/// Processing engine to consume logs one topic & and multiple partitions.
/// Step 1: Collection system information
///  * Lookup API versions,
///  * Request metadata
///  * Fetch group coordinator
/// Step 2: Create loop for Group keep-alives
/// Step 3: Create loop for continuous log fetch
Processing engine to consume logs one topic & and multiple partitions.
Step 1: Collection system information
Lookup API versions,
Request metadata
Fetch group coordinator
Step 2: Create loop for Group keep-alives
Step 3: Create loop for continuous log fetch
Processing engine to consume logs one topic & and multiple partitions . Step 1 : Collection system information Lookup API versions Request metadata Fetch group coordinator Step 2 : Create loop for Group keep - alives Step 3 : Create loop for continuous log fetch
async fn process_consume_log_from_topic_all(
    kf_ctrl_addr: String,
    cfg: ConsumeLogConfig,
    response_params: ResponseLogParams,
) -> Result<(), CliError> {
    let mut brk_conn = Connection::new(kf_ctrl_addr.clone()).await?;
    let bkr_vers = kf_get_api_versions(&mut brk_conn).await?;
    debug!("consume topic '{}'", cfg.topic);
    // query metadata for topics
    let query_topics = Some(vec![cfg.topic.clone()]);
    let metadata = query_kf_metadata(&mut brk_conn, query_topics, &bkr_vers).await?;
    let mut tp_params = metadata_to_all_topic_partition_params(&metadata)?;
    // generate group-id
    let grp_id = generate_group_id();
    debug!("group id: '{}'", grp_id);
    // query group coordinator
    let grp_coordinator = kf_group_coordinator(&mut brk_conn, &grp_id, &bkr_vers).await?;
    let coordinator_addr = group_coordinator_to_socket_addr(&grp_coordinator)?;
    // create connection to the group coordinator
    let mut gc_conn = Connection::new(coordinator_addr.clone()).await?;
    let gc_vers = kf_get_api_versions(&mut gc_conn).await?;
    // join group coordinator (to get member id)
    let empty_id = "".to_owned();
    let join_group_res =
        kf_join_group(&mut gc_conn, &cfg.topic, &grp_id, &empty_id, &gc_vers).await?;
    let mbr_id = join_group_to_member_id(&join_group_res)?;
    // join group
    let join_group_res =
        kf_join_group(&mut gc_conn, &cfg.topic, &grp_id, &mbr_id, &gc_vers).await?;
    let gen_id = join_group_to_generation_id(&join_group_res)?;
    // sync group
    let sync_group_res =
        kf_sync_group(&mut gc_conn, &cfg.topic, &grp_id, &mbr_id, gen_id, &gc_vers).await?;
    sync_group_response_validate(&sync_group_res)?;
    // offsets fetch
    let offsets_fetch_res =
        kf_offsets_fetch(&mut gc_conn, &grp_id, &cfg.topic, &tp_params, &gc_vers).await?;
    let _ = update_topic_partition_params_offsets(&mut tp_params, &offsets_fetch_res);
    // Generate futures for group heartbeat and fetch logs
    group_and_fetch_log_futures(
        gc_conn,
        gc_vers,
        grp_id,
        mbr_id,
        gen_id,
        cfg.max_bytes,
        cfg.from_beginning,
        tp_params,
        response_params,
    )
    .await?;
    Ok(())
}
async fn process_consume_log_from_topic_all ( kf_ctrl_addr : String , cfg : ConsumeLogConfig , response_params : ResponseLogParams , ) -> Result < ( ) , CliError > { let mut brk_conn = Connection :: new ( kf_ctrl_addr . clone ( ) ) . await ? ; let bkr_vers = kf_get_api_versions ( & mut brk_conn ) . await ? ; debug ! ( " " cfg topic ) ; // query metadata for topics let query_topics = Some ( vec ! [ cfg topic clone ( ) ] ) ; let metadata = query_kf_metadata ( & mut brk_conn , query_topics , & bkr_vers ) . await ? ; let mut tp_params = metadata_to_all_topic_partition_params ( & metadata ) ? ; // generate group-id let grp_id = generate_group_id ( ) ; debug ! ( " " grp_id ) ; // query group coordinator let grp_coordinator = kf_group_coordinator ( & mut brk_conn , & grp_id , & bkr_vers ) . await ? ; let coordinator_addr = group_coordinator_to_socket_addr ( & grp_coordinator ) ? ; // create connection to the group coordinator let mut gc_conn = Connection :: new ( coordinator_addr . clone ( ) ) . await ? ; let gc_vers = kf_get_api_versions ( & mut gc_conn ) . await ? ; // join group coordinator (to get member id) let empty_id = " " . to_owned ( ) ; let join_group_res = kf_join_group ( & mut gc_conn , & cfg . topic , & grp_id , & empty_id , & gc_vers ) . await ? ; let mbr_id = join_group_to_member_id ( & join_group_res ) ? ; // join group let join_group_res = kf_join_group ( & mut gc_conn , & cfg . topic , & grp_id , & mbr_id , & gc_vers ) . await ? ; let gen_id = join_group_to_generation_id ( & join_group_res ) ? ; // sync group let sync_group_res = kf_sync_group ( & mut gc_conn , & cfg . topic , & grp_id , & mbr_id , gen_id , & gc_vers ) . await ? ; sync_group_response_validate ( & sync_group_res ) ? ; // offsets fetch let offsets_fetch_res = kf_offsets_fetch ( & mut gc_conn , & grp_id , & cfg . topic , & tp_params , & gc_vers ) . await ? ; let _ = update_topic_partition_params_offsets ( & mut tp_params , & offsets_fetch_res ) ; // Generate futures for group heartbeat and fetch logs group_and_fetch_log_futures ( gc_conn , gc_vers , grp_id , mbr_id , gen_id , cfg . max_bytes , cfg . from_beginning , tp_params , response_params , ) . await ? ; Ok ( ( ) ) }
Processing engine to consume logs one topic & and multiple partitions.
Processing engine to consume logs one topic & and multiple partitions .
kf_ctrl_addr
String
cfg
ConsumeLogConfig
response_params
ResponseLogParams