[incubator-pinot] 01/01: use unique output file names in csv mode

[apucher]

This is an automated email from the ASF dual-hosted git repository.

apucher pushed a commit to branch data-gen-csv-multifile-fix-20210104
in repository https://gitbox.apache.org/repos/asf/incubator-pinot.git

commit 4a1be6b8f07b51e038e30f3fc1ba32ca7ea7d819
Author: Alexander Pucher <a...@alexpucher.com>
AuthorDate: Mon Jan 4 17:32:05 2021 -0800

    use unique output file names in csv mode
---
 .../main/java/org/apache/pinot/tools/data/generator/DataGenerator.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/pinot-tools/src/main/java/org/apache/pinot/tools/data/generator/DataGenerator.java
 
b/pinot-tools/src/main/java/org/apache/pinot/tools/data/generator/DataGenerator.java
index 2cdc1cc..bd7a489 100644
--- 
a/pinot-tools/src/main/java/org/apache/pinot/tools/data/generator/DataGenerator.java
+++ 
b/pinot-tools/src/main/java/org/apache/pinot/tools/data/generator/DataGenerator.java
@@ -110,7 +110,7 @@ public class DataGenerator {
       throws IOException {
     final int numPerFiles = (int) (totalDocs / numFiles);
     for (int i = 0; i < numFiles; i++) {
-      try (FileWriter writer = new FileWriter(outDir + "/output.csv")) {
+      try (FileWriter writer = new 
FileWriter(String.format("%s/output_%d.csv", outDir, i))) {
         writer.append(StringUtils.join(genSpec.getColumns(), 
",")).append('\n');
         for (int j = 0; j < numPerFiles; j++) {
           Object[] values = new Object[genSpec.getColumns().size()];


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