{"action":"created","comment":{"url":"https://api.github.com/repos/elastic/elasticsearch/pulls/comments/70117742","id":70117742,"diff_hunk":"@@ -826,7 +830,12 @@ protected void onException(Channel channel, Exception e) {\n         } else if (e instanceof TcpTransport.HttpOnTransportException) {\n             // in case we are able to return data, serialize the exception content and sent it back to the client\n             if (isOpen(channel)) {\n-                sendMessage(channel, new BytesArray(e.getMessage().getBytes(StandardCharsets.UTF_8)), () -> {}, true);\n+                try {\n+                    sendMessage(channel, new BytesArray(e.getMessage().getBytes(StandardCharsets.UTF_8)), () -> {\n+                    }, true);\n+                } catch (IOException ex) {\n+                    logger.trace(\"failed to send error message back to client\", ex);","path":"core/src/main/java/org/elasticsearch/transport/TcpTransport.java","position":81,"original_position":81,"commit_id":"8b1835b5e4c8e02b494d51463e33780e7ae3fc14","original_commit_id":"8b1835b5e4c8e02b494d51463e33780e7ae3fc14","user":{"login":"rjernst","id":289412,"avatar_url":"https://avatars.githubusercontent.com/u/289412?v=3","gravatar_id":"","url":"https://api.github.com/users/rjernst","html_url":"https://github.com/rjernst","followers_url":"https://api.github.com/users/rjernst/followers","following_url":"https://api.github.com/users/rjernst/following{/other_user}","gists_url":"https://api.github.com/users/rjernst/gists{/gist_id}","starred_url":"https://api.github.com/users/rjernst/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rjernst/subscriptions","organizations_url":"https://api.github.com/users/rjernst/orgs","repos_url":"https://api.github.com/users/rjernst/repos","events_url":"https://api.github.com/users/rjernst/events{/privacy}","received_events_url":"https://api.github.com/users/rjernst/received_events","type":"User","site_admin":false},"body":"same here, trace only? can we at least have a comment explaining why it is ok to swallow these exceptions, and justifying the debug level? otherwise a reader trying to understand this code will just think \"why are we swallowing exceptions\"","created_at":"2016-07-08T18:18:49Z","updated_at":"2016-07-08T18:18:49Z","html_url":"https://github.com/elastic/elasticsearch/pull/19332#discussion_r70117742","pull_request_url":"https://api.github.com/repos/elastic/elasticsearch/pulls/19332","_links":{"self":{"href":"https://api.github.com/repos/elastic/elasticsearch/pulls/comments/70117742"},"html":{"href":"https://github.com/elastic/elasticsearch/pull/19332#discussion_r70117742"},"pull_request":{"href":"https://api.github.com/repos/elastic/elasticsearch/pulls/19332"}}},"pull_request":{"url":"https://api.github.com/repos/elastic/elasticsearch/pulls/19332","id":76751123,"html_url":"https://github.com/elastic/elasticsearch/pull/19332","diff_url":"https://github.com/elastic/elasticsearch/pull/19332.diff","patch_url":"https://github.com/elastic/elasticsearch/pull/19332.patch","issue_url":"https://api.github.com/repos/elastic/elasticsearch/issues/19332","number":19332,"state":"open","locked":false,"title":"Add blocking socket based MockTcpTransport","user":{"login":"s1monw","id":973334,"avatar_url":"https://avatars.githubusercontent.com/u/973334?v=3","gravatar_id":"","url":"https://api.github.com/users/s1monw","html_url":"https://github.com/s1monw","followers_url":"https://api.github.com/users/s1monw/followers","following_url":"https://api.github.com/users/s1monw/following{/other_user}","gists_url":"https://api.github.com/users/s1monw/gists{/gist_id}","starred_url":"https://api.github.com/users/s1monw/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/s1monw/subscriptions","organizations_url":"https://api.github.com/users/s1monw/orgs","repos_url":"https://api.github.com/users/s1monw/repos","events_url":"https://api.github.com/users/s1monw/events{/privacy}","received_events_url":"https://api.github.com/users/s1monw/received_events","type":"User","site_admin":false},"body":"Today we have a bunch of tests that use netty transport for several reasons\r\nthese tests use it because they need to run some tcp based transport. 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