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hydra-queue-runner: Detect changes to the scheduling shares

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This commit is contained in:
Eelco Dolstra
2015-08-12 13:17:56 +02:00
parent 2e3899ed27
commit d4759c1da2
4 changed files with 52 additions and 9 deletions
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35
src/hydra-queue-runner/queue-monitor.cc
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@@ -26,6 +26,7 @@ void State::queueMonitorLoop()
receiver buildsCancelled(*conn, "builds_cancelled");
receiver buildsDeleted(*conn, "builds_deleted");
receiver buildsBumped(*conn, "builds_bumped");
receiver jobsetSharesChanged(*conn, "jobset_shares_changed");
auto store = openStore(); // FIXME: pool
@@ -49,6 +50,10 @@ void State::queueMonitorLoop()
printMsg(lvlTalkative, "got notification: builds cancelled or bumped");
processQueueChange(*conn);
}
if (jobsetSharesChanged.get()) {
printMsg(lvlTalkative, "got notification: jobset shares changed");
processJobsetSharesChange(*conn);
}
}
}
@@ -410,12 +415,13 @@ Step::ptr State::createStep(std::shared_ptr<StoreAPI> store, const Path & drvPat
Jobset::ptr State::createJobset(pqxx::work & txn,
const std::string & projectName, const std::string & jobsetName)
{
auto jobsets_(jobsets.lock());
auto p = std::make_pair(projectName, jobsetName);
auto i = jobsets_->find(p);
if (i != jobsets_->end()) return i->second;
{
auto jobsets_(jobsets.lock());
auto i = jobsets_->find(p);
if (i != jobsets_->end()) return i->second;
}
auto res = txn.parameterized
("select schedulingShares from Jobsets where project = $1 and name = $2")
@@ -423,9 +429,9 @@ Jobset::ptr State::createJobset(pqxx::work & txn,
if (res.empty()) throw Error("missing jobset - can't happen");
auto shares = res[0]["schedulingShares"].as<unsigned int>();
if (shares == 0) shares = 1;
auto jobset = std::make_shared<Jobset>(shares);
auto jobset = std::make_shared<Jobset>();
jobset->setShares(shares);
/* Load the build steps from the last 24 hours. */
res = txn.parameterized
@@ -438,6 +444,23 @@ Jobset::ptr State::createJobset(pqxx::work & txn,
jobset->addStep(startTime, stopTime - startTime);
}
auto jobsets_(jobsets.lock());
// Can't happen because only this thread adds to "jobsets".
assert(jobsets_->find(p) == jobsets_->end());
(*jobsets_)[p] = jobset;
return jobset;
}
void State::processJobsetSharesChange(Connection & conn)
{
/* Get the current set of jobsets. */
pqxx::work txn(conn);
auto res = txn.exec("select project, name, schedulingShares from Jobsets");
for (auto const & row : res) {
auto jobsets_(jobsets.lock());
auto i = jobsets_->find(std::make_pair(row["project"].as<string>(), row["name"].as<string>()));
if (i == jobsets_->end()) continue;
i->second->setShares(row["schedulingShares"].as<unsigned int>());
}
}