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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-402146707 All things said, the change is still valid and more efficient than the code that was there before, so I am going to keep trying to get the CI build to pass and if it does, merge this. ---------------------------------------------------------------- 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 > 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 > Priority: Blocker > 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)