xinyiZzz commented on code in PR #31220:
URL: https://github.com/apache/doris/pull/31220#discussion_r1497487981
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be/src/olap/olap_server.cpp:
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@@ -287,6 +286,16 @@ void StorageEngine::_cache_clean_callback() {
} else {
_clear_segment_cache = false;
}
+ if (config::disable_storage_page_cache) {
Review Comment:
// Dynamically modify the config to clear the cache, each time the disable
cache will only be cleared once.
这里实际提供了一个手动清cache的方式，通过 http 动态修改 be conf，可以立即清理掉cache并禁用
curl -X POST
http://xxxx:8040/api/update_config?disable_storage_page_cache=true
再动态把
disable_storage_page_cache=false，就可以重新启用cache，是之前看内存问题用户的诉求，clickhouse可以直接通过
SQL 清cache，这里用http接口简单实现了下
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