public void run() {
try {
if (isStopping()) {
return;
}
final int lastJournalFileId = journal.getLastAppendLocation().getDataFileId();
final Set<Integer> candidates = journal.getFileMap().keySet();
LOG.trace("Full gc candidate set:" + candidates);
if (candidates.size() > 1) {
// prune current write
for (Iterator<Integer> iterator = candidates.iterator(); iterator.hasNext(); ) {
if (iterator.next() >= lastJournalFileId) {
iterator.remove();
}
}
List<PListImpl> plists = null;
synchronized (indexLock) {
synchronized (this) {
plists = new ArrayList<PListImpl>(persistentLists.values());
}
}
for (PListImpl list : plists) {
list.claimFileLocations(candidates);
if (isStopping()) {
return;
}
LOG.trace(
"Remaining gc candidate set after refs from: " + list.getName() + ":" + candidates);
}
LOG.trace("GC Candidate set:" + candidates);
this.journal.removeDataFiles(candidates);
}
} catch (IOException e) {
LOG.error("Exception on periodic cleanup: " + e, e);
}
}
