Cassandra 3.11.2 发布，分布式 K/V 存储系统

Cassandra 3.11.2 发布了，Apache Cassandra是一套开源分布式Key-Value存储系统。它最初由Facebook开发，用于储存特别大的数据。Facebook目前在使用此系统。

该版本改进内容包括：

 * Fix ReadCommandTest (CASSANDRA-14234)
 * Remove trailing period from latency reports at keyspace level (CASSANDRA-14233)
 * Backport CASSANDRA-13080: Use new token allocation for non bootstrap case as well (CASSANDRA-14212)
 * Remove dependencies on JVM internal classes from JMXServerUtils (CASSANDRA-14173) 
 * Add DEFAULT, UNSET, MBEAN and MBEANS to `ReservedKeywords` (CASSANDRA-14205)
 * Add Unittest for schema migration fix (CASSANDRA-14140)
 * Print correct snitch info from nodetool describecluster (CASSANDRA-13528)
 * Close socket on error during connect on OutboundTcpConnection (CASSANDRA-9630)
 * Enable CDC unittest (CASSANDRA-14141)
 * Acquire read lock before accessing CompactionStrategyManager fields (CASSANDRA-14139)
 * Split CommitLogStressTest to avoid timeout (CASSANDRA-14143)
 * Avoid invalidating disk boundaries unnecessarily (CASSANDRA-14083)
 * Avoid exposing compaction strategy index externally (CASSANDRA-14082)
 * Prevent continuous schema exchange between 3.0 and 3.11 nodes (CASSANDRA-14109)
 * Fix imbalanced disks when replacing node with same address with JBOD (CASSANDRA-14084)
 * Reload compaction strategies when disk boundaries are invalidated (CASSANDRA-13948)
 * Remove OpenJDK log warning (CASSANDRA-13916)
 * Prevent compaction strategies from looping indefinitely (CASSANDRA-14079)
 * Cache disk boundaries (CASSANDRA-13215)
 * Add asm jar to build.xml for maven builds (CASSANDRA-11193)
 * Round buffer size to powers of 2 for the chunk cache (CASSANDRA-13897)
 * Update jackson JSON jars (CASSANDRA-13949)
 * Avoid locks when checking LCS fanout and if we should defrag (CASSANDRA-13930)
 * Correctly count range tombstones in traces and tombstone thresholds (CASSANDRA-8527)

下载地址： http://cassandra.apache.org/download/