Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 149 (from laksa002)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa149.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, meta_canonical AS meta_canonical, ml_categories_json AS ml_categories_json, ml_types_json AS ml_types_json, ml_intent_types_json AS ml_intent_types_json, meta_language AS meta_language, attrs_author AS attrs_author, ifNull(toUnixTimestamp(attrs_publish_time), 0) AS attrs_publish_time, ifNull(toUnixTimestamp(attrs_original_publish_time), 0) AS attrs_original_publish_time, ifNull(attrs_is_republished, 0) AS attrs_is_republished, ifNull(attrs_nr_words, 0) AS attrs_nr_words, ifNull(attrs_boilerpipe_nr_words, 0) AS attrs_boilerpipe_nr_words, ifNull(body_ext_links_number, 0) AS body_ext_links_number, ifNull(body_int_links_number, 0) AS body_int_links_number, ifNull(meta_nofollow, 0) AS meta_nofollow, ifNull(meta_noarchive, 0) AS meta_noarchive, ifNull(props_was_rendered, 0) AS props_was_rendered, ifNull(src_redirect, \'\') AS src_redirect, ifNull(download_time_msec, 0) AS download_time_msec, ifNull(download_ttfb_msec, 0) AS download_ttfb_msec, ifNull(download_size, 0) AS download_size FROM crawler3.page_info_local FINAL PREWHERE int_partition_id = 71 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://developer.aliyun.com/article/1485698\')), getAhrefsUnparsedNoserviceFromURL(\'https://developer.aliyun.com/article/1485698\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/developer.aliyun.com\/article\/1485698","crawl_time":1774985740,"first_indexed_time":1713428194,"http_code":200,"src_unparsed":"com,aliyun!developer,\/article\/1485698 s443","src_root_hash":"892221456919234349","history_drop_reason":null,"meta_title":"PyTorch分布式训练：加速大规模数据集的处理-阿里云开发者社区","meta_descriptions":["【4月更文挑战第18天】PyTorch分布式训练加速大规模数据集处理，通过数据并行和模型并行提升训练效率。`torch.distributed`提供底层IPC与同步，适合定制化需求；`DistributedDataParallel`则简化并行过程。实际应用注意数据划分、通信开销、负载均衡及错误处理。借助PyTorch分布式工具，可高效应对深度学习的计算挑战，未来潜力无限。"],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":null,"attrs_author":null,"attrs_publish_time":1713456940,"attrs_original_publish_time":1713428194,"attrs_is_republished":0,"attrs_nr_words":"534","attrs_boilerpipe_nr_words":"43","body_ext_links_number":35,"body_int_links_number":213,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":2318,"download_ttfb_msec":1701,"download_size":22735}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	2.1 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Property	Value
URL	https://developer.aliyun.com/article/1485698
Last Crawled	2026-03-31 19:35:40 (2 months ago)
First Indexed	2024-04-18 08:16:34 (2 years ago)
HTTP Status Code	200
Content
Meta Title	PyTorch分布式训练：加速大规模数据集的处理-阿里云开发者社区
Meta Description	【4月更文挑战第18天】PyTorch分布式训练加速大规模数据集处理，通过数据并行和模型并行提升训练效率。`torch.distributed`提供底层IPC与同步，适合定制化需求；`DistributedDataParallel`则简化并行过程。实际应用注意数据划分、通信开销、负载均衡及错误处理。借助PyTorch分布式工具，可高效应对深度学习的计算挑战，未来潜力无限。
Meta Canonical	null
Boilerpipe Text	heavy column, fetched on demand
Markdown	heavy column, fetched on demand
Readable Markdown	heavy column, fetched on demand
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	null
Author	null
Publish Time	2024-04-18 16:15:40 (2 years ago)
Original Publish Time	2024-04-18 08:16:34 (2 years ago)
Republished	No
Word Count (Total)	534
Word Count (Content)	43
Links
External Links	35
Internal Links	213
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	2,318
TTFB (ms)	1,701
Download Size (bytes)	22,735
Location
Host ID	149 (laksa149)
Partition ID	71
Root Hash	892221456919234349
Unparsed URL	com,aliyun!developer,/article/1485698 s443

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5. Seen Status Check

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