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-rw-r--r--storage/innobase/include/srv0srv.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/storage/innobase/include/srv0srv.h b/storage/innobase/include/srv0srv.h
index 6e4241965c1..116ae7b6438 100644
--- a/storage/innobase/include/srv0srv.h
+++ b/storage/innobase/include/srv0srv.h
@@ -182,6 +182,7 @@ extern mutex_t* kernel_mutex_temp;/* mutex protecting the server, trx structs,
#define kernel_mutex (*kernel_mutex_temp)
#define SRV_MAX_N_IO_THREADS 100
+#define SRV_CONCURRENCY_THRESHOLD 20
/* Array of English strings describing the current state of an
i/o handler thread */