Fiware Orion与AWS DocumentDB兼容吗

我正在尝试将Orion与AWS DocumentDB连接，但无法连接。然而，我用DocumentDB尝试了另外两个FIWARE组件IoTAgent和Sth Comet，它们都工作得很好

IoAgent和Sth Comet使用相同的主机名和凭据。我还检查了连通性，这很好，因为IoAgent和Sth Comet位于同一网络中。我还从同一网络中的另一个mongo主机进行了检查，这也起到了作用。下面是我为猎户座得到的错误

time=2021-02-18T07:03:46.293Z | lvl=ERROR | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=mongoConnectionPool.cpp[180]:mongoConnect | msg=Database Startup Error (cannot connect to mongo - doing 100 retries with a 1000 millisecond interval)

是否存在Orion与AWS DocumentDB不兼容的可能性

更新1:

bash-4.2$ ps ax | grep contextBroker
    1 ?        Ss     0:00 /usr/bin/contextBroker -fg -multiservice -ngsiv1Autocast -disableFileLog -dbhost xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com -db admin -dbuser test -dbpwd xxxxxxxxxx

更新2:

bash-4.2$ ps ax | grep contextBroker
    1 ?        Ss     0:00 /usr/bin/contextBroker -fg -multiservice -ngsiv1Autocast -disableFileLog -dbhost xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com -db admin -dbuser test -dbpwd xxxxxxxxxx

早些时候，我使用Orion docker图像，直接从dockerhub中提取，但这不起作用。所以这次，我通过构建版本2.4.2和2.5.2的源代码来构建两个docker映像。现在，我可以用这些docker图像连接AWS DocuemntDB，但是得到了一个不同的错误，如下所示

time=2021-02-23T06:10:41.982Z | lvl=ERROR | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported" }> from caller mongoSubCacheItemInsert:83)
time=2021-02-23T06:10:41.982Z | lvl=ERROR | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=AlarmManager.cpp[211]:dbError | msg=Raising alarm DatabaseError: error retrieving _id field in doc: '{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported" }'

我还能够使用Mongo Shell从Orion Pod连接到DocumentDB

mongo --host xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com:27017 --username xxxx --password xxxx
rs0:PRIMARY> show dbs;
rs0:PRIMARY>

我还可以使用以下命令创建条目，并在DocumentDB中创建一个DB和集合：

curl localhost:1026/v2/entities -s -S --header 'Content-Type: application/json' \
>     -X POST -d @- <<EOF
> {
>   "id": "Room2",
>   "type": "Room",
>   "temperature": {
>     "value": 23,
>     "type": "Number"
>   },
>   "pressure": {
>     "value": 720,
>     "type": "Number"
>   }
> }
> EOF

rs0:PRIMARY> show dbs;
orion  0.000GB

最后，仍然会在日志中得到相同的错误

time=2021-02-23T06:16:04.564Z | lvl=ERROR | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported" }> from caller mongoSubCacheItemInsert:83)
time=2021-02-23T06:16:04.564Z | lvl=ERROR | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=AlarmManager.cpp[211]:dbError | msg=Raising alarm DatabaseError: error retrieving _id field in doc: '{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported" }'

数据库中的条目：

rs0:PRIMARY> show dbs
orion  0.000GB
rs0:PRIMARY> use orion
switched to db orion
rs0:PRIMARY> show collections
entities
rs0:PRIMARY> db.entities.find()
{ "_id" : { "id" : "Room2", "type" : "Room", "servicePath" : "/" }, "attrNames" : [ "temperature", "pressure" ], "attrs" : { "temperature" : { "type" : "Number", "creDate" : 1614323032.671698, "modDate" : 1614323032.671698, "value" : 23, "mdNames" : [ ] }, "pressure" : { "type" : "Number", "creDate" : 1614323032.671698, "modDate" : 1614323032.671698, "value" : 720, "mdNames" : [ ] } }, "creDate" : 1614323032.671698, "modDate" : 1614323032.671698, "lastCorrelator" : "c8a73f40-7800-11eb-bd9b-bea9c419835d" }

猎户座吊舱日志：

time=2021-02-26T06:46:33.966Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=contextBroker.cpp[1008]:main | msg=start command line </usr/bin/contextBroker -fg -multiservice -ngsiv1Autocast -disableFileLog -dbhost -dbhost xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com -dbuser xxxxxxxx -dbpwd xxxxxxxx -logLevel DEBUG -noCache>
time=2021-02-26T06:46:33.966Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=contextBroker.cpp[1076]:main | msg=Orion Context Broker is running
time=2021-02-26T06:46:34.280Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=MongoGlobal.cpp[243]:mongoInit | msg=Connected to mongo at xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com/orion, as user 'xxxxxxx' (poolsize: 10)
time=2021-02-26T06:46:34.282Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=contextBroker.cpp[1202]:main | msg=Startup completed
time=2021-02-26T07:03:24.546Z | lvl=INFO | corr=b7e44e5a-7800-11eb-9531-bea9c419835d | trans=1614321993-966-00000000001 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=logTracing.cpp[79]:logInfoRequestWithoutPayload | msg=Request received: GET /version, response code: 200
time=2021-02-26T07:03:52.672Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }> from caller processContextElement:3493)
time=2021-02-26T07:03:52.672Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[211]:dbError | msg=Raising alarm DatabaseError: error retrieving _id field in doc: '{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }'
time=2021-02-26T07:03:52.782Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[235]:dbErrorReset | msg=Releasing alarm DatabaseError
time=2021-02-26T07:03:52.790Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }> from caller addTriggeredSubscriptions_noCache:1408)
time=2021-02-26T07:03:52.790Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[211]:dbError | msg=Raising alarm DatabaseError: error retrieving _id field in doc: '{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }'
time=2021-02-26T07:03:52.791Z | lvl=INFO | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=logTracing.cpp[130]:logInfoRequestWithPayload | msg=Request received: POST /v2/entities, request payload (148 bytes): {  "id": "Room2",  "type": "Room",  "temperature": {    "value": 23,    "type": "Number"  },  "pressure": {    "value": 720,    "type": "Number"  }}, response code: 201
time=2021-02-26T07:03:58.479Z | lvl=ERROR | corr=cc1d5934-7800-11eb-a28d-bea9c419835d | trans=1614321993-966-00000000003 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[235]:dbErrorReset | msg=Releasing alarm DatabaseError
time=2021-02-26T07:03:58.479Z | lvl=ERROR | corr=cc1d5934-7800-11eb-a28d-bea9c419835d | trans=1614321993-966-00000000003 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323038|1 }> from caller ContextElementResponse:109)
terminate called after throwing an instance of 'mongo::AssertionException'
  what():  assertion src/mongo/bson/bsonelement.cpp:392

---

日志跟踪中显示的以下消息非常重要

"Legacy opcodes are not supported"

尽管Orion 2.5.2及之前版本使用的MongoDB驱动程序适用于4.4之前的MongoDB官方版本，但像AWS DocumentDB这样的MongoDB“克隆版”可能并非如此

我们在。在Orion master branch中完成此更改后，我建议对其进行测试（使用

：latest

dockerhub标记）。同时，作为一种解决方法，我建议使用官方的MongoDB数据库

---

编辑：更改MongoDB驱动程序的过程已经完成，Orion从3.0.0版开始使用新的驱动程序。我认为用这个新版本进行测试是个好主意，看看效果如何。如果您向我提供访问信息，我可以帮助您进行测试（请参阅）。

您是否可以编辑您的问题帖子，以包括Orion的运行方式？即

ps ax | grep contextBroker

。相关：相关（但不确定是否完全相同）：@fgalan感谢您的回复。我已经更新了相同的。如果您尝试从CB使用相同凭据（例如使用

mongo

shell）运行的同一主机访问位于xxxxxxxxxxxxxxxx.docdb.amazonaws.com的DocumentDB，是否有效？答案已编辑以添加新信息

time=2021-02-26T06:46:33.966Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=contextBroker.cpp[1008]:main | msg=start command line </usr/bin/contextBroker -fg -multiservice -ngsiv1Autocast -disableFileLog -dbhost -dbhost xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com -dbuser xxxxxxxx -dbpwd xxxxxxxx -logLevel DEBUG -noCache>
time=2021-02-26T06:46:33.966Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=contextBroker.cpp[1076]:main | msg=Orion Context Broker is running
time=2021-02-26T06:46:34.280Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=MongoGlobal.cpp[243]:mongoInit | msg=Connected to mongo at xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com/orion, as user 'xxxxxxx' (poolsize: 10)
time=2021-02-26T06:46:34.282Z | lvl=INFO | corr=N/A | trans=N/A | from=N/A | srv=N/A | subsrv=N/A | comp=Orion | op=contextBroker.cpp[1202]:main | msg=Startup completed
time=2021-02-26T07:03:24.546Z | lvl=INFO | corr=b7e44e5a-7800-11eb-9531-bea9c419835d | trans=1614321993-966-00000000001 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=logTracing.cpp[79]:logInfoRequestWithoutPayload | msg=Request received: GET /version, response code: 200
time=2021-02-26T07:03:52.672Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }> from caller processContextElement:3493)
time=2021-02-26T07:03:52.672Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[211]:dbError | msg=Raising alarm DatabaseError: error retrieving _id field in doc: '{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }'
time=2021-02-26T07:03:52.782Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[235]:dbErrorReset | msg=Releasing alarm DatabaseError
time=2021-02-26T07:03:52.790Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }> from caller addTriggeredSubscriptions_noCache:1408)
time=2021-02-26T07:03:52.790Z | lvl=ERROR | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[211]:dbError | msg=Raising alarm DatabaseError: error retrieving _id field in doc: '{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323032|1 }'
time=2021-02-26T07:03:52.791Z | lvl=INFO | corr=c8a73f40-7800-11eb-bd9b-bea9c419835d | trans=1614321993-966-00000000002 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=logTracing.cpp[130]:logInfoRequestWithPayload | msg=Request received: POST /v2/entities, request payload (148 bytes): {  "id": "Room2",  "type": "Room",  "temperature": {    "value": 23,    "type": "Number"  },  "pressure": {    "value": 720,    "type": "Number"  }}, response code: 201
time=2021-02-26T07:03:58.479Z | lvl=ERROR | corr=cc1d5934-7800-11eb-a28d-bea9c419835d | trans=1614321993-966-00000000003 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=AlarmManager.cpp[235]:dbErrorReset | msg=Releasing alarm DatabaseError
time=2021-02-26T07:03:58.479Z | lvl=ERROR | corr=cc1d5934-7800-11eb-a28d-bea9c419835d | trans=1614321993-966-00000000003 | from=127.0.0.1 | srv=<none> | subsrv=<none> | comp=Orion | op=safeMongo.cpp[360]:getField | msg=Runtime Error (field '_id' is missing in BSONObj <{ ok: 0.0, code: 303, errmsg: "Legacy opcodes are not supported", operationTime: Timestamp 1614323038|1 }> from caller ContextElementResponse:109)
terminate called after throwing an instance of 'mongo::AssertionException'
  what():  assertion src/mongo/bson/bsonelement.cpp:392

curl localhost:1026/v2/entities/Room2 -s -S --header 'Accept: application/json' | python -mjson.tool
command terminated with exit code 137

"Legacy opcodes are not supported"