【发布时间】：2021-04-12 22:59:26
【问题描述】：
我正在尝试将 Orion 与 AWS DocumentDB 连接，但没有连接。但是我用 DocumentDB 尝试了另外两个 FIWARE 组件 IoTAgent 和 Sth-Comet，它们都工作正常。
相同的主机名和凭据适用于 IoTAgent 和 Sth-Comet。我还检查了连接，这很好，因为 IoTAgent 和 Sth-Comet 在同一个网络中。我还从同一网络中的不同 mongo 主机进行了检查，这也有效。以下是我为 Orion 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)
Orion 是否有可能与 AWS DocumentDB 不兼容？
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：
之前，我通过直接从 dockerhub 拉取来使用 Orion docker 图像，但那不起作用。所以这一次，我通过构建2.4.2和2.5.2版本的源码来构建两个docker镜像。现在，我能够使用这些 docker 映像与 AWS DocuemntDB 连接，但得到如下不同的错误。
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" }'
以下是猎户座版本
contextBroker --version
2.5.0-next (git version: 3984f9fc30e90fa04682131ca4516b4d277eb27e)
curl -X GET 'http://localhost:1026/version'
{
"orion" : {
"version" : "2.5.0-next",
"uptime" : "0 d, 0 h, 4 m, 56 s",
"git_hash" : "3984f9fc30e90fa04682131ca4516b4d277eb27e",
"compile_time" : "Mon Feb 22 17:39:30 UTC 2021",
"compiled_by" : "root",
"compiled_in" : "4c7575c7c27f",
"release_date" : "Mon Feb 22 17:39:30 UTC 2021",
"doc" : "https://fiware-orion.rtfd.io/",
"libversions": {
"boost": "1_53",
"libcurl": "libcurl/7.29.0 NSS/3.53.1 zlib/1.2.7 libidn/1.28 libssh2/1.8.0",
"libmicrohttpd": "0.9.70",
"openssl": "1.0.2k",
"rapidjson": "1.1.0",
"mongodriver": "legacy-1.1.2"
}
}
}
我还可以使用 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，它会在 DocumentDB 中创建一个数据库和集合：
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
但我无法使用 orion API 获取该数据，并且在执行此命令后，它会以空响应从容器中退出。我已经检查了 Orion 版本 2.4.2 和 2.5.2 以及 DocumentDB 4.0 和 3.6。
[root@orion-docdb-7748fd9c85-gbjz7 /]# curl localhost:1026/v2/entities/Room2 -s -S --header 'Accept: application/json' | python -mjson.tool
curl: (52) Empty reply from server
command terminated with exit code 137
最后，日志中仍然出现同样的错误。
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" }'
更新3：
我已添加-noCache 并再次部署。以下是命令输出和日志供您参考。
流程检查：
#ps ax | grep contextBroker
1 ? Ssl 0:00 /usr/bin/contextBroker -fg -multiservice -ngsiv1Autocast -disableFileLog -dbhost xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com -dbuser xxxxxxxx -dbpwd xxxxxxxx -logLevel DEBUG -noCache
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" }
Orion Pod 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
在 API 调用期间 Pod 退出并重新启动：
curl localhost:1026/v2/entities/Room2 -s -S --header 'Accept: application/json' | python -mjson.tool
command terminated with exit code 137
【问题讨论】：
-
您能否编辑您的问题帖子以包含 Orion 的运行方式？即
ps ax | grep contextBroker的结果。 -
相关（但不确定是否完全相同）：stackoverflow.com/questions/63842042/…
-
@fgalan 感谢您的回复。我也更新了。
-
如果您尝试使用相同的凭据（例如使用
mongoshell）从运行 CB 的同一主机访问位于 xxxxxxxxxxxxxxxxxx.docdb.amazonaws.com 的 DocumentDB，它是否有效？
标签： fiware fiware-orion aws-documentdb aws-documentdb-mongoapi