#IdGenerator

ORA-02300: invalid value for OIDGENERATORS

文档解释ORA-02300:invalidvalueforOIDGENERATORSCause:AnumberwasnotspecifiedforthevalueofOIDGENERATORS.Action:SpecifyanumberforOIDGENERATORS.ORA-02300:invalidvaluefor...

ORA-02301: maximum number of OIDGENERATORS is 255

文档解释ORA-02301:maximumnumberofOIDGENERATORSis255Cause:Anumbergreaterthan255wasspecifiedforthevalueofOIDGENERATORS.Action:MakesurethenumberspecifiedforOIDGENERATO...

百度开源的分布式唯一ID生成器UidGenerator,解决了时钟回拨问题

UidGenerator是百度开源的Java语言实现,基于Snowflake算法的唯一ID生成器。而且,它非常适合虚拟环境,比如:Docker。另外,它通过消费未来时间克服了雪花算法的并发限制。UidGenerator提前生成ID并缓存在RingBuffer中。压测结果显示,单个实例的QPS能超过6000,000。依赖...

IdGenerator 唯一Id生成器

 publicclassIdGenerator{   privatefinalstaticlongbeginTs=1483200000000L;   privatelonglastTs=0L;   privatelong...
代码星球 ·2020-08-07