我正在用apache spark和apache cassandra进行数据分析,并且我正努力用带timeuuid字段重新插入cassandra。使用apache spark创建cassandra插入的timeuuid
我有以下表
CREATE TABLE leech_seed_report.daily_sessions (
id timeuuid PRIMARY KEY,
app int,
count int,
date bigint,
offline boolean,
vendor text,
version text
) WITH bloom_filter_fp_chance = 0.01
AND caching = '{"keys":"ALL", "rows_per_partition":"NONE"}'
AND comment = ''
AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'}
AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}
AND dclocal_read_repair_chance = 0.1
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND memtable_flush_period_in_ms = 0
AND min_index_interval = 128
AND read_repair_chance = 0.0
AND speculative_retry = '99.0PERCENTILE';
CREATE INDEX daily_sessions_app_idx ON leech_seed_report.daily_sessions (app);
CREATE INDEX daily_sessions_date_idx ON leech_seed_report.daily_sessions (date);
CREATE INDEX daily_sessions_offline_idx ON leech_seed_report.daily_sessions (offline);
CREATE INDEX daily_sessions_vendor_idx ON leech_seed_report.daily_sessions (vendor);
CREATE INDEX daily_sessions_version_idx ON leech_seed_report.daily_sessions (version);
,我使用
rows.saveToCassandra("leech_seed_report", "daily_sessions", SomeColumns("id", "date", "app", "vendor", "version", "offline", "count"))
插入行和我行由
([timmuuid_will_be_here], BigInt, Int, String, String, Boolean, Int)
我与周围播放的格式的元组插入到没有timeuuid字段的同一张表中,它一切正常,但我不能为我工作o的生活UT如何为每一行
任何帮助将不胜感激一个timeuuid,即时通讯新的火花,卡桑德拉和Scala,感觉像IM撞我的头撞墙
感谢 马特。
有你尝试使用['UUIDGen'](https://github.com/apache/cassandra/blob/cassandra-2.1/src/java/org/apache/卡桑德拉/ utils的/ UUIDGen.java#1-34)? – zero323
我没有,我只是试过,并得到“java.lang.NoClassDefFoundError:org/apache/cassandra/io/util/DataOutputPlus”,即时通讯只是想找出原因,不好报告回来!欢呼 –
即时通讯假设其缺少依赖或其他东西,我得到它与https://github.com/gilt/gfc-timeuuid –