[Vulnerability notice] CVE-2017-13089 and CVE-2017-13090: Wget stack
overflow vulnerability - Security Advisories
On October 26, 2017, GNU Wget announced a
overflow vulnerability in the versions earlier than 1.19.2. When a user clicks ...
PostgreSQL source code analysis Standby query conflicts - User was holding shared
pin for too
: User was holding shared
pin for too long. < 2016-08-09 22:03:39.534 CST >CONTEXT: PL/pgSQL function xxx(integer ...
Python UDF - MaxCompute
: Inherit this class to implement a Python UDAF. BaseUDAF.new_buffer(): Implement this method and return the median ‘
MySQL Engine Features InnoDB Based Physical Replication
InnoDB. It is also responsible for generating local redo logs and copying the logs to the global log
when committing ...
MySQL 8.0 version update - performance optimization
won't be used, which is also a disadvantage. WL#8423: InnoDB: Remove the
pool mutex This can be regarded as a ...
Study notes of JAVA NIO - architecture briefings
follows: • Selector • Channel •
Java UDF - MaxCompute
void close() throws UDFException /** * Create an aggregate
* @return Writable - Aggregate
PouchContainer RingBuffer Log Practices
This article analyzes the reasons for introducing the non-blocking log
and illustrates the practices of the non-blocking ...
When Databases Meet FPGA – Achieving 1 Million TPS with X-DB Heterogeneous Computing
. ## X-Engine Compaction X-Engine's storage structure contains one or multiple memory
areas (memtable), and multilayer ...
PolarDB: Deep Dive on Alibaba Cloud’s Next-Generation Database
instance has made changes to a particular piece of data, because of the
Pool caching mechanism, the data page may not be ...