ZooKeeper's Role
Apache, ZooKeeper, SolrCloud, ka, "CENTRAL, NERVOUS, SYSTEM" hai — YE, CLUSTER, CONFIGURATION, CLUSTER, STATE, aur, LEADER, ELECTION, MANAGE, karta hai.
Agar, ZooKeeper, ensemble, ki, MAJORITY, DOWN, ho, jaaye, TO, SolrCloud, cluster, NAYE, CONFIGURATION, changes, ya, LEADER, elections, NAHI, kar, sakta — EXISTING, queries, aksar, CHALTI, RAHTI, HAIN.
bin/solr zk ls / -z localhost:2181- ZooKeeper = SolrCloud ka central nervous system
- Cluster configuration, state, leader election manage karta hai
- Production mein 3 ya 5 ZooKeeper nodes ka ensemble chalaya jaata hai
Apache, ZooKeeper, SolrCloud, ka, "CENTRAL, NERVOUS, SYSTEM" hai — YE, CLUSTER, CONFIGURATION, (schemas, configs), CLUSTER, STATE, (KAUNSE, nodes, UP/DOWN, HAIN), aur, LEADER, ELECTION, (HAR, shard, ka, "leader" REPLICA, KAUN, hai) MANAGE, karta hai.
Agar, ZooKeeper, ensemble, ki, MAJORITY, DOWN, ho, jaaye, TO, SolrCloud, cluster, NAYE, CONFIGURATION, changes, ya, LEADER, elections, NAHI, kar, sakta — EXISTING, queries, aksar, CHALTI, RAHTI, HAIN, LEKIN, cluster, "READ-ONLY-ISH" state, mein, chala, jaata hai.
bin/solr zk ls / -z localhost:2181