2013-01-11 32 views
1

我已經使用Java成功將一些列插入到cassandra中。但是,當我嘗試列出cassandra客戶端中的所有列時,它說列的數量是有限的,並且限制爲100.我需要的遠不止這些。也許有人知道,如何改變這個限制?Cassandra默認列數限制爲100

這是我從Cassandra的客戶端得到:

[[email protected]] list user;   
Using default limit of 100 
Using default column limit of 100 
------------------- 
RowKey: 313030 
=> (column=45454531, value=56616c756531, timestamp=1357880630549) 
=> (column=4545453130, value=56616c75653130, timestamp=1357880630580) 
=> (column=454545313030, value=56616c7565313030, timestamp=1357880630682) 
=> (column=45454531303030, value=56616c756531303030, timestamp=1357880631306) 
=> (column=454545313031, value=56616c7565313031, timestamp=1357880630682) 
=> (column=454545313032, value=56616c7565313032, timestamp=1357880630683) 
=> (column=454545313033, value=56616c7565313033, timestamp=1357880630684) 
=> (column=454545313034, value=56616c7565313034, timestamp=1357880630684) 
=> (column=454545313035, value=56616c7565313035, timestamp=1357880630685) 
=> (column=454545313036, value=56616c7565313036, timestamp=1357880630686) 
=> (column=454545313037, value=56616c7565313037, timestamp=1357880630686) 
=> (column=454545313038, value=56616c7565313038, timestamp=1357880630687) 
=> (column=454545313039, value=56616c7565313039, timestamp=1357880630688) 
=> (column=4545453131, value=56616c75653131, timestamp=1357880630581) 
=> (column=454545313130, value=56616c7565313130, timestamp=1357880630689) 
=> (column=454545313131, value=56616c7565313131, timestamp=1357880630689) 
=> (column=454545313132, value=56616c7565313132, timestamp=1357880630690) 
=> (column=454545313133, value=56616c7565313133, timestamp=1357880630691) 
=> (column=454545313134, value=56616c7565313134, timestamp=1357880630691) 
=> (column=454545313135, value=56616c7565313135, timestamp=1357880630692) 
=> (column=454545313136, value=56616c7565313136, timestamp=1357880630693) 
=> (column=454545313137, value=56616c7565313137, timestamp=1357880630694) 
=> (column=454545313138, value=56616c7565313138, timestamp=1357880630694) 
=> (column=454545313139, value=56616c7565313139, timestamp=1357880630695) 
=> (column=4545453132, value=56616c75653132, timestamp=1357880630583) 
=> (column=454545313230, value=56616c7565313230, timestamp=1357880630696) 
=> (column=454545313231, value=56616c7565313231, timestamp=1357880630697) 
=> (column=454545313232, value=56616c7565313232, timestamp=1357880630698) 
=> (column=454545313233, value=56616c7565313233, timestamp=1357880630698) 
=> (column=454545313234, value=56616c7565313234, timestamp=1357880630699) 
=> (column=454545313235, value=56616c7565313235, timestamp=1357880630701) 
=> (column=454545313236, value=56616c7565313236, timestamp=1357880630702) 
=> (column=454545313237, value=56616c7565313237, timestamp=1357880630703) 
=> (column=454545313238, value=56616c7565313238, timestamp=1357880630705) 
=> (column=454545313239, value=56616c7565313239, timestamp=1357880630706) 
=> (column=4545453133, value=56616c75653133, timestamp=1357880630584) 
=> (column=454545313330, value=56616c7565313330, timestamp=1357880630707) 
=> (column=454545313331, value=56616c7565313331, timestamp=1357880630708) 
=> (column=454545313332, value=56616c7565313332, timestamp=1357880630709) 
=> (column=454545313333, value=56616c7565313333, timestamp=1357880630711) 
=> (column=454545313334, value=56616c7565313334, timestamp=1357880630712) 
=> (column=454545313335, value=56616c7565313335, timestamp=1357880630713) 
=> (column=454545313336, value=56616c7565313336, timestamp=1357880630714) 
=> (column=454545313337, value=56616c7565313337, timestamp=1357880630715) 
=> (column=454545313338, value=56616c7565313338, timestamp=1357880630716) 
=> (column=454545313339, value=56616c7565313339, timestamp=1357880630717) 
=> (column=4545453134, value=56616c75653134, timestamp=1357880630586) 
=> (column=454545313430, value=56616c7565313430, timestamp=1357880630718) 
=> (column=454545313431, value=56616c7565313431, timestamp=1357880630719) 
=> (column=454545313432, value=56616c7565313432, timestamp=1357880630720) 
=> (column=454545313433, value=56616c7565313433, timestamp=1357880630721) 
=> (column=454545313434, value=56616c7565313434, timestamp=1357880630722) 
=> (column=454545313435, value=56616c7565313435, timestamp=1357880630722) 
=> (column=454545313436, value=56616c7565313436, timestamp=1357880630723) 
=> (column=454545313437, value=56616c7565313437, timestamp=1357880630724) 
=> (column=454545313438, value=56616c7565313438, timestamp=1357880630725) 
=> (column=454545313439, value=56616c7565313439, timestamp=1357880630725) 
=> (column=4545453135, value=56616c75653135, timestamp=1357880630587) 
=> (column=454545313530, value=56616c7565313530, timestamp=1357880630726) 
=> (column=454545313531, value=56616c7565313531, timestamp=1357880630727) 
=> (column=454545313532, value=56616c7565313532, timestamp=1357880630728) 
=> (column=454545313533, value=56616c7565313533, timestamp=1357880630729) 
=> (column=454545313534, value=56616c7565313534, timestamp=1357880630730) 
=> (column=454545313535, value=56616c7565313535, timestamp=1357880630731) 
=> (column=454545313536, value=56616c7565313536, timestamp=1357880630731) 
=> (column=454545313537, value=56616c7565313537, timestamp=1357880630732) 
=> (column=454545313538, value=56616c7565313538, timestamp=1357880630733) 
=> (column=454545313539, value=56616c7565313539, timestamp=1357880630734) 
=> (column=4545453136, value=56616c75653136, timestamp=1357880630588) 
=> (column=454545313630, value=56616c7565313630, timestamp=1357880630735) 
=> (column=454545313631, value=56616c7565313631, timestamp=1357880630736) 
=> (column=454545313632, value=56616c7565313632, timestamp=1357880630736) 
=> (column=454545313633, value=56616c7565313633, timestamp=1357880630737) 
=> (column=454545313634, value=56616c7565313634, timestamp=1357880630738) 
=> (column=454545313635, value=56616c7565313635, timestamp=1357880630739) 
=> (column=454545313636, value=56616c7565313636, timestamp=1357880630740) 
=> (column=454545313637, value=56616c7565313637, timestamp=1357880630740) 
=> (column=454545313638, value=56616c7565313638, timestamp=1357880630741) 
=> (column=454545313639, value=56616c7565313639, timestamp=1357880630742) 
=> (column=4545453137, value=56616c75653137, timestamp=1357880630590) 
=> (column=454545313730, value=56616c7565313730, timestamp=1357880630743) 
=> (column=454545313731, value=56616c7565313731, timestamp=1357880630744) 
=> (column=454545313732, value=56616c7565313732, timestamp=1357880630744) 
=> (column=454545313733, value=56616c7565313733, timestamp=1357880630745) 
=> (column=454545313734, value=56616c7565313734, timestamp=1357880630746) 
=> (column=454545313735, value=56616c7565313735, timestamp=1357880630747) 
=> (column=454545313736, value=56616c7565313736, timestamp=1357880630748) 
=> (column=454545313737, value=56616c7565313737, timestamp=1357880630748) 
=> (column=454545313738, value=56616c7565313738, timestamp=1357880630749) 
=> (column=454545313739, value=56616c7565313739, timestamp=1357880630750) 
=> (column=4545453138, value=56616c75653138, timestamp=1357880630591) 
=> (column=454545313830, value=56616c7565313830, timestamp=1357880630751) 
=> (column=454545313831, value=56616c7565313831, timestamp=1357880630752) 
=> (column=454545313832, value=56616c7565313832, timestamp=1357880630752) 
=> (column=454545313833, value=56616c7565313833, timestamp=1357880630753) 
=> (column=454545313834, value=56616c7565313834, timestamp=1357880630754) 
=> (column=454545313835, value=56616c7565313835, timestamp=1357880630755) 
=> (column=454545313836, value=56616c7565313836, timestamp=1357880630756) 
=> (column=454545313837, value=56616c7565313837, timestamp=1357880630757) 
=> (column=454545313838, value=56616c7565313838, timestamp=1357880630758) 

回答

6

list命令的格式是

list <ColumnFamilyName> limit X columns Y; 

其中

  • 限制:行數返回。默認值爲100.

  • columns:每行返回的列數。默認值爲100

所以乾脆放棄:

list user limit 150 columns 200; 
+0

非常感謝您! – PAcan