Comments API calls failing in production environments

[AmritSprinklr]

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Please run down the following list and make sure you've tried the usual "quick fixes":

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Environment details

Environment details
Specify the API at the beginning of the title. For example, "BigQuery: ...").
General, Core, and Other are also allowed as types : Youtube Data API

OS type and version: N/A

Java version: 8

google-api-client version(s): 1.21,1.23

Steps to reproduce
Whenever we hit these API it is intermittently throwing exception for which the stack trace is attached.

GET https://www.googleapis.com/youtube/v3/commentThreads
GET https://www.googleapis.com/youtube/v3/playlistItems
Stack trace

Caused by: 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:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
	at sun.security.ssl.InputRecord.read(InputRecord.java:503)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975)
	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933)
	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
	at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
	at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
	at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
	at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:735)
	at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:678)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1593)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
	at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:352)
	at com.google.api.client.http.javanet.NetHttpResponse.<init>(NetHttpResponse.java:36)
	at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:144)
	at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:79)
	at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:996)
	at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:541)
	at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:474)
	at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:591)
 

Caused by: java.net.ConnectException: Connection timed out (Connection timed out)\n\tat java.net.PlainSocketImpl.socketConnect(Native Method)\n\tat java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)\n\tat java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)\n\tat java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)\n\tat java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)\n\tat java.net.Socket.connect(Socket.java:606)\n\tat sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)\n\tat sun.net.NetworkClient.doConnect(NetworkClient.java:175)\n\tat sun.net.www.http.HttpClient.openServer(HttpClient.java:463)\n\tat sun.net.www.http.HttpClient.openServer(HttpClient.java:558)\n\tat sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)\n\tat sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)\n\tat sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)\n\tat sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1162)\n\tat sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056)\n\tat sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)\n\tat sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167)\n\tat com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:143)\n\tat com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:79)\n\tat com.google.api.client.http.HttpRequest.execute(HttpRequest.java:996)\n\tat com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:541)\n\tat com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:474)\n\tat com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:591) 

External references such as API reference guides

PlaylistItems: list | YouTube Data API | Google Developers

CommentThreads: list | YouTube Data API | Google Developers

Thanks!

[Neenu1995]

java.net.SocketTimeoutException could mean a connection issue and a bug in the code. It would need more information to debug this issue.
If you have a support contract with Google, please create an issue in the support console instead of filing on GitHub. This will ensure a timely response.

The youtube team is also providing support over Stack Overflow.

[AmritSprinklr]

This was already raised on issuetracker. which suggested us to raise the issue over github.

[burkedavison]

Closing this issue due to lack of information.