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Signed-off-by: zhenshan.cao <zhenshan.cao@zilliz.com> |
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.. | ||
allocator_test.go | ||
allocator.go | ||
cluster_store.go | ||
cluster_test.go | ||
cluster.go | ||
datanode_helper.go | ||
errors_test.go | ||
errors.go | ||
meta_test.go | ||
meta.go | ||
metrics_info_test.go | ||
metrics_info.go | ||
mock_test.go | ||
move_binlog_path_helper_test.go | ||
move_binlog_path_helper.go | ||
OWNERS | ||
param_table_test.go | ||
param_table.go | ||
policy_test.go | ||
policy.go | ||
README.md | ||
segment_allocation_policy_test.go | ||
segment_allocation_policy.go | ||
segment_info.go | ||
segment_manager_test.go | ||
segment_manager.go | ||
server_test.go | ||
server.go | ||
services.go | ||
util_test.go | ||
util.go |
Data Coordinator
Data cooridnator(datacoord for short) is the component to organize DataNodes and segments allocations.
Dependency
- KV store: a kv store has all the meta info datacoord needs to operate. (ETCD)
- Message stream: a message stream to communicate statistics information with data nodes. (Pulsar)
- Root Coordinator: timestamp, id and meta source.
- Data Node(s): could be an instance or a cluster, actual worker group handles data modification operations.