txhawm rau teeb tsa qib sib xws rau koj qhov kev sib tham tam sim no, siv CONSISTENCY hais kom ua los ntawm cassandra plhaub (CQLSH). Txhawm rau pom koj qib sib xws tam sim no, tsuas yog khiav CONSISTENCY; los ntawm shell: ty@cqlsh> sib xws; theem tam sim no sib xws yog ONE.
Dab tsi yog qib sib xws hauv Cassandra?
Cov qib Cassandra zoo ib yam txhais tau tias yog tus lej tsawg kawg ntawm Cassandra nodes uas yuav tsum lees paub kev nyeem lossis sau ua haujlwm ua ntej kev ua haujlwm tuaj yeem suav tias ua tiav. Cov qib sib txawv tuaj yeem raug xa mus rau qhov sib txawv Edge keyspaces.
theem kev sib xws li cas?
Koj tuaj yeem siv cqlsh hais kom ua, CONSISTENCY, rau set qib sib xws rau cov lus nug hauv cqlsh tam sim no. Rau cov programming cov neeg siv cov ntawv thov, teeb tsa qib sib xws siv tus tsav tsheb tsim nyog. Piv txwv li, hu rau QueryBuilder. insertInto nrog setConsistencyLevel sib cav siv tus tsav Java.
Dab tsi yog qib sib xws?
Qhov Kev Sib Koom Tes (CL) txiav txim siab pes tsawg tus qauv hauv ib pawg yuav tsum lees paub qhov kev nyeem lossis sau ua haujlwm ua ntej nws txiav txim siab ua tiavQee qhov Kev Sib Koom Siab feem ntau siv yog: NYIAJ - Ib qho kev sau yuav tsum tau sau rau tsawg kawg ib daim ntawv luam hauv pawg.
Qhov xwm txheej rov ua dua nyob rau hauv Cassandra?
Nyob hauv Cassandra, Koj tau teeb tsa lub tswv yim replication ntawm the keyspace thaum tsim lub keyspace lossis tom qab los ntawm kev hloov kho qhov keyspace.
Cassandra Tutorial7 Consistency Level in Cassandra NoSql database
