Prediction.io: Невозможно развернуть двигатель

Question

Я пытаюсь настроить Prediction.io Text-Classification Engine на моем локальном компьютере. Однако, при попытке pio build, я получаю следующее сообщение:

[ERROR] [Console$] No valid engine instance found for engine iMXSzwtuLBqTGDQVWFwhXLyX3MELx6Ox 2089ace31214efdc353ab45e911b7524222d7ab6. 
Try running 'train' before 'deploy'. Aborting. 

Как указано в руководстве, я уже импортировали данные выборки. Я могу строить и обучать двигатель без каких-либо проблем. Любые идеи, почему он не может найти действительный экземпляр двигателя?

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Соответствующая информация:

pio build:

[INFO] [Console$] Using existing engine manifest JSON at ~/prediction_io/text_classification/manifest.json 
[INFO] [Console$] Using command '/usr/local/Cellar/predictionio/0.9.5/libexec/sbt/sbt' at the current working directory to build. 
[INFO] [Console$] If the path above is incorrect, this process will fail. 
[INFO] [Console$] Uber JAR disabled. Making sure lib/pio-assembly-0.9.5.jar is absent. 
[INFO] [Console$] Going to run: /usr/local/Cellar/predictionio/0.9.5/libexec/sbt/sbt package assemblyPackageDependency 
[INFO] [Console$] Build finished successfully. 
[INFO] [Console$] Looking for an engine... 
[INFO] [Console$] Found com-example_2.10-0.1-SNAPSHOT.jar 
[INFO] [Console$] Found com.example-assembly-0.1-SNAPSHOT-deps.jar 
[INFO] [RegisterEngine$] Registering engine iMXSzwtuLBqTGDQVWFwhXLyX3MELx6Ox 2089ace31214efdc353ab45e911b7524222d7ab6 
[INFO] [Console$] Your engine is ready for training. 

pio train:

INFO] [Console$] Using existing engine manifest JSON at ~/prediction_io/text_classification/manifest.json 
[INFO] [Runner$] Submission command: /usr/local/opt/apache-spark/bin/spark-submit --class io.prediction.workflow.CreateWorkflow --jars file:~/prediction_io/text_classification/target/scala-2.10/com-example_2.10-0.1-SNAPSHOT.jar,file:~/prediction_io/text_classification/target/scala-2.10/com.example-assembly-0.1-SNAPSHOT-deps.jar --files file:/usr/local/Cellar/predictionio/0.9.5/libexec/conf/log4j.properties --driver-class-path /usr/local/Cellar/predictionio/0.9.5/libexec/conf:/usr/local/opt/elasticsearch/config file:/usr/local/Cellar/predictionio/0.9.5/libexec/lib/pio-assembly-0.9.5.jar --engine-id iMXSzwtuLBqTGDQVWFwhXLyX3MELx6Ox --engine-version 2089ace31214efdc353ab45e911b7524222d7ab6 --engine-variant file:~/prediction_io/text_classification/engine.json --verbosity 0 --json-extractor Both --env PIO_ENV_LOADED=1,PIO_STORAGE_REPOSITORIES_METADATA_NAME=pio_meta,PIO_FS_BASEDIR=~/.pio_store,PIO_HOME=/usr/local/Cellar/predictionio/0.9.5/libexec,PIO_FS_ENGINESDIR=~/.pio_store/engines,PIO_STORAGE_SOURCES_PGSQL_URL=jdbc:postgresql://localhost/pio,PIO_STORAGE_REPOSITORIES_METADATA_SOURCE=PGSQL,PIO_STORAGE_REPOSITORIES_MODELDATA_SOURCE=PGSQL,PIO_STORAGE_REPOSITORIES_EVENTDATA_NAME=pio_event,PIO_STORAGE_SOURCES_PGSQL_PASSWORD=,PIO_STORAGE_SOURCES_PGSQL_TYPE=jdbc,PIO_FS_TMPDIR=~/.pio_store/tmp,PIO_STORAGE_SOURCES_PGSQL_USERNAME=pio,PIO_STORAGE_REPOSITORIES_MODELDATA_NAME=pio_model,PIO_STORAGE_REPOSITORIES_EVENTDATA_SOURCE=PGSQL,PIO_CONF_DIR=/usr/local/Cellar/predictionio/0.9.5/libexec/conf 
/usr/local/Cellar/predictionio/0.9.5/libexec/conf/pio-env.sh: line 55: PIO_STORAGE_SOURCES_PGSQL_PASSWORD: command not found 

pio status:

[INFO] [Console$] Inspecting PredictionIO... 
[INFO] [Console$] PredictionIO 0.9.5 is installed at /usr/local/Cellar/predictionio/0.9.5/libexec 
[INFO] [Console$] Inspecting Apache Spark... 
[INFO] [Console$] Apache Spark is installed at /usr/local/opt/apache-spark 
[WARN] [Console$] Apache Spark version information cannot be found. If you are using a developmental tree, please make sure you are using a version of at least 1.3.0. 
[INFO] [Console$] Inspecting storage backend connections... 
[INFO] [Storage$] Verifying Meta Data Backend (Source: PGSQL)... 
[INFO] [Storage$] Verifying Model Data Backend (Source: PGSQL)... 
[INFO] [Storage$] Verifying Event Data Backend (Source: PGSQL)... 
[INFO] [Storage$] Test writing to Event Store (App Id 0)... 
[INFO] [Console$] (sleeping 5 seconds for all messages to show up...) 
[INFO] [Console$] Your system is all ready to go. 

Answer 1

Последняя строка в вашем Pío поезде является причиной:

/usr/local/Cellar/predictionio/0.9.5/libexec/conf/pio-env.sh: line 55: PIO_STORAGE_SOURCES_PGSQL_PASSWORD: command not found

Вы настроить пароль для PostgreSQL и поместить его в pio-env.sh? Если это не поможет, не стесняйтесь использовать pee -env.sh (отредактируйте пароли и т. Д.)

Если у вас есть дополнительные вопросы, отправьте его в группу Google PredictionIO, где будет дан ответ на ваш вопрос быстрее нашим сообществом.

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