Graylog giving 502 error

 com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:181) [graylog.jar:?]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.io.IOException: Connection closed
    	at org.glassfish.grizzly.asyncqueue.TaskQueue.onClose(TaskQueue.java:331) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.onClose(AbstractNIOAsyncQueueWriter.java:501) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.transport.TCPNIOTransport.closeConnection(TCPNIOTransport.java:402) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.NIOConnection.doClose(NIOConnection.java:647) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.NIOConnection$6.run(NIOConnection.java:613) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.DefaultSelectorHandler.execute(DefaultSelectorHandler.java:238) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.NIOConnection.terminate0(NIOConnection.java:607) ~[graylog.jar:?]
    	at org.glassfish.grizzly.nio.transport.TCPNIOConnection.terminate0(TCPNIOConnection.java:291) ~[graylog.jar:?]
og2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more
    2019-05-02 13:07:37,976 WARN : org.graylog2.shared.rest.resources.ProxiedResource - Unable to call https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
    java.net.SocketTimeoutException: timeout
    	at okio.Okio$4.newTimeoutException(Okio.java:232) ~[graylog.jar:?]
    	at okio.AsyncTimeout.exit(AsyncTimeout.java:285) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:241) ~[graylog.jar:?]
    	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:355) ~[graylog.jar:?]
    	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:227) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:215) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189) ~[graylog.jar:?]
    	at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at org.graylog2.rest.RemoteInterfaceProvider.lambda$get$0(RemoteInterfaceProvider.java:61) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[graylog.jar:?]
    	at okhttp3.RealCall.execute(RealCall.java:77) ~[graylog.jar:?]
    	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180) ~[graylog.jar:?]
    	at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more
    2019-05-02 13:07:53,971 WARN : org.graylog2.shared.rest.resources.ProxiedResource - Unable to call https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
    java.net.SocketTimeoutException: timeout
    	at okio.Okio$4.newTimeoutException(Okio.java:232) ~[graylog.jar:?]
    	at okio.AsyncTimeout.exit(AsyncTimeout.java:285) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:241) ~[graylog.jar:?]
    	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:355) ~[graylog.jar:?]
    	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:227) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:215) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189) ~[graylog.jar:?]
    	at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at org.graylog2.rest.RemoteInterfaceProvider.lambda$get$0(RemoteInterfaceProvider.java:61) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[graylog.jar:?]
    	at okhttp3.RealCall.execute(RealCall.java:77) ~[graylog.jar:?]
    	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180) ~[graylog.jar:?]
    	at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more
    2019-05-02 13:08:11,972 WARN : org.graylog2.shared.rest.resources.ProxiedResource - Unable to call https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
    java.net.SocketTimeoutException: timeout
    	at okio.Okio$4.newTimeoutException(Okio.java:232) ~[graylog.jar:?]
    	at okio.AsyncTimeout.exit(AsyncTimeout.java:285) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:241) ~[graylog.jar:?]
    	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:355) ~[graylog.jar:?]
    	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:227) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:215) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189) ~[graylog.jar:?]
    	at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at org.graylog2.rest.RemoteInterfaceProvider.lambda$get$0(RemoteInterfaceProvider.java:61) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[graylog.jar:?]
    	at okhttp3.RealCall.execute(RealCall.java:77) ~[graylog.jar:?]
    	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180) ~[graylog.jar:?]
    	at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more
    2019-05-02 13:08:28,773 WARN : org.graylog2.shared.rest.resources.ProxiedResource - Unable to call https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
    java.net.SocketTimeoutException: timeout
    	at okio.Okio$4.newTimeoutException(Okio.java:232) ~[graylog.jar:?]
    	at okio.AsyncTimeout.exit(AsyncTimeout.java:285) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:241) ~[graylog.jar:?]
    	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:355) ~[graylog.jar:?]
    	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:227) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:215) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189) ~[graylog.jar:?]
    	at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at org.graylog2.rest.RemoteInterfaceProvider.lambda$get$0(RemoteInterfaceProvider.java:61) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[graylog.jar:?]
    	at okhttp3.RealCall.execute(RealCall.java:77) ~[graylog.jar:?]
    	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180) ~[graylog.jar:?]
    	at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more
    2019-05-02 13:08:45,474 WARN : org.graylog2.shared.rest.resources.ProxiedResource - Unable to call https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
    java.net.SocketTimeoutException: timeout
    	at okio.Okio$4.newTimeoutException(Okio.java:232) ~[graylog.jar:?]
    	at okio.AsyncTimeout.exit(AsyncTimeout.java:285) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:241) ~[graylog.jar:?]
    	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:355) ~[graylog.jar:?]
    	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:227) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:215) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189) ~[graylog.jar:?]
    	at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at org.graylog2.rest.RemoteInterfaceProvider.lambda$get$0(RemoteInterfaceProvider.java:61) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[graylog.jar:?]
    	at okhttp3.RealCall.execute(RealCall.java:77) ~[graylog.jar:?]
    	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180) ~[graylog.jar:?]
    	at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more
    2019-05-02 13:09:05,772 WARN : org.graylog2.shared.rest.resources.ProxiedResource - Unable to call https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
    java.net.SocketTimeoutException: timeout
    	at okio.Okio$4.newTimeoutException(Okio.java:232) ~[graylog.jar:?]
    	at okio.AsyncTimeout.exit(AsyncTimeout.java:285) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:241) ~[graylog.jar:?]
    	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:355) ~[graylog.jar:?]
    	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:227) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:215) ~[graylog.jar:?]
    	at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189) ~[graylog.jar:?]
    	at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at org.graylog2.rest.RemoteInterfaceProvider.lambda$get$0(RemoteInterfaceProvider.java:61) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[graylog.jar:?]
    	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[graylog.jar:?]
    	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[graylog.jar:?]
    	at okhttp3.RealCall.execute(RealCall.java:77) ~[graylog.jar:?]
    	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180) ~[graylog.jar:?]
    	at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:78) ~[graylog.jar:?]
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_212]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_212]
    	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
    Caused by: java.net.SocketTimeoutException: Read timed out
    	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_212]
    	at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) ~[?:1.8.0_212]
    	at sun.security.ssl.InputRecord.read(InputRecord.java:503) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[?:1.8.0_212]
    	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933) ~[?:1.8.0_212]
    	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) ~[?:1.8.0_212]
    	at okio.Okio$2.read(Okio.java:140) ~[graylog.jar:?]
    	at okio.AsyncTimeout$2.read(AsyncTimeout.java:237) ~[graylog.jar:?]
    	... 28 more

Sometime output is coming sometime 502 bad gateway.

would you be so kind and format your postings …

I guess

https://test-logs.wotnot.io/api/system/jobs on node <458cfef5-819c-488b-80f8-3779ad291b61>
java.net.SocketTimeoutException: timeout

you have some issues with the DNS …

I an running this on kubernetes so DNS manage by kubernetes only internally.

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