2020-01-04T14:09:55.315+0800I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=2048M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000...
[initandlisten] wiredtiger_open config: create,cache_size=3466M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),cache_cursors=false,compatibility=(release="3.0",require_max="3.0"),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_...
1|mongodb | 2022-01-31T14:44:47.416+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=3212M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),cache_cursors=false,compatibility=(release=”3.0″,require_max=”...
WT 提供 LZO/ZIP/snappy 这几个压缩算法,也支持自定义压缩算法,只要按照上面的对象接口实现即可。要让 WT 支持压缩算法,需要在 WT 启动时通过 wiredtiger_open 加载压缩算法模块,例子如下: wiredtiger_open(db_path, NULL, “extensions=[/usr/local/lib/libwiredtiger_zlib.so]”,&connection); 然后在 WT 引擎...
Set the wiredtiger_open Config String MongoDB configures WiredTiger so that (by default) the snappy compressor is used, and the WT transaction log files are placed under the “journal/” subdirectory. Some wt subcommands don’t need to read the transaction logs, so you might survive without ...
wiredtiger_open: __conn_single, 1682: WiredTiger database is already being managed by another process: Device or resource busy mongod.lock文件: 这是MongoDB启动后在磁盘上创建的一个与守护进程mongod相关的锁文件,这个文件会记录mongod在运行过程中的一些状态信息,当正常关闭mongod时,会清除mongod.lock文...
WiredTiger数据库技术介绍 WiredTiger数据库引擎技术介绍 技术创新，变革未来 摘要 -无锁化规避线程间竞争-页面布局(memorylayout)-缓存和文件压缩 整体架构 内存管理–页面管理BTree 内存管理–叶子结点 初始化写入–数据没有落入磁盘 p*((WT_CURSOR_BTREE*)cursor).btree.root.page.u.intl.index.index[0].page p...
int wiredtiger_open (const char *home, WT_EVENT_HANDLER *errhandler, const char *config, WT_CONNECTION **connectionp) Open a connection to a database. More... const char * wiredtiger_strerror (int err) Return information about an error as a string; wiredtiger_strerror is a superset of th...
(WT_CONFIG_ENTRY_WT_SESSION_checkpoint 19 & force=1) | | | | | |-> __wt_txn_checkpoint -> xxx 删除表 __session_drop | |-> (conn->schema_lock & table_lock) v __wt_schema_drop | |-> (session->txn->flags & WT_TXN_RUNNING) -> __wt_open_session(schema) 删表ddl不能跟...
| 2019-01-28T17:54:23.046+0000 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=63951M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time...