前提條件

• 已寫入時(shí)序數(shù)據(jù)。具體操作，請(qǐng)參見寫入時(shí)序數(shù)據(jù)。

• 已初始化TimeseriesClient。具體操作，請(qǐng)參見初始化OTSClient。

參數(shù)

timeseriesKey用于標(biāo)識(shí)一個(gè)時(shí)間線，您可以傳入多個(gè)timeseriesKey來刪除多條時(shí)間線的元數(shù)據(jù)。詳細(xì)參數(shù)說明請(qǐng)參見下表。

示例

以下示例用于刪除指定時(shí)序表中的部分時(shí)間線。

private static void deleteTimeseriesMeta(TimeseriesClient client) {
    List<TimeseriesKey> timeseriesKeyList = new ArrayList<TimeseriesKey>();
    for (int i = 0; i < 10; i++) {
        Map<String, String> tags = new HashMap<String, String>();
        tags.put("region", "hangzhou");
        tags.put("os", "Ubuntu16.04");
        // 構(gòu)造TimeseriesKey。
        TimeseriesKey timeseriesKey = new TimeseriesKey("cpu", "host_" + i, tags);
        timeseriesKeyList.add(timeseriesKey);
    }
    // 填寫時(shí)序表名稱。
    String tableName = "<TIME_SERIES_TABLE>";
    DeleteTimeseriesMetaRequest deleteTimeseriesMetaRequest = new DeleteTimeseriesMetaRequest(tableName);
    deleteTimeseriesMetaRequest.setTimeseriesKeys(timeseriesKeyList);
    DeleteTimeseriesMetaResponse deleteTimeseriesMetaResponse = client.deleteTimeseriesMeta(deleteTimeseriesMetaRequest);
    // 檢查是否全部成功。
    if (!deleteTimeseriesMetaResponse.isAllSuccess()) {
        for (DeleteTimeseriesMetaResponse.FailedRowResult failedRowResult : deleteTimeseriesMetaResponse.getFailedRows()) {
            System.out.println(failedRowResult.getIndex());
            System.out.println(failedRowResult.getError());
        }
    }
}