@Override
public void refresh(String source) throws EngineException {
// we obtain a read lock here, since we don't want a flush to happen while we are refreshing
// since it flushes the index as well (though, in terms of concurrency, we are allowed to do it)
try (ReleasableLock lock = readLock.acquire()) {
ensureOpen();
searcherManager.maybeRefreshBlocking();
} catch (AlreadyClosedException e) {
ensureOpen();
maybeFailEngine("refresh", e);
} catch (EngineClosedException e) {
throw e;
} catch (Throwable t) {
failEngine("refresh failed", t);
throw new RefreshFailedEngineException(shardId, t);
}
// TODO: maybe we should just put a scheduled job in threadPool?
// We check for pruning in each delete request, but we also prune here e.g. in case a delete
// burst comes in and then no more deletes
// for a long time:
maybePruneDeletedTombstones();
versionMapRefreshPending.set(false);
mergeScheduler.refreshConfig();
}
@Override
public List<Segment> segments(boolean verbose) {
try (ReleasableLock lock = readLock.acquire()) {
Segment[] segmentsArr = getSegmentInfo(lastCommittedSegmentInfos, verbose);
// fill in the merges flag
Set<OnGoingMerge> onGoingMerges = mergeScheduler.onGoingMerges();
for (OnGoingMerge onGoingMerge : onGoingMerges) {
for (SegmentCommitInfo segmentInfoPerCommit : onGoingMerge.getMergedSegments()) {
for (Segment segment : segmentsArr) {
if (segment.getName().equals(segmentInfoPerCommit.info.name)) {
segment.mergeId = onGoingMerge.getId();
break;
}
}
}
}
return Arrays.asList(segmentsArr);
}
}
public MergeStats getMergeStats() {
return mergeScheduler.stats();
}
public void onSettingsChanged() {
mergeScheduler.refreshConfig();
// config().isEnableGcDeletes() or config.getGcDeletesInMillis() may have changed:
maybePruneDeletedTombstones();
}
