Question

我有一个要复制到cassandra表中的csv文件。这是模式：

CREATE TABLE keyspace.mytable (
    A int,
    B text,
    C text,
    uuid text,
    D text,
    E boolean,
    F text,
    G text,
    PRIMARY KEY (A, B, C, uuid)
) WITH CLUSTERING ORDER BY (B ASC, C ASC, uuid ASC)
    AND bloom_filter_fp_chance = 0.01
    AND caching = '{"keys":"ALL", "rows_per_partition":"NONE"}'
    AND comment = ''
    AND compaction = {'unchecked_tombstone_compaction': 'true', 'tombstone_compaction_interval': '1200', 'class': 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy'}
    AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}
    AND dclocal_read_repair_chance = 0.0
    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 = 0.1
    AND speculative_retry = '99.0PERCENTILE';

当我尝试使用此复制命令时遇到此问题：

COPY keyspace.mytable FROM 'data.csv' ;

<ErrorMessage code=2000 [Syntax error in CQL query] message="line 1:244 no viable alternative at input ',' (...769,'2015-01-22','XYZ, QRT Campaign Yay','9e1bda3c-f547-4d8f-af5d-4c0649697ca8','true',[ABC],...)">
Aborting import at record #202. Previously inserted records are still present, and some records after that may be present as well.

Answer 1

所以这行有你的线索...

[Syntax error in CQL query] message="line 1:244 no viable alternative at input ','
(...769,'2015-01-22','XYZ, QRT Campaign Yay','9e1bda3c-f547-4d8f-af5d-4c0649697ca8',
'true',[ABC],...)">
Aborting import at record #202.

看来,'2015-01-22','XYZ, QRT Campaign Yay',所在的行缺少单引号。这表明COPY很难解析，因此我认为您文件中的行在QRT Campaign Yay'字段中有一个额外的单引号。

您可以尝试的一件事是设置一个不同的QUOTE标识符；但这实际上取决于文件的外观。快速解决方案是编辑该行，然后删除或转义该单引号。

Cassandra复制问题

1 个答案: