Was wondering if anyone has any suggestions for getting DataTables to work when delivering ShinyProxy v. 2.4.1 with Kubernetes via an NGINX ingress controller.
We are getting an error message: DataTables warning: table id=DataTables_Table_1 - Ajax error. For more information about this error, please see http://datatables.net/tn/7, and the DataTable has column names, but no data.
Our config.
We are running shinyproxy (2.4.1) from a Kubernetes cluster with an NGINX ingress controller. We have set NGINX to have “sticky sessions.” Authentication is being handled by openID and Azure Active Directory.
The config works with shinyproxy 2.3.1. We would just revert back to 2.3.1 but we need the kubernetes-pod-patches from 2.4.1 to mount a Persistent Volume to our cluster.
Below are copies of our application.yml and the relevant parts of the logs from shinyproxy.
application.yml:
proxy:
container-wait-time: 60000
port: 8080
authentication: openid
openid:
auth-url: https://login.microsoftonline.com/REDACTED/oauth2/authorize
token-url: https://login.microsoftonline.com/REDACTED/oauth2/token
jwks-url: https://login.microsoftonline.com/common/discovery/keys
client-id: REDACTED
client-secret: "REDACTED"
container-backend: kubernetes
kubernetes:
internal-networking: true
url: http://localhost:8001
image-pull-policy: Always
image-pull-secret: REDACTED
specs:
- id: 01_hello
display-name: Hello Application
description: Application which demonstrates the basics of a Shiny app
container-cmd: ["R", "-e", "shinyproxy::run_01_hello()"]
container-image: openanalytics/shinyproxy-demo
- id: debug_app
display-name: debug DT app
description: Tiny app for debugging DataTables
container-cmd: ["R", "-e", "shiny::runApp('/srv/shiny-server/debug_app/')"] #
container-image: shinyrepo.azurecr.io/debug_dt
server:
useForwardHeaders: true
container-protocol: http
Here are the logs from shinyproxy:
2020-11-18 05:15:32.419 INFO 1 — [ XNIO-1 task-3] e.o.containerproxy.service.ProxyService : Proxy activated [user: smlehman@gmail.com] [spec: debug_app] [id: ea94d85a-0983-492d-b4c9-876bba434b19]
2020-11-18 05:15:33.226 ERROR 1 — [ XNIO-1 I/O-1] io.undertow.proxy : UT005028: Proxy request to /proxy_endpoint/ea94d85a-0983-492d-b4c9-876bba434b19/session/cda0314d18ef8f62a2a0d149b2c0e7fd/dataobj/dtTable failed
io.undertow.server.TruncatedResponseException: null
at io.undertow.client.http.HttpRequestConduit.truncateWrites(HttpRequestConduit.java:711) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.conduits.AbstractFixedLengthStreamSinkConduit.terminateWrites(AbstractFixedLengthStreamSinkConduit.java:256) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at org.xnio.conduits.ConduitStreamSinkChannel.shutdownWrites(ConduitStreamSinkChannel.java:178) ~[xnio-api-3.8.0.Final.jar!/:3.8.0.Final]
at io.undertow.channels.DetachableStreamSinkChannel.shutdownWrites(DetachableStreamSinkChannel.java:79) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyHandler$HTTPTrailerChannelListener.handleEvent(ProxyHandler.java:754) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyHandler$ProxyAction$1.completed(ProxyHandler.java:646) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyHandler$ProxyAction$1.completed(ProxyHandler.java:561) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.client.http.HttpClientExchange.invokeReadReadyCallback(HttpClientExchange.java:212) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.client.http.HttpClientConnection.initiateRequest(HttpClientConnection.java:414) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.client.http.HttpClientConnection.sendRequest(HttpClientConnection.java:347) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyHandler$ProxyAction.run(ProxyHandler.java:561) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.util.SameThreadExecutor.execute(SameThreadExecutor.java:35) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.HttpServerExchange.dispatch(HttpServerExchange.java:821) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyHandler$ProxyClientHandler.completed(ProxyHandler.java:316) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyHandler$ProxyClientHandler.completed(ProxyHandler.java:290) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyConnectionPool.connectionReady(ProxyConnectionPool.java:353) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.ProxyConnectionPool.connect(ProxyConnectionPool.java:548) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.server.handlers.proxy.LoadBalancingProxyClient.getConnection(LoadBalancingProxyClient.java:316) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at eu.openanalytics.containerproxy.util.ProxyMappingManager$1.getConnection(ProxyMappingManager.java:88) ~[containerproxy-0.8.5.jar!/:0.8.5]
at io.undertow.server.handlers.proxy.ProxyHandler$ProxyClientHandler.run(ProxyHandler.java:310) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612) ~[xnio-nio-3.8.0.Final.jar!/:3.8.0.Final]
at org.xnio.nio.WorkerThread.run(WorkerThread.java:479) ~[xnio-nio-3.8.0.Final.jar!/:3.8.0.Final]
2020-11-18 05:16:52.454 INFO 1 --- [tiveProxyKiller] e.o.c.service.HeartbeatService : Releasing inactive proxy [user: smlehman@gmail.com] [spec: debug_app] [id: ea94d85a-0983-492d-b4c9-876bba434b19] [silence: 66451ms]
2020-11-18 05:16:52.480 INFO 1 --- [pool-2-thread-1] e.o.containerproxy.service.ProxyService : Proxy released [user: smlehman@gmail.com] [spec: debug_app] [id: ea94d85a-0983-492d-b4c9-876bba434b19]
2020-11-18 05:16:54.575 ERROR 1 --- [ XNIO-1 I/O-1] io.undertow.proxy : UT005028: Proxy request to /proxy_endpoint/ea94d85a-0983-492d-b4c9-876bba434b19/session/cda0314d18ef8f62a2a0d149b2c0e7fd/dataobj/dtTable failed
java.io.IOException: UT001000: Connection closed
at io.undertow.client.http.HttpClientConnection$ClientReadListener.handleEvent(HttpClientConnection.java:581) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at io.undertow.client.http.HttpClientConnection$ClientReadListener.handleEvent(HttpClientConnection.java:516) ~[undertow-core-2.1.4.Final.jar!/:2.1.4.Final]
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) ~[xnio-api-3.8.0.Final.jar!/:3.8.0.Final]
at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66) ~[xnio-api-3.8.0.Final.jar!/:3.8.0.Final]
at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89) ~[xnio-nio-3.8.0.Final.jar!/:3.8.0.Final]
at org.xnio.nio.WorkerThread.run(WorkerThread.java:591) ~[xnio-nio-3.8.0.Final.jar!/:3.8.0.Final]