scylladb/scylla-enterprise-pro

什么是ScyllaDB？

ScyllaDB是一款高性能的NoSQL数据库系统，完全兼容Apache Cassandra。更多信息请访问http://www.scylladb.com/%E3%80%82 如果您使用ScyllaDB企业版，需遵守https://www.scylladb.com/scylladb-proprietary-software-license-agreement/%E5%92%8C%E2%80%9C%E8%AF%84%E4%BC%B0%E8%AE%B8%E5%8F%AF%E2%80%9D%E3%80%82

FIPS合规性

该镜像使用FIPS 140-2认证的库和处于FIPS模式的Ubuntu Linux内核。

!http://www.scylladb.com/wp-content/uploads/mascot_medium.png

如何使用该镜像

启动Scylla服务器实例

console
$ docker run --name some-scylla -d scylladb/scylla-enterprise-pro

运行nodetool工具

console
$ docker exec -it some-scylla nodetool status
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address     Load       Tokens  Owns (effective)  Host ID                               Rack
UN  172.17.0.2  125.51 KB  256     100.0%            c9155121-786d-44f8-8667-a8b915b95665  rack1

运行cqlsh工具

console
$ docker exec -it some-scylla cqlsh
Connected to Test Cluster at 172.17.0.2:9042.
[cqlsh 5.0.1 | Cassandra 2.1.8 | CQL spec 3.2.1 | Native protocol v3]
Use HELP for help.
cqlsh>

搭建集群

console
$ docker run --name some-scylla2 -d scylladb/scylla-enterprise-pro --seeds="$(docker inspect --format='{{ .NetworkSettings.IPAddress }}' some-scylla)"

查看Scylla日志

console
$ docker logs some-scylla | tail
INFO  2016-08-04 06:57:40,836 [shard 5] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,836 [shard 3] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,836 [shard 1] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,836 [shard 2] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,836 [shard 4] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,836 [shard 7] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,837 [shard 6] database - Setting compaction strategy of system_traces.events to SizeTieredCompactionStrategy
INFO  2016-08-04 06:57:40,839 [shard 0] database - Schema version changed to fea14d93-9c5a-34f5-9d0e-2e49dcfa747e
INFO  2016-08-04 06:57:40,839 [shard 0] storage_service - Starting listening for CQL clients on 172.17.0.2:9042...
INFO  2016-08-04 06:57:40,840 [shard 0] storage_service - Thrift server listening on 172.17.0.2:9160 ...

配置数据卷存储

您可以使用Docker卷提升Scylla性能。在主机创建数据目录：

console
$ sudo mkdir -p /var/lib/scylla/data /var/lib/scylla/commitlog

挂载卷并禁用开发者模式（生产环境推荐）：

console
$ docker run --name some-scylla --volume /var/lib/scylla:/var/lib/scylla -d scylladb/scylla-enterprise-pro --developer-mode=0

配置资源限制

Scylla默认使用所有CPU和内存。可通过--smp（CPU数量）、--memory（内存限制）、--cpuset（指定CPU）调整。超配环境建议启用--overprovisioned优化。

重启Scylla

使用supervisord重启：

console
docker exec -it some-scylla supervisorctl restart scylla

命令行选项

--seeds SEEDS：配置种子节点（默认自身IP）

--listen-address ADDR：监听客户端连接的IP

--broadcast-address ADDR：集群内广播的IP

--broadcast-rpc-address ADDR：客户端连接的广播IP

--smp COUNT：限制CPU数量

--memory AMOUNT：限制内存（支持M/G单位）

--overprovisioned ENABLE：超配环境优化（0/1）

--cpuset CPUSET：指定运行的CPU（如0-2,4）

--developer-mode ENABLE：开发者模式（默认启用，生产建议禁用）

--experimental ENABLE：实验模式（默认禁用）

用户反馈

问题反馈

bug报告请用https://github.com/scylladb/scylla/issues%EF%BC%8C%E6%8F%90%E4%BA%A4%E5%89%8D%E9%98%85%E8%AF%BBhttps://github.com/scylladb/scylla/wiki/How-to-report-a-Scylla-problem%E3%80%82%E4%B8%80%E8%88%AC%E5%B8%AE%E5%8A%A9%E5%8F%82%E8%80%83http://www.scylladb.com/doc/%EF%BC%8C%E9%97%AE%E9%A2%98%E8%AF%84%E8%AE%BA%E7%94%A8http://www.scylladb.com/community/%E3%80%82

贡献

参考http://www.scylladb.com/kb/contributing/%E6%8F%90%E4%BA%A4%E4%BB%A3%E7%A0%81%E3%80%82