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Posted to issues@trafficserver.apache.org by "James Peach (JIRA)" <ji...@apache.org> on 2016/09/28 15:24:21 UTC

[jira] [Commented] (TS-4903) EISCONN errors when using TCP Fast Open.

    [ https://issues.apache.org/jira/browse/TS-4903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15529960#comment-15529960 ] 

James Peach commented on TS-4903:
---------------------------------

Here's what happens:
{noformat}
[pid 12346] sendmsg(57, {msg_name(16)={sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("x.x.x.x")}, msg_iov(1)=[{"GET /encr64kb.test HTTP/1.1\r\nCac"..., 433}], msg_controllen=0, msg_flags=0}, MSG_FASTOPEN) = -1 EINPROGRESS (Operation now in progress)
[pid 12346] sendmsg(57, {msg_name(16)={sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("x.x.x.x")}, msg_iov(1)=[{"GET /encr64kb.test HTTP/1.1\r\nCac"..., 433}], msg_controllen=0, msg_flags=0}, MSG_FASTOPEN) = 433
[pid 12346] sendmsg(57, {msg_name(16)={sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("x.x.x.x")}, msg_iov(1)=[{"GET /encr64kb.test HTTP/1.1\r\nCac"..., 433}], msg_controllen=0, msg_flags=0}, MSG_FASTOPEN) = -1 EISCONN (Transport endpoint is already connected)
{noformat}

Note that we are calling sendmsg(2) again, even though the previous call wrote the data.

> EISCONN errors when using TCP Fast Open.
> ----------------------------------------
>
>                 Key: TS-4903
>                 URL: https://issues.apache.org/jira/browse/TS-4903
>             Project: Traffic Server
>          Issue Type: Bug
>            Reporter: James Peach
>            Assignee: James Peach
>




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