I am using k8 to host my grpc service.
Sometimes, I am getting the following error (few milliseconds into my request):
rpc error: code = Unavailable desc = closing transport due to: connection error: desc = "error reading from server: read tcp <ipaddr>:52220-><internal ip addr>:8070: read: connection reset by peer", received prior goaway: code: NO_ERROR
May I ask how will this occur? Could it be that the k8's network is down?
This happened because on server shutdown, it sends an initial GOAWAY to support graceful shutdown. This means your server shut down.
I created a testchannel and tried to join peer to it using the codes below.
export CORE_PEER_LOCALMSPID="Org1MSP"
export CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer1.org1.example.com/tls/ca.crt
export CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin#org1.example.com/msp
export CORE_PEER_ADDRESS=peer1.org1.example.com:7051
peer channel join -b testchannel.block
But connection error occured as below.
Error: error getting endorser client for channel: endorser client failed to connect to peer1.org1.example.com:7051: failed to create new connection: connection error: desc = "transport: error while dialing: dial tcp 172.18.0.3:7051: connect: connection refused"
I tried the solutions mentioned in other similar posts such as changing the CORE_PEER_TLS_ENABLED but it still occured. How to solve it? Thanks!
You will need to check the docker log of the peer
docker logs <container id>
There is insufficient information provided to help you.
My OS is Yocto Rocko on i.MX6Q.
I used docker v17.06 to load three greengrass image version 1.7.1, 1.8.1 and 1.9.2.
I followed the README.md in each package to setup up and install step by step.
All images were failed to connect AWS greengrass group I created.
The following are logs about the error, I think the reason is MQTT setting has something wrong. I google mosquitto.conf about greengrass, and I couldn't find any solution.
Here is my mosquitto info.
root#imx6qsabresd:/etc/mosquitto# mosquitto -h
mosquitto version 1.4.14 (build date 2019-06-26 15:24:46+0800)
mosquitto is an MQTT v3.1.1/v3.1 broker.
Could anyone tell me how to setting mosquitto.conf for greengrass?
Or is the root cause another one?
greengrass v1.7.1 log
[2019-07-01T02:49:18.214Z][INFO]-===========================================
[2019-07-01T02:49:18.214Z][INFO]-Greengrass Root: /greengrass
[2019-07-01T02:49:18.214Z][INFO]-Greengrass Write Directory: /greengrass/ggc
[2019-07-01T02:49:18.214Z][INFO]-Group File Directory: /greengrass/ggc/deployment/group
[2019-07-01T02:49:18.214Z][INFO]-Default Lambda UID: 122 GID: 121
[2019-07-01T02:49:18.214Z][INFO]-===========================================
[2019-07-01T02:49:18.223Z][INFO]-The current core is using the AWS IoT certificates with fingerprint: 5da1e3eb3aefdc0c3adf0607284ea00debba05af257ba42b96c9c211f441f5bf
[2019-07-01T02:49:18.224Z][WARN]-worker process info: /greengrass/ggc/packages/1.7.1/var/worker/processes
[2019-07-01T02:49:18.225Z][WARN]-worker process info: /greengrass/ggc/packages/1.7.1/var/worker/processes
[2019-07-01T02:49:18.234Z][INFO]-Reloading registry
[2019-07-01T02:49:18.236Z][INFO]-The current core is using the AWS IoT certificates with fingerprint: 5da1e3eb3aefdc0c3adf0607284ea00debba05af257ba42b96c9c211f441f5bf
[2019-07-01T02:49:23.291Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.192.233.211:8883: i/o timeout
[2019-07-01T02:49:28.297Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.199.190.37:8883: i/o timeout
[2019-07-01T02:49:34.303Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.192.233.211:8883: i/o timeout
[2019-07-01T02:49:39.309Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.199.190.37:8883: i/o timeout
[2019-07-01T02:49:45.315Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.192.233.211:8883: i/o timeout
[2019-07-01T02:49:53.321Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.199.190.37:8883: i/o timeout
[2019-07-01T02:50:20.327Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.192.233.211:8883: i/o timeout
[2019-07-01T02:50:45.363Z][WARN]-Attempt to establish MQTT connection with a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883 failed and will be retried: Network Error : dial tcp 52.196.224.122:8883: i/o timeout
greengrass v1.8.1 log
[2019-07-01T03:28:02.096Z][INFO]-MQTT connection attempt: attemptId: ibGG, clientId: zohan_Core
[2019-07-01T03:28:17.102Z][WARN]-MQTT[client] dial tcp 52.192.233.211:8883: i/o timeout
[2019-07-01T03:28:17.102Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:28:33.097Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:28:33.097Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: ibGG, clientId: zohan_Core: operation timed out
[2019-07-01T03:29:07.098Z][INFO]-MQTT connection attempt: attemptId: qPeP, clientId: zohan_Core
[2019-07-01T03:29:22.159Z][WARN]-MQTT[client] dial tcp 13.231.29.48:8883: i/o timeout
[2019-07-01T03:29:22.159Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:29:38.099Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:29:38.099Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: qPeP, clientId: zohan_Core: operation timed out
[2019-07-01T03:30:00.1Z][INFO]-MQTT connection attempt: attemptId: tQVE, clientId: zohan_Core
[2019-07-01T03:30:15.105Z][WARN]-MQTT[client] dial tcp 52.196.81.83:8883: i/o timeout
[2019-07-01T03:30:15.105Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:30:31.101Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:30:31.101Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: tQVE, clientId: zohan_Core: operation timed out
[2019-07-01T03:30:34.102Z][INFO]-MQTT connection attempt: attemptId: bbZJ, clientId: zohan_Core
[2019-07-01T03:30:49.134Z][WARN]-MQTT[client] dial tcp 52.199.190.37:8883: i/o timeout
[2019-07-01T03:30:49.134Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:31:05.103Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:31:05.103Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: bbZJ, clientId: zohan_Core: operation timed out
[2019-07-01T03:31:49.103Z][INFO]-MQTT connection attempt: attemptId: QZad, clientId: zohan_Core
[2019-07-01T03:32:04.144Z][WARN]-MQTT[client] dial tcp 52.192.233.211:8883: i/o timeout
[2019-07-01T03:32:04.144Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:32:20.105Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:32:20.105Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: QZad, clientId: zohan_Core: operation timed out
[2019-07-01T03:32:54.105Z][INFO]-MQTT connection attempt: attemptId: RhWa, clientId: zohan_Core
[2019-07-01T03:33:09.14Z][WARN]-MQTT[client] dial tcp 52.196.81.83:8883: i/o timeout
[2019-07-01T03:33:09.14Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:33:25.107Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:33:25.107Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: RhWa, clientId: zohan_Core: operation timed out
[2019-07-01T03:33:52.107Z][INFO]-MQTT connection attempt: attemptId: RKLh, clientId: zohan_Core
[2019-07-01T03:34:07.113Z][WARN]-MQTT[client] dial tcp 13.231.29.48:8883: i/o timeout
[2019-07-01T03:34:07.113Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:34:23.108Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:34:23.108Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: RKLh, clientId: zohan_Core: operation timed out
[2019-07-01T03:35:22.109Z][INFO]-MQTT connection attempt: attemptId: cJQX, clientId: zohan_Core
[2019-07-01T03:35:37.186Z][WARN]-MQTT[client] dial tcp 52.196.224.122:8883: i/o timeout
[2019-07-01T03:35:37.186Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:35:53.11Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:35:53.11Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: cJQX, clientId: zohan_Core: operation timed out
[2019-07-01T03:36:25.111Z][INFO]-MQTT connection attempt: attemptId: tPkl, clientId: zohan_Core
[2019-07-01T03:36:40.176Z][WARN]-MQTT[client] dial tcp 52.196.224.122:8883: i/o timeout
[2019-07-01T03:36:40.176Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:36:56.112Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-07-01T03:36:56.112Z][WARN]-MQTT connection attempt failed and will be retried: attemptId: tPkl, clientId: zohan_Core: operation timed out
[2019-07-01T03:37:22.112Z][INFO]-MQTT connection attempt: attemptId: RJbR, clientId: zohan_Core
[2019-07-01T03:37:37.118Z][WARN]-MQTT[client] dial tcp 54.178.150.112:8883: i/o timeout
[2019-07-01T03:37:37.118Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-07-01T03:37:53.113Z][WARN]-MQTT[store] Trying to close memory store, but not open
greengrass v1.9.2 log
ogot#imx6qsabresd:/usr/aws/aws-greengrass-docker-1.9.2/log/system# cat runtime.lo
[2019-06-28T03:12:10.073Z][DEBUG]-Disconnecting client
[2019-06-28T03:12:10.073Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:12:10.073Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:12:10.073Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "RHeO", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:12:11.074Z][DEBUG]-MQTT connection attempt. {"attemptId": "LcQc", "clientId": "zohan_Core"}
[2019-06-28T03:12:11.074Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:12:11.074Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:12:11.074Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:12:26.128Z][WARN]-MQTT[client] dial tcp 52.196.224.122:8883: i/o timeout
[2019-06-28T03:12:26.128Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:06:24.813Z][INFO]-===========================================
[2019-06-28T03:06:24.813Z][INFO]-Greengrass Version: 1.9.2-RC4
[2019-06-28T03:06:24.813Z][INFO]-Greengrass Root: /greengrass
[2019-06-28T03:06:24.813Z][INFO]-Greengrass Write Directory: /greengrass/ggc
[2019-06-28T03:06:24.813Z][INFO]-Group File Directory: /greengrass/ggc/deployment/group
[2019-06-28T03:06:24.813Z][INFO]-Default Lambda UID: 122
[2019-06-28T03:06:24.813Z][INFO]-Default Lambda GID: 121
[2019-06-28T03:06:24.813Z][DEBUG]-Go version: go1.10.3
[2019-06-28T03:06:24.814Z][DEBUG]-CoreThing Connection Config:
{
"Region": "ap-northeast-1",
"ThingArn": "arn:aws:iot:ap-northeast-1:268205529033:thing/zohan_Core",
"IoTMQTTEndpoint": "a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883",
"IoTHTTPEndpoint": "a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8443",
"GGMQTTEndpoint": "greengrass-ats.iot.ap-northeast-1.amazonaws.com:8883",
"GGHTTPEndpoint": "greengrass-ats.iot.ap-northeast-1.amazonaws.com:8443",
"GGMQTTKeepAlive": 600,
"GGMQTTMaxConnectionRetryInterval": 60,
"GGMQTTConnectTimeout": 30,
"GGMQTTPingTimeout": 30,
"GGHTTPTimeout": 60,
"FIPSMode": false,
"CoreClientId": ""
}
[2019-06-28T03:06:24.814Z][DEBUG]-System Config:
{
"tmpDirectory": "",
"shadowSyncTimeout": 0
}
[2019-06-28T03:06:24.814Z][DEBUG]-Runtime Config:
{
"maxWorkItemCount": 1024,
"schedulingFrequency": 1000,
"maxConcurrentLimit": 25,
"lruSize": 25,
"cgroup": {
"useSystemd": true,
"mountPoint": null
},
"postStartHealthCheckTimeout": 60000,
"allowFunctionsToRunAsRoot": false,
"onSystemComponentsFailure": 0
}
[2019-06-28T03:06:24.814Z][INFO]-===========================================
[2019-06-28T03:06:24.814Z][DEBUG]-[3]Requested certificate load [file:///greengrass/certs/5da1e3eb3a.cert.pem] with error: [<nil>]
[2019-06-28T03:06:24.814Z][INFO]-The current core is using the AWS IoT certificates with fingerprint. {"fingerprint": "5da1e3eb3aefdc0c3adf0607284ea00debba05af257ba42b96c9c211f441f5bf"}
[2019-06-28T03:06:24.815Z][INFO]-Will persist worker process info. {"dir": "/greengrass/ggc/packages/1.9.2/var/worker/processes"}
[2019-06-28T03:06:24.816Z][INFO]-Will persist worker process info. {"dir": "/greengrass/ggc/packages/1.9.2/var/worker/processes"}
[2019-06-28T03:06:24.817Z][DEBUG]-loading subscriptions {"trie": "map[]"}
[2019-06-28T03:06:24.819Z][DEBUG]-[3]Requested certificate load [file:///greengrass/certs/root.ca.pem] with error: [<nil>]
[2019-06-28T03:06:24.823Z][DEBUG]-[3]Requested key load [file:///greengrass/certs/5da1e3eb3a.private.key] with error: [<nil>]
[2019-06-28T03:06:24.823Z][DEBUG]-[3]Requested certificate load [file:///greengrass/certs/5da1e3eb3a.cert.pem] with error: [<nil>]
[2019-06-28T03:06:24.826Z][INFO]-No proxy URL found.
[2019-06-28T03:06:24.827Z][DEBUG]-Reloading function registry.
[2019-06-28T03:06:24.828Z][DEBUG]-[3]Requested certificate load [file:///greengrass/certs/5da1e3eb3a.cert.pem] with error: [<nil>]
[2019-06-28T03:06:24.828Z][INFO]-The current core is using the AWS IoT certificates with fingerprint. {"fingerprint": "5da1e3eb3aefdc0c3adf0607284ea00debba05af257ba42b96c9c211f441f5bf"}
[2019-06-28T03:06:24.833Z][DEBUG]-[3]Requested certificate load [file:///greengrass/certs/root.ca.pem] with error: [<nil>]
[2019-06-28T03:06:24.836Z][DEBUG]-[3]Requested key load [file:///greengrass/certs/5da1e3eb3a.private.key] with error: [<nil>]
[2019-06-28T03:06:24.837Z][DEBUG]-[3]Requested certificate load [file:///greengrass/certs/5da1e3eb3a.cert.pem] with error: [<nil>]
[2019-06-28T03:06:24.84Z][INFO]-Started Deployment Agent to listen for updates.
[2019-06-28T03:06:24.841Z][INFO]-Connecting with MQTT. {"endpoint": "a3ha96wpso16t3-ats.iot.ap-northeast-1.amazonaws.com:8883", "clientId": "zohan_Core"}
[2019-06-28T03:06:24.841Z][DEBUG]-MQTT connection attempt. {"attemptId": "sbXW", "clientId": "zohan_Core"}
[2019-06-28T03:06:24.841Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:06:24.841Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:06:24.841Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:46:09.317Z][WARN]-MQTT[client] dial tcp 52.196.81.83:8883: i/o timeout
[2019-06-28T03:46:09.317Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:46:25.26Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:46:25.26Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:46:25.26Z][DEBUG]-Disconnecting client
[2019-06-28T03:46:25.261Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:46:25.261Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:46:25.261Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "sbXW", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:46:25.261Z][DEBUG]-MQTT connection attempt. {"attemptId": "nTLn", "clientId": "zohan_Core"}
[2019-06-28T03:46:25.261Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:46:25.261Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:46:25.261Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:46:40.266Z][WARN]-MQTT[client] dial tcp 13.231.29.48:8883: i/o timeout
[2019-06-28T03:46:40.266Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:46:56.262Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:46:56.262Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:46:56.262Z][DEBUG]-Disconnecting client
[2019-06-28T03:46:56.262Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:46:56.262Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:46:56.263Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "nTLn", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:46:57.263Z][DEBUG]-MQTT connection attempt. {"attemptId": "qkJH", "clientId": "zohan_Core"}
[2019-06-28T03:46:57.263Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:46:57.264Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:46:57.264Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:47:12.307Z][WARN]-MQTT[client] dial tcp 54.178.150.112:8883: i/o timeout
[2019-06-28T03:47:12.308Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:47:28.264Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:47:28.264Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:47:28.264Z][DEBUG]-Disconnecting client
[2019-06-28T03:47:28.265Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:47:28.265Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:47:28.265Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "qkJH", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:47:28.265Z][DEBUG]-MQTT connection attempt. {"attemptId": "DTsS", "clientId": "zohan_Core"}
[2019-06-28T03:47:28.265Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:47:28.265Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:47:28.265Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:47:43.27Z][WARN]-MQTT[client] dial tcp 52.196.224.122:8883: i/o timeout
[2019-06-28T03:47:43.27Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:47:59.266Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:47:59.266Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:47:59.266Z][DEBUG]-Disconnecting client
[2019-06-28T03:47:59.266Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:47:59.266Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:47:59.266Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "DTsS", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:48:02.267Z][DEBUG]-MQTT connection attempt. {"attemptId": "EkzV", "clientId": "zohan_Core"}
[2019-06-28T03:48:02.267Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:48:02.267Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:48:02.267Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:48:17.325Z][WARN]-MQTT[client] dial tcp 52.199.190.37:8883: i/o timeout
[2019-06-28T03:48:17.325Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:48:33.268Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:48:33.268Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:48:33.268Z][DEBUG]-Disconnecting client
[2019-06-28T03:48:33.268Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:48:33.268Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:48:33.268Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "EkzV", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:48:45.269Z][DEBUG]-MQTT connection attempt. {"attemptId": "bRjP", "clientId": "zohan_Core"}
[2019-06-28T03:48:45.269Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:48:45.269Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:48:45.269Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:49:00.275Z][WARN]-MQTT[client] dial tcp 52.192.233.211:8883: i/o timeout
[2019-06-28T03:49:00.275Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:49:16.27Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:49:16.27Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:49:16.27Z][DEBUG]-Disconnecting client
[2019-06-28T03:49:16.27Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:49:16.27Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:49:16.27Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "bRjP", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:49:16.271Z][DEBUG]-MQTT connection attempt. {"attemptId": "HyAU", "clientId": "zohan_Core"}
[2019-06-28T03:49:16.271Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:49:16.271Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:49:16.271Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:49:31.333Z][WARN]-MQTT[client] dial tcp 52.192.233.211:8883: i/o timeout
[2019-06-28T03:49:31.333Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:49:47.271Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:49:47.271Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:49:47.271Z][DEBUG]-Disconnecting client
[2019-06-28T03:49:47.272Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:49:47.272Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:49:47.272Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "HyAU", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:50:14.272Z][DEBUG]-MQTT connection attempt. {"attemptId": "suqf", "clientId": "zohan_Core"}
[2019-06-28T03:50:14.273Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:50:14.273Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:50:14.273Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:50:29.278Z][WARN]-MQTT[client] dial tcp 52.199.190.37:8883: i/o timeout
[2019-06-28T03:50:29.278Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:50:45.274Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:50:45.274Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:50:45.274Z][DEBUG]-Disconnecting client
[2019-06-28T03:50:45.274Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:50:45.274Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:50:45.274Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "suqf", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:51:29.275Z][DEBUG]-MQTT connection attempt. {"attemptId": "YfqT", "clientId": "zohan_Core"}
[2019-06-28T03:51:29.275Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:51:29.275Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:51:29.275Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:51:44.314Z][WARN]-MQTT[client] dial tcp 52.199.190.37:8883: i/o timeout
[2019-06-28T03:51:44.315Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:52:00.276Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:52:00.276Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:52:00.276Z][DEBUG]-Disconnecting client
[2019-06-28T03:52:00.276Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:52:00.276Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:52:00.276Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "YfqT", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:52:56.277Z][DEBUG]-MQTT connection attempt. {"attemptId": "DIBy", "clientId": "zohan_Core"}
[2019-06-28T03:52:56.277Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:52:56.277Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:52:56.277Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:53:11.338Z][WARN]-MQTT[client] dial tcp 52.196.81.83:8883: i/o timeout
[2019-06-28T03:53:11.338Z][WARN]-MQTT[client] Failed to connect to a broker
[2019-06-28T03:53:27.278Z][DEBUG]-Marking connection request as invalid
[2019-06-28T03:53:27.278Z][DEBUG]-Disconnect client {"force": true}
[2019-06-28T03:53:27.278Z][DEBUG]-Disconnecting client
[2019-06-28T03:53:27.278Z][WARN]-MQTT[store] Trying to close memory store, but not open
[2019-06-28T03:53:27.278Z][DEBUG]-Releasing lock for connection attempt
[2019-06-28T03:53:27.278Z][WARN]-MQTT connection attempt failed and will be retried. {"attemptId": "DIBy", "clientId": "zohan_Core", "errorString": "operation timed out"}
[2019-06-28T03:53:38.279Z][DEBUG]-MQTT connection attempt. {"attemptId": "RAeH", "clientId": "zohan_Core"}
[2019-06-28T03:53:38.279Z][DEBUG]-New MQTT connection attempt
[2019-06-28T03:53:38.279Z][DEBUG]-Acquired lock for connection attempt
[2019-06-28T03:53:38.279Z][DEBUG]-Disconnect client {"force": false}
[2019-06-28T03:53:53.285Z][WARN]-MQTT[client] dial tcp 13.231.29.48:8883: i/o timeout
[2019-06-28T03:53:53.285Z][WARN]-MQTT[client] Failed to connect to a broker
You can use AWS MQTT on port 443 which is usually available. To use this port http header value "application protocol name" needs to be set to “x-amzn-mqtt-ca”. Please read more on this here:
https://aws.amazon.com/blogs/iot/mqtt-with-tls-client-authentication-on-port-443-why-it-is-useful-and-how-it-works/
Greengrass has its own MQTT broker.
If you want to connect MQTT clients to AWS Greengrass, you have to follow their
directions at
https://docs.aws.amazon.com/greengrass/latest/developerguide/gg-gs.html
We have FAILED to connect mosquitto client to Greengrass as documented at
https://forums.aws.amazon.com/thread.jspa?threadID=305032&tstart=0
(which you will likely only see if you login to AWS).
While attempting to open a TCP connection to graph.facebook.com, I receive the following error:
Failed to open TCP connection to graph.facebook.com:443 (getaddrinfo:
Name or service not known)
TCPSocket.open(conn_address, conn_port, #local_host, #local_port)
rescue => e
raise e, "Failed to open TCP connection to " +
"#{conn_address}:#{conn_port} (#{e.message})"
end
}
Help me with this error
I'm using omniauth with Rails 5.0.0.beta3
Start by checking your network configuration.
Run this command on your terminal:
dig +short graph.facebook.com
If you do not get any IP address, your system don't know how to resolve this and the problem is not related to Ruby.
In addition to that as mentioned by Dawood Awan in his comment, opening a TCP connection to the port 443 is usually not a good idea, I am pretty sure facebook is excepting an HTTPS Connection.
I am using Datastax enterprise edition and in cluster one is Hadoop/Hive .I am trying to connect to hive with datastax hive odbc connector.I am getting error like :
Connector Version: V1.0.0.1007
Running connectivity tests...
Attempting connection
Failed to establish connection
SQLSTATE: HY000[DataStax][Hardy] (22) Error from ThriftHiveClient: connect() failed: errno = 10061
TESTS COMPLETED WITH ERROR
The error 10061 means connection refused
Seems like you have not started the hive service on your Analytics node therefore nothing is listening on TCP 10000
Please login into one of your DSE Analytics node and execute:
dse hive --service hiveserver
Then try again your test from your Windows system
Source: http://www.datastax.com/documentation/datastax_enterprise/4.0/datastax_enterprise/ana/anaHivStrtSvr.html