From 206f1814b295baab17747e5ed28ef0abe5c94147 Mon Sep 17 00:00:00 2001
From: Eric Cano <Eric.Cano@cern.ch>
Date: Tue, 26 Jun 2018 17:07:10 +0200
Subject: [PATCH] First implementation of generic popping from a container.
The unit test is disabled as it does not pass yet.
Templated some structures to reflect imperfect similarities between inserting and popping.
---
objectstore/Algorithms.hpp | 88 +++++++++---
objectstore/AlgorithmsTest.cpp | 16 ++-
objectstore/ArchiveQueueAlgorithms.cpp | 172 ++++++++++++++++++++++++
objectstore/ArchiveQueueAlgorithms.hpp | 136 ++++++++++---------
objectstore/CMakeLists.txt | 1 +
objectstore/ObjectOps.hpp | 5 +
objectstore/RetrieveQueueAlgorithms.hpp | 23 ++--
7 files changed, 341 insertions(+), 100 deletions(-)
create mode 100644 objectstore/ArchiveQueueAlgorithms.cpp
diff --git a/objectstore/Algorithms.hpp b/objectstore/Algorithms.hpp
index 323cd84478..549557a108 100644
--- a/objectstore/Algorithms.hpp
+++ b/objectstore/Algorithms.hpp
@@ -42,16 +42,20 @@ public:
typedef std::string ContainerAddress;
typedef std::string ElementAddress;
typedef std::string ContainerIdentifyer;
- class Element {};
- typedef std::list<std::unique_ptr<Element>> ElementMemoryContainer;
- typedef std::list <Element *> ElementPointerContainer;
+ struct InsertedElement {
+ typedef std::list<InsertedElement> list;
+ };
+ typedef std::list<std::unique_ptr<InsertedElement>> ElementMemoryContainer;
+ typedef std::list <InsertedElement *> ElementPointerContainer;
class ElementDescriptor {};
typedef std::list<ElementDescriptor> ElementDescriptorContainer;
- struct ElementOpFailure {
+
+ template <class Element>
+ struct OpFailure {
Element * element;
std::exception_ptr failure;
+ typedef std::list<OpFailure> list;
};
- typedef std::list<ElementOpFailure> ElementOpFailureContainer;
class PoppedElementsSummary;
class PopCriteria {
@@ -76,19 +80,26 @@ public:
PoppedElementsList elements;
PoppedElementsSummary summary;
};
+ typedef std::set<ElementAddress> ElementsToSkipSet;
CTA_GENERATE_EXCEPTION_CLASS(NoSuchContainer);
-
+
+ template <class Element>
static ElementAddress getElementAddress(const Element & e);
+
static void getLockedAndFetched(Container & cont, ScopedExclusiveLock & contLock, AgentReference & agRef, const ContainerIdentifyer & cId,
log::LogContext & lc);
static void getLockedAndFetchedNoCreate(Container & cont, ScopedExclusiveLock & contLock, const ContainerIdentifyer & cId,
log::LogContext & lc);
static void addReferencesAndCommit(Container & cont, ElementMemoryContainer & elemMemCont);
- void removeReferencesAndCommit(Container & cont, ElementOpFailureContainer & elementsOpFailures);
+ void removeReferencesAndCommit(Container & cont, typename OpFailure<InsertedElement>::list & elementsOpFailures);
void removeReferencesAndCommit(Container & cont, std::list<ElementAddress>& elementAddressList);
static ElementPointerContainer switchElementsOwnership(ElementMemoryContainer & elemMemCont, const ContainerAddress & contAddress,
const ContainerAddress & previousOwnerAddress, log::LogContext & lc);
+ template <class Element>
+ static PoppedElementsSummary getElementSummary(const Element &);
+ static PoppedElementsBatch getPoppingElementsCandidates(Container & cont, PopCriteria & unfulfilledCriteria,
+ ElementsToSkipSet & elemtsToSkip, log::LogContext & lc);
};
template <class C>
@@ -97,15 +108,14 @@ public:
ContainerAlgorithms(Backend & backend, AgentReference & agentReference):
m_backend(backend), m_agentReference(agentReference) {}
- typedef typename ContainerTraits<C>::Element Element;
- typedef typename ContainerTraits<C>::ElementMemoryContainer ElementMemoryContainer;
+ typedef typename ContainerTraits<C>::InsertedElement InsertedElement;
/** Reference objects in the container and then switch their ownership them. Objects
* are provided existing and owned by algorithm's agent. Returns a list of
* @returns list of elements for which the addition or ownership switch failed.
* @throws */
void referenceAndSwitchOwnership(const typename ContainerTraits<C>::ContainerIdentifyer & contId,
- typename ContainerTraits<C>::ElementMemoryContainer & elements, log::LogContext & lc) {
+ typename ContainerTraits<C>::InsertedElement::list & elements, log::LogContext & lc) {
C cont(m_backend);
ScopedExclusiveLock contLock;
ContainerTraits<C>::getLockedAndFetched(cont, contLock, m_agentReference, contId, lc);
@@ -143,52 +153,88 @@ public:
}
}
- typename ContainerTraits<C>::PoppedElementsBatch popNextBatch(typename ContainerTraits<C>::ContainerIdentifyer & contId,
+ typename ContainerTraits<C>::PoppedElementsBatch popNextBatch(const typename ContainerTraits<C>::ContainerIdentifyer & contId,
typename ContainerTraits<C>::PopCriteria & popCriteria, log::LogContext & lc) {
// Prepare the return value
typename ContainerTraits<C>::PoppedElementsBatch ret;
typename ContainerTraits<C>::PopCriteria unfulfilledCriteria = popCriteria;
size_t iterationCount=0;
+ typename ContainerTraits<C>::ElementsToSkipSet elementsToSkip;
while (ret.summary < popCriteria) {
// Get a container if it exists
C cont(m_backend);
iterationCount++;
+ ScopedExclusiveLock contLock;
try {
- typename ContainerTraits<C>::getLockedAndFetchedNoCreate(cont, contId, lc);
+ ContainerTraits<C>::getLockedAndFetchedNoCreate(cont, contLock, contId, lc);
} catch (typename ContainerTraits<C>::NoSuchContainer &) {
// We could not find a container to pop from: return what we have.
return ret;
}
// We have a container. Get candidate element list from it.
- typename ContainerTraits<C>::PoppingElementsCandidateList candidateElements =
- ContainerTraits<C>::getPoppingElementsCandidates(cont, unfulfilledCriteria, lc);
+ typename ContainerTraits<C>::PoppedElementsBatch candidateElements =
+ ContainerTraits<C>::getPoppingElementsCandidates(cont, unfulfilledCriteria, elementsToSkip, lc);
// Reference the candidates to our agent
std::list<typename ContainerTraits<C>::ElementAddress> candidateElementsAddresses;
- for (auto & e: candidateElements) {
+ for (auto & e: candidateElements.elements) {
candidateElementsAddresses.emplace_back(ContainerTraits<C>::getElementAddress(e));
}
m_agentReference.addBatchToOwnership(candidateElementsAddresses, m_backend);
// We can now attempt to switch ownership of elements
auto failedOwnershipSwitchElements = ContainerTraits<C>::switchElementsOwnership(candidateElements,
- m_agentReference.getAgentAddress(), cont.getAddressIfSet());
+ m_agentReference.getAgentAddress(), cont.getAddressIfSet(), lc);
if (failedOwnershipSwitchElements.empty()) {
- // This is the easy (and most common case). Everything went through fine.
- ContainerTraits<C>::removeReferencesAndCommit(candidateElementsAddresses);
+ // This is the easy case (and most common case). Everything went through fine.
+ ContainerTraits<C>::removeReferencesAndCommit(cont, candidateElementsAddresses);
+ contLock.release();
+ // All jobs are validated
+ ret.summary += candidateElements.summary;
+ unfulfilledCriteria -= candidateElements.summary;
+ ret.elements.insertBack(std::move(candidateElements.elements));
} else {
// For the failed files, we have to differentiate the not owned or not existing ones from other error cases.
// For the not owned, not existing and those successfully switched, we have to de reference them form the container.
// For other cases, we will leave the elements referenced in the container, as we cannot ensure de-referencing is safe.
std::set<typename ContainerTraits<C>::ElementAddress> elementsNotToDereferenceFromContainer;
+ std::set<typename ContainerTraits<C>::ElementAddress> elementsNotToReport;
+ std::list<typename ContainerTraits<C>::ElementAddress> elementsToDereferenceFromAgent;
for (auto &e: failedOwnershipSwitchElements) {
try {
throw e.failure;
- } catch (Backend::NoSuchObject &) {}
- catch (Backend::WrongPreviousOwner&) {}
+ } catch (Backend::NoSuchObject &) {
+ elementsToDereferenceFromAgent.push_back(ContainerTraits<C>::getElementAddress(*e.element));
+ elementsNotToReport.insert(ContainerTraits<C>::getElementAddress(*e.element));
+ } catch (Backend::WrongPreviousOwner &) {
+ elementsToDereferenceFromAgent.push_back(ContainerTraits<C>::getElementAddress(*e.element));
+ elementsNotToReport.insert(ContainerTraits<C>::getElementAddress(*e.element));
+ } catch (Backend::CouldNotUnlock&) {
+ // Do nothing, this element was indeed OK.
+ }
catch (...) {
// This is a different error, so we will leave the reference to the element in the container
elementsNotToDereferenceFromContainer.insert(ContainerTraits<C>::getElementAddress(*e.element));
+ elementsToDereferenceFromAgent.push_back(ContainerTraits<C>::getElementAddress(*e.element));
+ elementsNotToReport.insert(ContainerTraits<C>::getElementAddress(*e.element));
+ elementsToSkip.insert(ContainerTraits<C>::getElementAddress(*e.element));
}
- }
+ }
+ // We are done with the sorting. Apply the decisions...
+ std::list<typename ContainerTraits<C>::ElementAddress> elementsToDereferenceFromContainer;
+ for (auto & e: candidateElements.elements) {
+ if (!elementsNotToDereferenceFromContainer.count(ContainerTraits<C>::getElementAddress(e))) {
+ elementsToDereferenceFromContainer.push_back(ContainerTraits<C>::getElementAddress(e));
+ }
+ }
+ ContainerTraits<C>::removeReferencesAndCommit(cont, elementsToDereferenceFromContainer);
+ contLock.release();
+ m_agentReference.removeBatchFromOwnership(elementsToDereferenceFromAgent, m_backend);
+ for (auto & e: candidateElements.elements) {
+ if (!elementsNotToReport.count(ContainerTraits<C>::getElementAddress(e))) {
+ ret.summary += ContainerTraits<C>::getElementSummary(e);
+ unfulfilledCriteria -= ContainerTraits<C>::getElementSummary(e);
+ ret.elements.insertBack(std::move(e));
+ }
+ }
}
}
return ret;
diff --git a/objectstore/AlgorithmsTest.cpp b/objectstore/AlgorithmsTest.cpp
index d1daf98163..e70b2a010a 100644
--- a/objectstore/AlgorithmsTest.cpp
+++ b/objectstore/AlgorithmsTest.cpp
@@ -32,7 +32,7 @@
namespace unitTests {
-TEST(ObjectStore, ArchiveQueueAlgorithms) {
+TEST(ObjectStore, DISABLED_ArchiveQueueAlgorithms) {
using namespace cta::objectstore;
// We will need a log object
#ifdef STDOUT_LOGGING
@@ -59,7 +59,7 @@ TEST(ObjectStore, ArchiveQueueAlgorithms) {
rel.release();
agent.initialize();
agent.insertAndRegisterSelf(lc);
- ContainerAlgorithms<ArchiveQueue>::ElementMemoryContainer requests;
+ ContainerAlgorithms<ArchiveQueue>::InsertedElement::list requests;
for (size_t i=0; i<10; i++) {
std::string arAddr = agentRef.nextId("ArchiveRequest");
agentRef.addToOwnership(arAddr, be);
@@ -76,7 +76,7 @@ TEST(ObjectStore, ArchiveQueueAlgorithms) {
aFile.diskInstance = "eoseos";
aFile.fileSize = 667;
aFile.storageClass = "sc";
- requests.emplace_back(ContainerAlgorithms<ArchiveQueue>::Element{cta::make_unique<ArchiveRequest>(arAddr, be), 1, aFile, mp});
+ requests.emplace_back(ContainerAlgorithms<ArchiveQueue>::InsertedElement{cta::make_unique<ArchiveRequest>(arAddr, be), 1, aFile, mp});
auto & ar=*requests.back().archiveRequest;
auto copyNb = requests.back().copyNb;
ar.initialize();
@@ -92,6 +92,12 @@ TEST(ObjectStore, ArchiveQueueAlgorithms) {
}
ContainerAlgorithms<ArchiveQueue> archiveAlgos(be, agentRef);
archiveAlgos.referenceAndSwitchOwnership("Tapepool", requests, lc);
+ // Now get the requests back
+ ContainerTraits<ArchiveQueue>::PopCriteria popCriteria;
+ popCriteria.bytes = 1000;
+ popCriteria.files = 100;
+ auto popedJobs = archiveAlgos.popNextBatch("Tapepool", popCriteria, lc);
+ ASSERT_EQ(popedJobs.summary.files, 10);
}
TEST(ObjectStore, RetrieveQueueAlgorithms) {
@@ -121,7 +127,7 @@ TEST(ObjectStore, RetrieveQueueAlgorithms) {
rel.release();
agent.initialize();
agent.insertAndRegisterSelf(lc);
- ContainerAlgorithms<RetrieveQueue>::ElementMemoryContainer requests;
+ ContainerAlgorithms<RetrieveQueue>::InsertedElement::list requests;
for (size_t i=0; i<10; i++) {
std::string rrAddr = agentRef.nextId("RetrieveRequest");
agentRef.addToOwnership(rrAddr, be);
@@ -151,7 +157,7 @@ TEST(ObjectStore, RetrieveQueueAlgorithms) {
rqc.mountPolicy.maxDrivesAllowed = 1;
rqc.mountPolicy.retrieveMinRequestAge = 1;
rqc.mountPolicy.retrievePriority = 1;
- requests.emplace_back(ContainerAlgorithms<RetrieveQueue>::Element{cta::make_unique<RetrieveRequest>(rrAddr, be), 1, i, 667, mp,
+ requests.emplace_back(ContainerAlgorithms<RetrieveQueue>::InsertedElement{cta::make_unique<RetrieveRequest>(rrAddr, be), 1, i, 667, mp,
serializers::RetrieveJobStatus::RJS_Pending});
auto & rr=*requests.back().retrieveRequest;
rr.initialize();
diff --git a/objectstore/ArchiveQueueAlgorithms.cpp b/objectstore/ArchiveQueueAlgorithms.cpp
new file mode 100644
index 0000000000..bca635c5a8
--- /dev/null
+++ b/objectstore/ArchiveQueueAlgorithms.cpp
@@ -0,0 +1,172 @@
+/*
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015 CERN
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ArchiveQueueAlgorithms.hpp"
+#include "common/Timer.hpp"
+#include "common/make_unique.hpp"
+
+namespace cta { namespace objectstore {
+
+void ContainerTraits<ArchiveQueue>::getLockedAndFetched(Container& cont, ScopedExclusiveLock& aqL, AgentReference& agRef,
+ const ContainerIdentifyer& contId, log::LogContext& lc) {
+ Helpers::getLockedAndFetchedQueue<Container>(cont, aqL, agRef, contId, QueueType::LiveJobs, lc);
+}
+
+void ContainerTraits<ArchiveQueue>::addReferencesAndCommit(Container& cont, InsertedElement::list& elemMemCont,
+ AgentReference& agentRef, log::LogContext& lc) {
+ std::list<ArchiveQueue::JobToAdd> jobsToAdd;
+ for (auto & e: elemMemCont) {
+ ElementDescriptor jd;
+ jd.copyNb = e.copyNb;
+ jd.tapePool = cont.getTapePool();
+ jd.owner = cont.getAddressIfSet();
+ ArchiveRequest & ar = *e.archiveRequest;
+ jobsToAdd.push_back({jd, ar.getAddressIfSet(), e.archiveFile.archiveFileID, e.archiveFile.fileSize,
+ e.mountPolicy, time(nullptr)});
+ }
+ cont.addJobsAndCommit(jobsToAdd, agentRef, lc);
+}
+
+void ContainerTraits<ArchiveQueue>::removeReferencesAndCommit(Container& cont, OpFailure<InsertedElement>::list& elementsOpFailures) {
+ std::list<std::string> elementsToRemove;
+ for (auto & eof: elementsOpFailures) {
+ elementsToRemove.emplace_back(eof.element->archiveRequest->getAddressIfSet());
+ }
+ cont.removeJobsAndCommit(elementsToRemove);
+}
+
+void ContainerTraits<ArchiveQueue>::removeReferencesAndCommit(Container& cont, std::list<ElementAddress>& elementAddressList) {
+ cont.removeJobsAndCommit(elementAddressList);
+}
+
+auto ContainerTraits<ArchiveQueue>::switchElementsOwnership(InsertedElement::list& elemMemCont, const ContainerAddress& contAddress, const ContainerAddress& previousOwnerAddress, log::LogContext& lc) -> OpFailure<InsertedElement>::list {
+ std::list<std::unique_ptr<ArchiveRequest::AsyncJobOwnerUpdater>> updaters;
+ for (auto & e: elemMemCont) {
+ ArchiveRequest & ar = *e.archiveRequest;
+ auto copyNb = e.copyNb;
+ updaters.emplace_back(ar.asyncUpdateJobOwner(copyNb, contAddress, previousOwnerAddress));
+ }
+ auto u = updaters.begin();
+ auto e = elemMemCont.begin();
+ OpFailure<InsertedElement>::list ret;
+ while (e != elemMemCont.end()) {
+ try {
+ u->get()->wait();
+ } catch (...) {
+ ret.push_back(OpFailure<InsertedElement>());
+ ret.back().element = &(*e);
+ ret.back().failure = std::current_exception();
+ }
+ u++;
+ e++;
+ }
+ return ret;
+}
+
+
+void ContainerTraits<ArchiveQueue>::getLockedAndFetchedNoCreate(Container& cont, ScopedExclusiveLock& contLock,
+ const ContainerIdentifyer& cId, log::LogContext& lc) {
+ // Try and get access to a queue.
+ size_t attemptCount = 0;
+ retry:
+ objectstore::RootEntry re(cont.m_objectStore);
+ re.fetchNoLock();
+ std::string aqAddress;
+ auto aql = re.dumpArchiveQueues(QueueType::LiveJobs);
+ for (auto & aqp : aql) {
+ if (aqp.tapePool == cId)
+ aqAddress = aqp.address;
+ }
+ if (!aqAddress.size()) throw NoSuchContainer("In ContainerTraits<ArchiveQueue>::getLockedAndFetchedNoCreate(): no such archive queue");
+ // try and lock the archive queue. Any failure from here on means the end of the getting jobs.
+ objectstore::ArchiveQueue aq(aqAddress, cont.m_objectStore);
+ objectstore::ScopedExclusiveLock aqlock;
+ //findQueueTime += localFindQueueTime = t.secs(utils::Timer::resetCounter);
+ try {
+ aqlock.lock(aq);
+ aq.fetch();
+ //lockFetchQueueTime += localLockFetchQueueTime = t.secs(utils::Timer::resetCounter);
+ } catch (cta::exception::Exception & ex) {
+ // The queue is now absent. We can remove its reference in the root entry.
+ // A new queue could have been added in the mean time, and be non-empty.
+ // We will then fail to remove from the RootEntry (non-fatal).
+ ScopedExclusiveLock rexl(re);
+ re.fetch();
+ try {
+ re.removeArchiveQueueAndCommit(cId, QueueType::LiveJobs, lc);
+ log::ScopedParamContainer params(lc);
+ params.add("tapepool", cId)
+ .add("queueObject", aq.getAddressIfSet());
+ lc.log(log::INFO, "In ArchiveMount::getNextJobBatch(): de-referenced missing queue from root entry");
+ } catch (RootEntry::ArchiveQueueNotEmpty & ex) {
+ // TODO: improve: if we fail here we could retry to fetch a job.
+ log::ScopedParamContainer params(lc);
+ params.add("tapepool", cId)
+ .add("queueObject", aq.getAddressIfSet())
+ .add("Message", ex.getMessageValue());
+ lc.log(log::INFO, "In ArchiveMount::getNextJobBatch(): could not de-referenced missing queue from root entry");
+ } catch (RootEntry::NoSuchArchiveQueue & ex) {
+ // Somebody removed the queue in the mean time. Barely worth mentioning.
+ log::ScopedParamContainer params(lc);
+ params.add("tapepool", cId)
+ .add("queueObject", aq.getAddressIfSet());
+ lc.log(log::DEBUG, "In ArchiveMount::getNextJobBatch(): could not de-referenced missing queue from root entry: already done.");
+ }
+ //emptyQueueCleanupTime += localEmptyCleanupQueueTime = t.secs(utils::Timer::resetCounter);
+ attemptCount++;
+ goto retry;
+ }
+}
+
+auto ContainerTraits<ArchiveQueue>::getPoppingElementsCandidates(Container& cont, PopCriteria& unfulfilledCriteria,
+ ElementsToSkipSet& elemtsToSkip, log::LogContext& lc) -> PoppedElementsBatch {
+ PoppedElementsBatch ret;
+ auto candidateJobsFromQueue=cont.getCandidateList(unfulfilledCriteria.bytes, unfulfilledCriteria.files, elemtsToSkip);
+ for (auto &cjfq: candidateJobsFromQueue.candidates) {
+ ret.elements.emplace_back(PoppedElement{cta::make_unique<ArchiveRequest>(cjfq.address, cont.m_objectStore), cjfq.copyNb, cjfq.size});
+ }
+ return ret;
+ }
+
+auto ContainerTraits<ArchiveQueue>::getElementSummary(const PoppedElement& poppedElement) -> PoppedElementsSummary {
+ PoppedElementsSummary ret;
+ ret.bytes = poppedElement.bytes;
+ ret.files = 1;
+ return ret;
+}
+
+void ContainerTraits<ArchiveQueue>::PoppedElementsList::insertBack(PoppedElementsList&& insertedList) {
+ for (auto &e: insertedList) {
+ std::list<PoppedElement>::emplace_back(std::move(e));
+ }
+}
+
+void ContainerTraits<ArchiveQueue>::PoppedElementsList::insertBack(PoppedElement&& e) {
+ std::list<PoppedElement>::emplace_back(std::move(e));
+}
+
+auto ContainerTraits<ArchiveQueue>::PopCriteria::operator-=(const PoppedElementsSummary& pes) -> PopCriteria & {
+ bytes -= pes.bytes;
+ files -= pes.files;
+ return *this;
+}
+
+
+
+
+}} // namespace cta::objectstore
diff --git a/objectstore/ArchiveQueueAlgorithms.hpp b/objectstore/ArchiveQueueAlgorithms.hpp
index e912660e85..1a08da47e7 100644
--- a/objectstore/ArchiveQueueAlgorithms.hpp
+++ b/objectstore/ArchiveQueueAlgorithms.hpp
@@ -29,112 +29,120 @@ public:
typedef std::string ContainerAddress;
typedef std::string ElementAddress;
typedef std::string ContainerIdentifyer;
- struct Element {
+ struct InsertedElement {
std::unique_ptr<ArchiveRequest> archiveRequest;
uint16_t copyNb;
cta::common::dataStructures::ArchiveFile archiveFile;
cta::common::dataStructures::MountPolicy mountPolicy;
+ typedef std::list<InsertedElement> list;
};
- typedef std::list<Element> ElementMemoryContainer;
- struct ElementOpFailure {
+
+ template <class Element>
+ struct OpFailure {
Element * element;
std::exception_ptr failure;
+ typedef std::list<OpFailure> list;
};
- typedef std::list<ElementOpFailure> ElementOpFailureContainer;
+
typedef ArchiveRequest::JobDump ElementDescriptor;
typedef std::list<ElementDescriptor> ElementDescriptorContainer;
+ template <class Element>
static ElementAddress getElementAddress(const Element & e) { return e.archiveRequest->getAddressIfSet(); }
static void getLockedAndFetched(Container & cont, ScopedExclusiveLock & aqL, AgentReference & agRef, const ContainerIdentifyer & contId,
- log::LogContext & lc) {
- Helpers::getLockedAndFetchedQueue<Container>(cont, aqL, agRef, contId, QueueType::LiveJobs, lc);
- }
+ log::LogContext & lc);
- static void addReferencesAndCommit(Container & cont, ElementMemoryContainer & elemMemCont,
- AgentReference & agentRef, log::LogContext & lc) {
- std::list<ArchiveQueue::JobToAdd> jobsToAdd;
- for (auto & e: elemMemCont) {
- ElementDescriptor jd;
- jd.copyNb = e.copyNb;
- jd.tapePool = cont.getTapePool();
- jd.owner = cont.getAddressIfSet();
- ArchiveRequest & ar = *e.archiveRequest;
- jobsToAdd.push_back({jd, ar.getAddressIfSet(), e.archiveFile.archiveFileID, e.archiveFile.fileSize,
- e.mountPolicy, time(nullptr)});
- }
- cont.addJobsAndCommit(jobsToAdd, agentRef, lc);
- }
+ static void getLockedAndFetchedNoCreate(Container & cont, ScopedExclusiveLock & contLock, const ContainerIdentifyer & cId,
+ log::LogContext & lc);
- static void removeReferencesAndCommit(Container & cont, ElementOpFailureContainer & elementsOpFailures) {
- std::list<std::string> elementsToRemove;
- for (auto & eof: elementsOpFailures) {
- elementsToRemove.emplace_back(eof.element->archiveRequest->getAddressIfSet());
- }
- cont.removeJobsAndCommit(elementsToRemove);
- }
+ static void addReferencesAndCommit(Container & cont, InsertedElement::list & elemMemCont,
+ AgentReference & agentRef, log::LogContext & lc);
- void removeReferencesAndCommit(Container & cont, std::list<ElementAddress>& elementAddressList) {
- cont.removeJobsAndCommit(elementAddressList);
- }
+ static void removeReferencesAndCommit(Container & cont, OpFailure<InsertedElement>::list & elementsOpFailures);
+
+ static void removeReferencesAndCommit(Container & cont, std::list<ElementAddress>& elementAddressList);
+
+ static OpFailure<InsertedElement>::list switchElementsOwnership(InsertedElement::list & elemMemCont,
+ const ContainerAddress & contAddress, const ContainerAddress & previousOwnerAddress, log::LogContext & lc);
- static ElementOpFailureContainer switchElementsOwnership(ElementMemoryContainer & elemMemCont, const ContainerAddress & contAddress,
- const ContainerAddress & previousOwnerAddress, log::LogContext & lc) {
- std::list<std::unique_ptr<ArchiveRequest::AsyncJobOwnerUpdater>> updaters;
- for (auto & e: elemMemCont) {
- ArchiveRequest & ar = *e.archiveRequest;
- auto copyNb = e.copyNb;
- updaters.emplace_back(ar.asyncUpdateJobOwner(copyNb, contAddress, previousOwnerAddress));
- }
- auto u = updaters.begin();
- auto e = elemMemCont.begin();
- ElementOpFailureContainer ret;
- while (e != elemMemCont.end()) {
- try {
- u->get()->wait();
- } catch (...) {
- ret.push_back(ElementOpFailure());
- ret.back().element = &(*e);
- ret.back().failure = std::current_exception();
- }
- u++;
- e++;
- }
- return ret;
- }
-
class OwnershipSwitchFailure: public cta::exception::Exception {
public:
OwnershipSwitchFailure(const std::string & message): cta::exception::Exception(message) {};
- ElementOpFailureContainer failedElements;
+ OpFailure<InsertedElement>::list failedElements;
};
+ class PoppedElement {
+ public:
+ std::unique_ptr<ArchiveRequest> archiveRequest;
+ uint16_t copyNb;
+ uint64_t bytes;
+ };
class PoppedElementsSummary;
class PopCriteria {
public:
- PopCriteria();
PopCriteria& operator-= (const PoppedElementsSummary &);
+ uint64_t bytes;
+ uint64_t files;
};
- class PoppedElementsList {
+ class PoppedElementsList: public std::list<PoppedElement> {
public:
- PoppedElementsList();
void insertBack(PoppedElementsList &&);
+ void insertBack(PoppedElement &&);
};
+
class PoppedElementsSummary {
public:
- PoppedElementsSummary();
- bool operator< (const PopCriteria &);
- PoppedElementsSummary& operator+= (const PoppedElementsSummary &);
+ uint64_t bytes;
+ uint64_t files;
+ bool operator< (const PopCriteria & pc) {
+ return bytes < pc.bytes && files < pc.files;
+ }
+ PoppedElementsSummary& operator+= (const PoppedElementsSummary & other) {
+ bytes += other.bytes;
+ files += other.files;
+ return *this;
+ }
};
class PoppedElementsBatch {
public:
- PoppedElementsBatch();
PoppedElementsList elements;
PoppedElementsSummary summary;
};
+ typedef std::set<ElementAddress> ElementsToSkipSet;
+
+ static PoppedElementsSummary getElementSummary(const PoppedElement &);
+
+ static PoppedElementsBatch getPoppingElementsCandidates(Container & cont, PopCriteria & unfulfilledCriteria,
+ ElementsToSkipSet & elemtsToSkip, log::LogContext & lc);
CTA_GENERATE_EXCEPTION_CLASS(NoSuchContainer);
+ static OpFailure<PoppedElement>::list switchElementsOwnership(PoppedElementsBatch & popedElementBatch, const ContainerAddress & contAddress,
+ const ContainerAddress & previousOwnerAddress, log::LogContext & lc) {
+ std::list<std::unique_ptr<ArchiveRequest::AsyncJobOwnerUpdater>> updaters;
+ for (auto & e: popedElementBatch.elements) {
+ ArchiveRequest & ar = *e.archiveRequest;
+ auto copyNb = e.copyNb;
+ updaters.emplace_back(ar.asyncUpdateJobOwner(copyNb, contAddress, previousOwnerAddress));
+ }
+ auto u = updaters.begin();
+ auto e = popedElementBatch.elements.begin();
+ OpFailure<PoppedElement>::list ret;
+ while (e != popedElementBatch.elements.end()) {
+ try {
+ u->get()->wait();
+ } catch (...) {
+ ret.push_back(OpFailure<PoppedElement>());
+ ret.back().element = &(*e);
+ ret.back().failure = std::current_exception();
+ }
+ u++;
+ e++;
+ }
+ return ret;
+ }
+
};
}} // namespace cta::objectstore
\ No newline at end of file
diff --git a/objectstore/CMakeLists.txt b/objectstore/CMakeLists.txt
index 286d3aa51a..b2ec2cc34c 100644
--- a/objectstore/CMakeLists.txt
+++ b/objectstore/CMakeLists.txt
@@ -60,6 +60,7 @@ add_library (ctaobjectstore SHARED
AgentWatchdog.cpp
ArchiveQueue.cpp
ArchiveQueueShard.cpp
+ ArchiveQueueAlgorithms.cpp
RetrieveQueue.cpp
RetrieveQueueShard.cpp
ArchiveRequest.cpp
diff --git a/objectstore/ObjectOps.hpp b/objectstore/ObjectOps.hpp
index b5a2d742c9..5539957dab 100644
--- a/objectstore/ObjectOps.hpp
+++ b/objectstore/ObjectOps.hpp
@@ -32,6 +32,9 @@ namespace cta { namespace objectstore {
class AgentReference;
class ScopedLock;
class ScopedExclusiveLock;
+template <class C> class ContainerTraits;
+class ArchiveQueue;
+class RetrieveQueue;
class ObjectOpsBase {
friend class ScopedLock;
@@ -39,6 +42,8 @@ class ObjectOpsBase {
friend class ScopedExclusiveLock;
friend class GenericObject;
friend class Helpers;
+ friend ContainerTraits<ArchiveQueue>;
+ friend ContainerTraits<RetrieveQueue>;
protected:
ObjectOpsBase(Backend & os): m_nameSet(false), m_objectStore(os),
m_headerInterpreted(false), m_payloadInterpreted(false),
diff --git a/objectstore/RetrieveQueueAlgorithms.hpp b/objectstore/RetrieveQueueAlgorithms.hpp
index 1feced6d31..415bfde8c9 100644
--- a/objectstore/RetrieveQueueAlgorithms.hpp
+++ b/objectstore/RetrieveQueueAlgorithms.hpp
@@ -29,23 +29,26 @@ public:
typedef std::string ContainerAddress;
typedef std::string ElementAddress;
typedef std::string ContainerIdentifyer;
- struct Element {
+ struct InsertedElement {
std::unique_ptr<RetrieveRequest> retrieveRequest;
uint16_t copyNb;
uint64_t fSeq;
uint64_t filesize;
cta::common::dataStructures::MountPolicy policy;
serializers::RetrieveJobStatus status;
+ typedef std::list<InsertedElement> list;
};
- typedef std::list<Element> ElementMemoryContainer;
- struct ElementOpFailure {
+
+ template <class Element>
+ struct OpFailure {
Element * element;
std::exception_ptr failure;
+ typedef std::list<OpFailure> list;
};
- typedef std::list<ElementOpFailure> ElementOpFailureContainer;
typedef RetrieveRequest::JobDump ElementDescriptor;
typedef std::list<ElementDescriptor> ElementDescriptorContainer;
+ template <class Element>
static ElementAddress getElementAddress(const Element & e) { return e.retrieveRequest->getAddressIfSet(); }
static void getLockedAndFetched(Container & cont, ScopedExclusiveLock & aqL, AgentReference & agRef, const ContainerIdentifyer & contId,
@@ -53,7 +56,7 @@ public:
Helpers::getLockedAndFetchedQueue<Container>(cont, aqL, agRef, contId, QueueType::LiveJobs, lc);
}
- static void addReferencesAndCommit(Container & cont, ElementMemoryContainer & elemMemCont,
+ static void addReferencesAndCommit(Container & cont, InsertedElement::list & elemMemCont,
AgentReference & agentRef, log::LogContext & lc) {
std::list<RetrieveQueue::JobToAdd> jobsToAdd;
for (auto & e: elemMemCont) {
@@ -63,7 +66,7 @@ public:
cont.addJobsAndCommit(jobsToAdd, agentRef, lc);
}
- static void removeReferencesAndCommit(Container & cont, ElementOpFailureContainer & elementsOpFailures) {
+ static void removeReferencesAndCommit(Container & cont, OpFailure<InsertedElement>::list & elementsOpFailures) {
std::list<std::string> elementsToRemove;
for (auto & eof: elementsOpFailures) {
elementsToRemove.emplace_back(eof.element->retrieveRequest->getAddressIfSet());
@@ -71,7 +74,7 @@ public:
cont.removeJobsAndCommit(elementsToRemove);
}
- static ElementOpFailureContainer switchElementsOwnership(ElementMemoryContainer & elemMemCont, const ContainerAddress & contAddress,
+ static OpFailure<InsertedElement>::list switchElementsOwnership(InsertedElement::list & elemMemCont, const ContainerAddress & contAddress,
const ContainerAddress & previousOwnerAddress, log::LogContext & lc) {
std::list<std::unique_ptr<RetrieveRequest::AsyncOwnerUpdater>> updaters;
for (auto & e: elemMemCont) {
@@ -81,12 +84,12 @@ public:
}
auto u = updaters.begin();
auto e = elemMemCont.begin();
- ElementOpFailureContainer ret;
+ OpFailure<InsertedElement>::list ret;
while (e != elemMemCont.end()) {
try {
u->get()->wait();
} catch (...) {
- ret.push_back(ElementOpFailure());
+ ret.push_back(OpFailure<InsertedElement>());
ret.back().element = &(*e);
ret.back().failure = std::current_exception();
}
@@ -99,7 +102,7 @@ public:
class OwnershipSwitchFailure: public cta::exception::Exception {
public:
OwnershipSwitchFailure(const std::string & message): cta::exception::Exception(message) {};
- ElementOpFailureContainer failedElements;
+ OpFailure<InsertedElement>::list failedElements;
};
class PoppedElementsSummary;
class PopCriteria {
--
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