[GitHub] [hbase] nyl3532016 commented on a change in pull request #2473: HBASE-25115 HFilePrettyPrinter can't seek to the row which is the first row of a hfile

[GitBox <gi...@apache.org>]

nyl3532016 commented on a change in pull request #2473:
URL: https://github.com/apache/hbase/pull/2473#discussion_r497395411



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File path: hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFilePrettyPrinter.java
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@@ -323,15 +323,20 @@ public int processFile(Path file, boolean checkRootDir) throws IOException {
       HFileScanner scanner = reader.getScanner(false, false, false);
       fileStats = new KeyValueStatsCollector();
       boolean shouldScanKeysValues = false;
+      boolean needSeekToBegin = true;
       if (this.isSeekToRow) {
         // seek to the first kv on this row
-        shouldScanKeysValues =
-          (scanner.seekTo(PrivateCellUtil.createFirstOnRow(this.row)) != -1);
-      } else {
+        if (scanner.seekTo(PrivateCellUtil.createFirstOnRow(this.row)) != -1) {
+          needSeekToBegin = false;
+          shouldScanKeysValues = true;
+        }
+      }
+      if (needSeekToBegin) {

Review comment:
       Yes, but only when the row is the first row in hfile, `scanner.seekTo(PrivateCellUtil.createFirstOnRow(this.row))` return -1 




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