Open exalate-issue-sync[bot] opened 1 year ago
JIRA Issue Migration Info
Jira Issue: PUBDEV-7674 Assignee: New H2O Bugs Reporter: Tomas Fryda State: Open Fix Version: N/A Attachments: Available (Count: 1) Development PRs: N/A
Attachments From Jira
Attachment Name: Screenshot 2020-07-07 at 17.12.16.png Attached By: Tomas Fryda File Link:https://h2o-3-jira-github-migration.s3.amazonaws.com/PUBDEV-7674/Screenshot 2020-07-07 at 17.12.16.png
After some time (~ couple thousand rapid calls) it got stuck. From wireshark, I was able to determine that R for some reason switches to IPv6 (see the attached screenshot) and gets stuck. The following
h2o.init(ip = "127.0.0.1")
appears to mitigate this issue.This issue happened on macOS 10.15.5. /etc/hosts contains both 127.0.0.1 and ::1 as localhost.
I was able to replicate this on the same system with R 3.3.3 and 4.0.2 which leads me to believe that it might be an issue with RCurl.
{quote}> RCurl::curlVersion() $age [1] 4
$version [1] "7.64.1"
$vesion_num [1] 475137
$host [1] "x86_64-apple-darwin19.0"
$features ipv6 ssl libz ntlm asynchdns spnego largefile ntlm_wb 1 4 8 16 128 256 512 32768
$ssl_version [1] "(SecureTransport) LibreSSL/2.8.3"
$ssl_version_num [1] 0
$libz_version [1] "1.2.11"
$protocols [1] "dict" "file" "ftp" "ftps" "gopher" "http" "https" "imap" "imaps" [10] "ldap" "ldaps" "pop3" "pop3s" "rtsp" "smb" "smbs" "smtp" "smtps" [19] "telnet" "tftp"
$ares [1] ""
$ares_num [1] 0
$libidn [1] ""{quote}
!Screenshot 2020-07-07 at 17.12.16.png|thumbnail!