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feat(db): Implement importer and listener for permanode #631
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YingHan-Chen
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howjmay
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May 20, 2020
The listener subscribes newly confirmed transactions from IRI and adds inserting tasks into the task queue of thread pool. The importer reads confirmed transactions from historical transaction files dumped from IRI and adds inserting tasks into the task queue of thread pool. Each worker in the thread pool establishes a session connected to ScyllaDB cluster and takes inserting tasks.
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YingHan-Chen
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howjmay
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May 21, 2020
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| static status_t init_importer_data(db_importer_thread_t* thread_data, db_permanode_pool_t* pool, char* file_list) { | ||
| status_t ret = SC_OK; | ||
| pthread_mutex_init(&thread_data->thread_mutex, NULL); |
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Do we need error checking here?
| status_t ret = SC_OK; | ||
| pthread_mutex_init(&thread_data->thread_mutex, NULL); | ||
| thread_data->pool = pool; | ||
| thread_data->file_path = strdup(file_list); |
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| status_t ret = SC_OK; | ||
| db_importer_thread_t* thread_data = (db_importer_thread_t*)data; | ||
| pthread_mutex_lock(&thread_data->thread_mutex); |
| ta_log_error("Failed to open file %s\n", file_name_buffer); | ||
| goto exit; | ||
| } | ||
| ta_log_info("%s %s\n", "starting to import file : ", file_name_buffer); |
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You will get an extra space after the colon
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| exit: | ||
| if (ret == SC_OK) { | ||
| ta_log_info("%s %s\n", "Successfully import file : ", thread_data->file_path); |
| worker_threads = malloc(thread_num * sizeof(pthread_t)); | ||
| worker_data = malloc(thread_num * sizeof(db_worker_thread_t)); | ||
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| db_permanode_thpool_init(&pool); |
| db_permanode_thpool_init_worker(worker_data + i, &pool, db_host); | ||
| pthread_create(&worker_threads[i], NULL, db_permanode_worker_handler, (void*)&worker_data[i]); | ||
| } | ||
| init_importer_data(&importer_data, &pool, file_path); |
| init_importer_data(&importer_data, &pool, file_path); | ||
| pthread_create(&importer_thread, NULL, (void*)importer_handler, (void*)&importer_data); | ||
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| pthread_join(importer_thread, NULL); |
| * | ||
| * @param[in] data pointer to db_permanode_pool_t | ||
| * | ||
| * @return NULL |
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There is no returning NULL here
| #include "scylladb_permanode.h" | ||
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| #include "scylladb_permanode_thpool.h" | ||
| /** |
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add a new line between line 15 and 16
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The listener subscribes newly confirmed transactions from IRI and adds inserting tasks into the task queue of thread pool.
The importer reads confirmed transactions from historical transaction files dumped from IRI and adds inserting tasks into the task queue of thread pool.
Each worker in the thread pool establishes a session connected to ScyllaDB cluster and takes inserting tasks.