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properly deal with clients that talked to another campaign server before

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A campaign server now tells all clients a unique run ID (the UNIX timestamp
when it was started).  This allows us to ignore results from "old" clients
that talked to another server before, and to tell them to die.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1677 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
This commit is contained in:
hsc
2012-09-23 17:28:07 +00:00
parent 8c7f8f62d0
commit 7513dacad1
5 changed files with 30 additions and 2 deletions
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13
src/core/cpn/JobServer.cc
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@ -199,10 +199,23 @@ void CommThread::operator()()
switch (ctrlmsg.command()) {
case FailControlMessage_Command_NEED_WORK:
// let old clients die
if (!ctrlmsg.has_run_id() || (ctrlmsg.run_id() != 0 && ctrlmsg.run_id() != m_js.m_runid)) {
cout << "!![Server] telling old client to die" << endl;
ctrlmsg.Clear();
ctrlmsg.set_command(FailControlMessage_Command_DIE);
ctrlmsg.set_build_id(42);
SocketComm::sendMsg(minion.getSocketDescriptor(), ctrlmsg);
}
// give minion something to do..
sendPendingExperimentData(minion);
break;
case FailControlMessage_Command_RESULT_FOLLOWS:
// ignore old client's results
if (!ctrlmsg.has_run_id() || (ctrlmsg.run_id() != 0 && ctrlmsg.run_id() != m_js.m_runid)) {
cout << "!![Server] ignoring old client's results" << endl;
break;
}
// get results and put to done queue.
receiveExperimentResults(minion, ctrlmsg.workloadid());
break;