Hang when reconnect to kurento

OpenVidu v2 Issues with deployment
1

hi.

I’m using openvidu and kurento on docker.
My problem is that if I only stop and start the kurento container, openvidu does not reconnect. This problem only occurs when openvidu and kurento are on the same host. There is no problem if they are on different hosts.

I use openvidu: 2.15, kurento: 6.15.

log when reconnect fails

[INFO] 2021-01-11 15:09:27,517 [nioEventLoopGroup-2-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  channel closed
[DEBUG] 2021-01-11 15:09:27,517 [nioEventLoopGroup-2-1] org.kurento.jsonrpc.client.AbstractJsonRpcClientWebSocket - [KurentoClient] JsonRpcWsClient disconnected from ws://192.168.13.79:8888/kurento because Channel closed.
[DEBUG] 2021-01-11 15:09:27,518 [nioEventLoopGroup-2-1] org.kurento.jsonrpc.client.JsonRpcClient - Disabling heartbeat. Interrupt if running is false
[INFO] 2021-01-11 15:09:27,518 [AbstractJsonRpcClientWebSocket-reqResEventExec-e2-t0] io.openvidu.server.kurento.kms.KmsManager - Kurento Client "disconnected" event for KMS ws://192.168.13.79:8888/kurento [org.kurento.client.KurentoClient@7c56720b]. Waiting reconnection      
[DEBUG] 2021-01-11 15:09:27,544 [AbstractJsonRpcClientWebSocket-disconnectExec-e3-t0] org.kurento.jsonrpc.client.AbstractJsonRpcClientWebSocket - [KurentoClient]  JsonRpcWsClient reconnecting to ws://192.168.13.79:8888/kurento. 
[DEBUG] 2021-01-11 15:09:27,561 [AbstractJsonRpcClientWebSocket-disconnectExec-e3-t0] org.kurento.jsonrpc.client.AbstractJsonRpcClientWebSocket - [KurentoClient]  Connecting webSocket client to server ws://192.168.13.79:8888/kurento
[INFO] 2021-01-11 15:09:27,562 [AbstractJsonRpcClientWebSocket-disconnectExec-e3-t0] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Connecting native client
[INFO] 2021-01-11 15:09:27,563 [AbstractJsonRpcClientWebSocket-disconnectExec-e3-t0] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Closing previously existing channel when connecting native client
[DEBUG] 2021-01-11 15:09:27,563 [AbstractJsonRpcClientWebSocket-disconnectExec-e3-t0] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Closing client
[INFO] 2021-01-11 15:09:27,565 [nioEventLoopGroup-2-2] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Initiating new Netty channel. Will create new handler too!
[DEBUG] 2021-01-11 15:09:27,568 [nioEventLoopGroup-2-2] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  channel active
[DEBUG] 2021-01-11 15:09:27,569 [nioEventLoopGroup-2-2] io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker13 - WebSocket version 13 client handshake key: 7nds75+yFzAZRtINXvipqA==, expected response: rjj3TeeZZIg7bW14DflZq52cIlQ=
[DEBUG] 2021-01-11 15:09:53,589 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Closing client
[DEBUG] 2021-01-11 15:09:53,594 [nioEventLoopGroup-2-1] io.netty.buffer.PoolThreadCache - Freed 5 thread-local buffer(s) from thread: nioEventLoopGroup-2-1
[ERROR] 2021-01-11 15:09:53,598 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
[DEBUG] 2021-01-11 15:09:55,604 [nioEventLoopGroup-2-2] io.netty.buffer.PoolThreadCache - Freed 3 thread-local buffer(s) from thread: nioEventLoopGroup-2-2
[WARN] 2021-01-11 15:10:18,628 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with channel == null
[WARN] 2021-01-11 15:10:18,629 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with group == null
[ERROR] 2021-01-11 15:10:18,630 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
[WARN] 2021-01-11 15:10:43,672 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with channel == null
[WARN] 2021-01-11 15:10:43,673 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with group == null
[ERROR] 2021-01-11 15:10:43,674 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
[WARN] 2021-01-11 15:11:08,703 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with channel == null
[WARN] 2021-01-11 15:11:08,703 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with group == null
[ERROR] 2021-01-11 15:11:08,703 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
[WARN] 2021-01-11 15:11:33,708 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with channel == null
[WARN] 2021-01-11 15:11:33,709 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with group == null
[ERROR] 2021-01-11 15:11:33,711 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
[WARN] 2021-01-11 15:11:58,739 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with channel == null
[WARN] 2021-01-11 15:11:58,739 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with group == null
[ERROR] 2021-01-11 15:11:58,740 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
[WARN] 2021-01-11 15:12:23,754 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with channel == null
[WARN] 2021-01-11 15:12:23,755 [Timer-1] org.kurento.jsonrpc.client.JsonRpcClientNettyWebSocket - [KurentoClient]  Trying to close a JsonRpcClientNettyWebSocket with group == null
[ERROR] 2021-01-11 15:12:23,756 [Timer-1] io.openvidu.server.kurento.kms.KmsManager - According to Timer KMS with uri ws://192.168.13.79:8888/kurento and KurentoClient [org.kurento.client.KurentoClient@7c56720b] is not reconnected yet. Exception org.kurento.commons.TimeoutRuntimeException
2

Are you using openvidu-kms development docker image or production image?

3

i use kurento/kurento-media-server(Docker Hub) and openvidu is non-docker.

4

Hello @EuiSung_Ahn,

We can not provide support for custom deployments of OpenVidu components.

If you try with official deployment procedure and the issue still exists please report us.

Regards

5

thanks for the answer.
but I didn’t really understand what the “official deployment procedure” meant.
i used the official kurento-media-server image registered on dockerhub, and openvidu-server is also using without modification. what do I need to do to get support.
i would appreciate it if you let me know.

6

You should follow our deployment documentation OpenVidu Docs

This is the official procedure.

Regards

7

thanks for your answer.