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print commit time in msec to IW's infoStream 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1589423 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2014-04-23 14:16:05 +00:00
parent 7847d3f899
commit 3c72219c98
1 changed files with 9 additions and 0 deletions
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9
lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
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@ -280,6 +280,10 @@ public class IndexWriter implements Closeable, TwoPhaseCommit{
// to allow users to query an IndexWriter settings. // to allow users to query an IndexWriter settings.
private final LiveIndexWriterConfig config; private final LiveIndexWriterConfig config;
/** System.nanoTime() when commit started; used to write
* an infoStream message about how long commit took. */
private long startCommitTime;
DirectoryReader getReader() throws IOException { DirectoryReader getReader() throws IOException {
return getReader(true); return getReader(true);
} }
@ -2743,6 +2747,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit{
} }
private void prepareCommitInternal() throws IOException { private void prepareCommitInternal() throws IOException {
startCommitTime = System.nanoTime();
synchronized(commitLock) { synchronized(commitLock) {
ensureOpen(false); ensureOpen(false);
if (infoStream.isEnabled("IW")) { if (infoStream.isEnabled("IW")) {
@ -2968,6 +2973,10 @@ public class IndexWriter implements Closeable, TwoPhaseCommit{
notifyAll(); notifyAll();
} }
if (infoStream.isEnabled("IW")) {
infoStream.message("IW", String.format(Locale.ROOT, "commit: took %.1f msec", (System.nanoTime()-startCommitTime)/1000000.0));
}
} else { } else {
if (infoStream.isEnabled("IW")) { if (infoStream.isEnabled("IW")) {
infoStream.message("IW", "commit: pendingCommit == null; skip"); infoStream.message("IW", "commit: pendingCommit == null; skip");