From: songqing <zhangsongqing164@163.com>
Date: Tue, 21 Nov 2023 17:34:59 +0000 (-0800)
Subject: Fix compact_files_example (#12084)
X-Git-Tag: v8.9.1~6
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=d3e015fe06a6ba01e0c93687416deb1d70c57769;p=rocksdb.git

Fix compact_files_example (#12084)

Summary:
The option "write_buffer_size" has changed from 4MB for 64MB by default, and the compact_files_example will not work as expected, as the test data written is only about 50MB and will not trigger compaction.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12084

Reviewed By: cbi42

Differential Revision: D51499959

Pulled By: ajkr

fbshipit-source-id: 4f4b25ebc4b6bb568501adc8e97813edcddceea8
---

diff --git a/examples/compact_files_example.cc b/examples/compact_files_example.cc
index 1ecf8c794..544adf8ae 100644
--- a/examples/compact_files_example.cc
+++ b/examples/compact_files_example.cc
@@ -144,6 +144,8 @@ int main() {
   options.create_if_missing = true;
   // Disable RocksDB background compaction.
   options.compaction_style = ROCKSDB_NAMESPACE::kCompactionStyleNone;
+  // Small write buffer size for generating more sst files in level 0.
+  options.write_buffer_size = 4 << 20;
   // Small slowdown and stop trigger for experimental purpose.
   options.level0_slowdown_writes_trigger = 3;
   options.level0_stop_writes_trigger = 5;