From 6e7c33d1fa6992467a8eeb94113c30add79cb105 Mon Sep 17 00:00:00 2001
From: mrzhao <760047616@qq.com>
Date: Mon, 20 Jan 2020 10:40:25 +0800
Subject: [PATCH] statement cache eviction invalidation base on time

---
 .../main/java/org/apache/kylin/rest/service/QueryService.java    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/server-base/src/main/java/org/apache/kylin/rest/service/QueryService.java b/server-base/src/main/java/org/apache/kylin/rest/service/QueryService.java
index 0ce83793500..652cbfc9052 100644
--- a/server-base/src/main/java/org/apache/kylin/rest/service/QueryService.java
+++ b/server-base/src/main/java/org/apache/kylin/rest/service/QueryService.java
@@ -180,6 +180,7 @@ private GenericKeyedObjectPool<PreparedContextKey, PreparedContext> createPrepar
         config.setMaxTotal(kylinConfig.getQueryMaxCacheStatementNum());
         config.setBlockWhenExhausted(false);
         config.setMinEvictableIdleTimeMillis(10 * 60 * 1000L); // cached statement will be evict if idle for 10 minutes
+        config.setTimeBetweenEvictionRunsMillis(60 * 1000L); 
         GenericKeyedObjectPool<PreparedContextKey, PreparedContext> pool = new GenericKeyedObjectPool<>(factory,
                 config);
         return pool;