allen_lee created THRIFT-4591:
---------------------------------
Summary: cannot read call result via lua lib
Key: THRIFT-4591
URL: https://issues.apache.org/jira/browse/THRIFT-4591
Project: Thrift
Issue Type: Bug
Components: Lua - Library
Affects Versions: 0.11.0
Reporter: allen_lee
Fix For: 0.12.0
Attachments: 9090.pcap, 9090_1.pcap
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)
