为单位的时间戳，因此您可以建议最后20分钟行的查询过滤器，并在本地查找结果的最后5分钟行。

TableQuery.combineFilters(
    TableQuery.generateFilterCondition("PartitionKey", QueryComparisons.GreaterThanOrEqual, "20170602T1400"),
    TableOperators.And,
    TableQuery.generateFilterCondition("PartitionKey", QueryComparisons.LessThanOrEqual, "20170602T1420"));

Answer 2

根据你的描述和@ FrancisYu-MSFT的回复，我写了一个示例代码并转载了你当前的问题。

这是我的示例代码。

String connectionString = String.format("DefaultEndpointsProtocol=http;AccountName=%s;AccountKey=%s", ACCOUNT_NAME, ACCOUNT_KEY);
CloudStorageAccount account = CloudStorageAccount.parse(connectionString);
CloudAnalyticsClient client = account.createCloudAnalyticsClient();
CloudTable metrics = client.getMinuteMetricsTable(StorageService.BLOB);
System.out.println(metrics.getName());
String queryString = TableQuery.combineFilters(
                TableQuery.generateFilterCondition("PartitionKey", QueryComparisons.GREATER_THAN_OR_EQUAL, "20170602T1400"),
                Operators.AND,
                TableQuery.generateFilterCondition("PartitionKey", QueryComparisons.LESS_THAN_OR_EQUAL, "20170602T1420"));
TableQuery<TableServiceEntity> query = TableQuery.from(TableServiceEntity.class).where(queryString);
for(TableServiceEntity entity : metrics.execute(query)) {
    System.out.println(entity.getPartitionKey()+"\t"+entity.getRowKey());
}

然后我在运行代码时出现了同样的问题，这是由度量表$MetricsMinutePrimaryTransactionsBlob不存在引起的，因此您需要启用相关的Diagnostics选项来创建它，如下图所示

如何使用Java SDK查询过去五分钟的Azure存储指标

2 个答案: