Jira starts normally but doesn't respond via HTTP

[Ben McInturff]

I recently upgraded to Jira 7.7.1 and Jira was working normally. I am able to start Jira but the application doesn't respond via the url I have configured (via a proxy through apache) or via the host name and port. 

Looking at the logs, I have resolved all errors except one: 

2018-02-28 03:32:05,447 HealthCheck:thread-1 ERROR ServiceRunner [c.a.t.j.healthcheck.support.GadgetFeedUrlHealthCheck] An error occurred when performing the Gadget feed URL healthcheck
java.net.SocketTimeoutException: Read timed out
 at java.net.SocketInputStream.socketRead0(Native Method)
 at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
 at java.net.SocketInputStream.read(SocketInputStream.java:170)
 at java.net.SocketInputStream.read(SocketInputStream.java:141)
 at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:139)
 at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:155)
 at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:284)
 at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:138)
 at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)
 at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:261)
 at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:165)
 at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:165)
 at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:272)
 at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:124)
 at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
 at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
 at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
 at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)
 at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
 at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
 at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
 at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
 at com.atlassian.troubleshooting.jira.healthcheck.support.GadgetFeedUrlHealthCheck.check(GadgetFeedUrlHealthCheck.java:56)
 at com.atlassian.troubleshooting.healthcheck.impl.PluginSuppliedSupportHealthCheck.check(PluginSuppliedSupportHealthCheck.java:49)
 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 at java.lang.Thread.run(Thread.java:745)
2018-02-28 03:32:05,522 Caesium-1-3 DEBUG ServiceRunner [c.a.activeobjects.osgi.ActiveObjectsServiceFactory] getService bundle [com.atlassian.troubleshooting.plugin-jira]

 At this point I don't know what to do to get Jira back up and running. Any help would be appreciated. 

[Danyal Iqbal]

The stack trace is basically telling you that jira is unable to contact itself.

Was it accessible after the upgrade?What did you change recently ? since the last working condition?

Check your proxy configuration.

Restart the apache service e.g sudo service apache2 restart.