org.lightcouch.CouchDbException: java.net.SocketException: Connection reset

[Arpit Malhotra]

 I get the org.lightcouch.CouchDbException: java.net.SocketException: Connection reset every once in a while. The couchdb logs show nothing special - I see an index update going on. Can you advise what could be causing the connection reset. 

Logs in my code

Uncaught exception in thread XYZThread_1404403800000_5. Exiting with error code 2 org.lightcouch.CouchDbException: java.net.SocketException: Connection reset

Caused by: org.lightcouch.CouchDbException: java.net.SocketException: Connection reset

        at org.lightcouch.CouchDbClientBase.executeRequest(CouchDbClientBase.java:272)

        at org.lightcouch.CouchDbClientBase.post(CouchDbClientBase.java:242)

        at org.lightcouch.CouchDbClient.bulk(CouchDbClient.java:342)

        at com.abc.store.core.StoreClient.bulk(StoreClient.java:154)

        at com.abc.store.core.Store.bulkSaveOrUpdate(Store.java:349)

        ... 4 more

Caused by: java.net.SocketException: Connection reset

        at java.net.SocketInputStream.read(SocketInputStream.java:196)

        at java.net.SocketInputStream.read(SocketInputStream.java:122)

        at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)

        at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:90)

        at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:281)

        at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:92)

        at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62)

        at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254)

        at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289)

        at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252)

        at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:191)

        at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300)

        at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)

        at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:715)

        at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:520)

        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)

        at org.lightcouch.CouchDbClientBase.executeRequest(CouchDbClientBase.java:268)

        ... 8 more

Couchdb logs at the same instance

[Thu, 03 Jul 2014 16:10:00 GMT] [info] [<0.137.0>] 127.0.0.1 - - POST /store/_bulk_docs 201

[Thu, 03 Jul 2014 16:10:11 GMT] [info] [<0.273.0>] Starting index update for db: store idx: _design/queries

[Thu, 03 Jul 2014 16:10:11 GMT] [info] [<0.273.0>] Index update finished for db: store idx: _design/queries

[Thu, 03 Jul 2014 16:10:11 GMT] [info] [<0.3679.21>] 127.0.0.1 - - GET /store/_design/queries/_view/docsByNameAndType?key=[%22Email%20Server%22,%22Server%22]&include_docs=true 200

[Ahmed Yehia]

Hi,

I think the problem is outside the code, the network between the client and the server might cause the exception, eg. the DB server abruptly close connections, running the client behind a proxy or firewall perhaps?

I 'd try running the code against another instance to verify.

Regards

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[Arpit Malhotra]

Hi Ahmed,

In my case both client and server are both running locally, no firewalls. I maintain a connection pool on top of your library which works well for me. The error happens once in like 21 days or so - intermittently. 

Typically one should get a  "Connection reset by peer" instead of  "Connection reset" to mark that there was problem with the server. It seems that the problem might be client side ? I am not sure of the reasons. Any advice would be helpful

[Ahmed Yehia]

Hi Aprit,

I 'm not sure what's causing the exception to be thrown. 

It does seem the client is closing the connection, but I 've seen cases where the Server causes the client to throw the same exception.

Good luck with finding a solution.

Regards