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Tag Archives: GATHER_FIXED_OBJECTS_STATS
11gr2访问V$LOCK视图出现性能问题
在Oracle 11.2.0.3 For Linux X64环境中,碰到这个问题。 检查数据库是否存在锁信息,在查询V$LOCK视图时发现很长时间没有响应,甚至一度认为数据库HANG住: SQL> SELECT * FROM v$lock WHERE TYPE != ‘MR’; ADDR KADDR SID TY ID1 ID2 LMODE REQUEST CTIME BLOCK —————- —————- —- — ——– —- —– ——- —– —– 0000000C5A6AA770 0000000C5A6AA7C8 3405 TO 5124 … Continue reading