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Mark searcher as accessed in acquireSearcher (#41335) 

This fixes an issue where every N seconds a slow search request is triggered
since the searcher access time is not set unless the shard is idle. This change
moves to a more pro-active approach setting the searcher as accessed all the time.
This commit is contained in:
Simon Willnauer 2019-04-18 19:14:23 +02:00
parent 6b4cf8f0bd
commit 11dc9fe249
2 changed files with 8 additions and 3 deletions
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3
server/src/main/java/org/elasticsearch/index/shard/IndexShard.java
View File

@ -1215,6 +1215,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
private Engine.Searcher acquireSearcher(String source, Engine.SearcherScope scope) {
readAllowed();
markSearcherAccessed();
final Engine engine = getEngine();
final Engine.Searcher searcher = engine.acquireSearcher(source, scope);
assert ElasticsearchDirectoryReader.unwrap(searcher.getDirectoryReader())
@ -2990,9 +2991,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
* <code>true</code> if the listener was registered to wait for a refresh.
*/
public final void awaitShardSearchActive(Consumer<Boolean> listener) {
if (isSearchIdle()) {
markSearcherAccessed(); // move the shard into non-search idle
}
final Translog.Location location = pendingRefreshLocation.get();
if (location != null) {
addRefreshListener(location, (b) -> {

6
server/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java
View File

@ -3240,6 +3240,12 @@ public class IndexShardTests extends IndexShardTestCase {
// now loop until we are fast enough... shouldn't take long
primary.awaitShardSearchActive(aBoolean -> {});
} while (primary.isSearchIdle());
assertBusy(() -> assertTrue(primary.isSearchIdle()));
do {
// now loop until we are fast enough... shouldn't take long
primary.acquireSearcher("test").close();
} while (primary.isSearchIdle());
closeShards(primary);
}