[
https://issues.apache.org/jira/browse/THRIFT-4591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16533957#comment-16533957
]
ASF GitHub Bot commented on THRIFT-4591:
----------------------------------------
jeking3 commented on issue #1566: THRIFT-4591:cannot read call result via lua
lib
URL: https://github.com/apache/thrift/pull/1566#issuecomment-402800710
"THRIFT_EAGAIN (unavailable resources)" means your process ran out of
resources; you may want to look at your process limits, or see if you are
sending a message too large (but not larger than the maximum frame size).
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
> lua client uses two write() calls per framed message send
> ---------------------------------------------------------
>
> Key: THRIFT-4591
> URL: https://issues.apache.org/jira/browse/THRIFT-4591
> Project: Thrift
> Issue Type: Improvement
> Components: Lua - Library
> Affects Versions: 0.11.0
> Reporter: allen_lee
> Assignee: James E. King III
> Priority: Minor
> Fix For: 0.12.0
>
> Attachments: 9090.pcap, 9090_1.pcap
>
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> 1) realize thrift server with TNonblockingServer via c++;
> 2) realize thrift client via lua lib and choose frame transport.
> 3) call remote interface failed with "TTransportException:0: Default
> (unknown)" print, and the server show "TConnection::workSocket():
> THRIFT_EAGAIN (unavailable resources)" error.
> 4)investigate this fault with tcpdump tool, attachment 9090.pcap show the
> frame msg doesnot contains frame size field, the rifht situation of
> attachment 9090_1.pcap show the frame msg contains 4 bytes (00 00 00 25)
> before protocol id field.
> 5) dig into the fault and tried to find root cause, then i found there is an
> fault in TFramedTransport:flush function in TFramedTransport.lua file. the
> original realization is:
> -----
> function TFramedTransport:flush()
> if self.doWrite == false then
> return self.trans:flush()
> end
> -- If the write fails we still want wBuf to be clear
> local tmp = self.wBuf
> self.wBuf = ''
> local frame_len_buf = libluabpack.bpack("i", string.len(tmp))
> self.trans:write(frame_len_buf)
> self.trans:write(tmp)
> self.trans:flush()
> end
> -----
> which send frame size file and reset msg content independently.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
