我开始了Kaa的演示数据收集：
Sampled temperature 31 1483523282
Sampled temperature 27 1483523283
Sampled temperature 31 1483523284
Sampled temperature 26 1483523285
Sampled temperature 33 1483523286
Sampled temperature 32 1483523287
Sampled temperature 34 1483523288
Sampled temperature 27 1483523289
Sampled temperature 25 1483523290
Sampled temperature 27 1483523291
Sampled temperature 28 1483523292
Sampled temperature 32 1483523293
Sampled temperature 30 1483523294
Sampled temperature 34 1483523295
Sampled temperature 27 1483523296
Sampled temperature 27 1483523297
Sampled temperature 33 1483523298
Sampled temperature 34 1483523299
2017/01/04 9:48:19 [ERROR] [kaa_logging.c:803] (-6) - Failed to upload log bucket, id '1' (delivery error code '1')
这最后一行错误是什么意思？从我看来，它似乎无法上传到数据库。
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答案 0 :(得分：0)
这是内部日志追加器错误。默认情况下，Data Collection演示使用MongoDB appender。检查沙盒上的MongoDB是否已启动并运行：
sudo service --status-all | grep mongo