每当我print (dfs['squares_1'])
square x y brightness
time
1.0 1.0 243 233 1000
2.0 1.0 293 436 1200
3.0 5.0 176 203 2000
4.0 7.0 111 171 1300
print (dfs['squares_2'])
square x y brightness
time
1.0 2.0 189 230 4000
2.0 2.0 189 233 5000
5.0 8.0 239 284 4300
print (dfs['squares_3'])
Empty DataFrame
Columns: [square, x, y, brightness]
Index: []
print (dfs['squares_4'])
square x y brightness
time
3.0 6.0 374 394 8000
出现以下错误
pio status我的[INFO] [Management$] Inspecting PredictionIO...
[INFO] [Management$] PredictionIO 0.13.0 is installed at /Users/prvns/tools/PredictionIO-0.13.0
[INFO] [Management$] Inspecting Apache Spark...
[INFO] [Management$] Apache Spark is installed at /Users/prvns/tools/PredictionIO-0.13.0/vendors/spark-2.3.1-bin-hadoop2.7
[INFO] [Management$] Apache Spark 2.3.1 detected (meets minimum requirement of 1.6.3)
[INFO] [Management$] Inspecting storage backend connections...
[INFO] [Storage$] Verifying Meta Data Backend (Source: ELASTICSEARCH)...
[ERROR] [Management$] Unable to connect to all storage backends successfully.
The following shows the error message from the storage backend.
PUT http://localhost:9200/pio_meta/_mapping/engine_instances: HTTP/1.1 400 Bad Request
{"error":{"root_cause":[{"type":"parse_exception","reason":"Failed to parse content to map"}],"type":"parse_exception","reason":"Failed to parse content to map","caused_by":{"type":"json_parse_exception","reason":"Duplicate field 'status'\n at [Source: org.elasticsearch.common.compress.DeflateCompressor$1@6b496f00; line: 1, column: 462]"}},"status":400} (org.apache.predictionio.shaded.org.elasticsearch.client.ResponseException)
Dumping configuration of initialized storage backend sources.
Please make sure they are correct.
Source Name: ELASTICSEARCH; Type: elasticsearch; Configuration: HOME -> /usr/local/Cellar/elasticsearch/6.2.4/, HOSTS -> localhost, PORTS -> 9200, SCHEMES -> http, TYPE -> elasticsearch
看起来像
pio-env.sh为什么这不起作用？
答案 0 :(得分：0)
我正在使用ElasticSearch 6.x。我将其替换为ElasticSearch 5.x，并且可以正常工作。