Set stats_dump_period_sec to 600 by default

Summary: Having stats in our LOG more often will help a lot with perf debugging.

Test Plan: none

Reviewers: sdong, MarkCallaghan

Reviewed By: MarkCallaghan

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D38781

include/rocksdb/options.h

@@ -948,7 +948,7 @@ struct DBOptions {
   bool skip_log_error_on_recovery;
 
   // if not zero, dump rocksdb.stats to LOG every stats_dump_period_sec
-  // Default: 3600 (1 hour)
+  // Default: 600 (10 min)
   unsigned int stats_dump_period_sec;
 
   // If set true, will hint the underlying file system that the file

util/options.cc

@@ -249,7 +249,7 @@ DBOptions::DBOptions()
       allow_mmap_writes(false),
       is_fd_close_on_exec(true),
       skip_log_error_on_recovery(false),
-      stats_dump_period_sec(3600),
+      stats_dump_period_sec(600),
       advise_random_on_open(true),
       db_write_buffer_size(0),
       access_hint_on_compaction_start(NORMAL),