From 37baba0f1844e0447e16fc2237caad1193941f4d Mon Sep 17 00:00:00 2001
From: Michael McCandless <mail@mikemccandless.com>
Date: Sat, 8 Nov 2014 05:49:20 -0500
Subject: [PATCH] Core: add debug logging to InternalEngine.close

---
 .../index/engine/internal/InternalEngine.java            | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/main/java/org/elasticsearch/index/engine/internal/InternalEngine.java b/src/main/java/org/elasticsearch/index/engine/internal/InternalEngine.java
index 4bf11552c19..8ff4a4254d8 100644
--- a/src/main/java/org/elasticsearch/index/engine/internal/InternalEngine.java
+++ b/src/main/java/org/elasticsearch/index/engine/internal/InternalEngine.java
@@ -1314,12 +1314,14 @@ public class InternalEngine extends AbstractIndexShardComponent implements Engin
     @Override
     public void close() throws ElasticsearchException {
         try (InternalLock _ = writeLock.acquire()) {
+            logger.debug("close acquired writeLock");
             if (!closed) {
                 try {
                     closed = true;
                     indexSettingsService.removeListener(applySettings);
                     this.versionMap.clear();
                     this.failedEngineListeners.clear();
+                    logger.debug("close searcherManager");
                     try {
                         IOUtils.close(searcherManager);
                     } catch (Throwable t) {
@@ -1327,16 +1329,13 @@ public class InternalEngine extends AbstractIndexShardComponent implements Engin
                     }
                     // no need to commit in this case!, we snapshot before we close the shard, so translog and all sync'ed
                     if (indexWriter != null) {
-                        long t0 = System.nanoTime();
+                        logger.debug("rollback indexWriter");
                         try {
                             indexWriter.rollback();
                         } catch (AlreadyClosedException e) {
                             // ignore
                         }
-                        long t1 = System.nanoTime();
-                        if (logger.isDebugEnabled()) {
-                            logger.debug("indexWriter.rollback took {} nanoseconds", t1-t0);
-                        }
+                        logger.debug("rollback indexWriter done");
                     }
                 } catch (Throwable e) {
                     logger.warn("failed to rollback writer on close", e);