Hello! I'm using ECommerce Recommendation Template in actionml aws
instance. I downloaed in https://aws.amazon.com/marketplace/pp/B01N310FF0

I successfully the deploy engine. But after few training, I faced this
error when I type "pio status".

=========================== Error =============================

aml@ip-172-31-4-58:/usr/local/hbase/bin$ pio status
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/opt/data/PredictionIO-0.11.0-incubating/lib/spark/pio-data-hdfs-assembly-0.11.0-incubating.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/opt/data/PredictionIO-0.11.0-incubating/lib/pio-assembly-0.11.0-incubating.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
[INFO] [Management$] Inspecting PredictionIO...
[INFO] [Management$] PredictionIO 0.11.0-incubating is installed at
/opt/data/PredictionIO-0.11.0-incubating
[INFO] [Management$] Inspecting Apache Spark...
[INFO] [Management$] Apache Spark is installed at /usr/local/spark
[INFO] [Management$] Apache Spark 1.6.3 detected (meets minimum requirement
of 1.3.0)
[INFO] [Management$] Inspecting storage backend connections...
[INFO] [Storage$] Verifying Meta Data Backend (Source: ELASTICSEARCH)...
[INFO] [Storage$] Verifying Model Data Backend (Source: HDFS)...
[INFO] [Storage$] Verifying Event Data Backend (Source: HBASE)...
[INFO] [Storage$] Test writing to Event Store (App Id 0)...
[WARN] [AsyncProcess] #2, table=pio_event:events_0, attempt=1/1 failed 1
ops, last exception: org.apache.hadoop.hbase.NotServingRegionException:
org.apache.hadoop.hbase.NotServingRegionException: Region
pio_event:events_0,,1498570636965.ecf1dc8082e0c62663f680c875d99ee5. is not
online on ip-172-31-4-58.ap-northeast-2.compute.internal,37339,1498205675275
        at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2942)
        at
org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1072)
        at
org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2122)
        at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:33656)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2188)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)
        at
org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
        at
org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
        at java.lang.Thread.run(Thread.java:748)
 on ip-172-31-4-58.ap-northeast-2.compute.internal,37339,1498205675275,
tracking started Tue Jun 27 16:28:18 UTC 2017 - FAILED, NOT RETRYING ANYMORE
[ERROR] [Management$] Unable to connect to all storage backends
successfully.
The following shows the error message from the storage backend.

Failed 1 action: NotServingRegionException: 1 time,
 (org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException)

Dumping configuration of initialized storage backend sources.
Please make sure they are correct.

Source Name: ELASTICSEARCH; Type: elasticsearch; Configuration: HOSTS ->
127.0.0.1, TYPE -> elasticsearch, CLUSTERNAME -> elasticsearch
Source Name: HBASE; Type: hbase; Configuration: TYPE -> hbase
Source Name: HDFS; Type: hdfs; Configuration: TYPE -> hdfs, PATH -> /models
============================================================

Can you give me some clue about why this error pops up? I'll post config
file if you request it.

Thank you!!!

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