How to resume crawling after last depth I reached when I restart my crawler?
Hello Everyone
I am making a web application that crawl lots of pages from a specific website,
I started my crawler4j software with unlimited depth and pages but suddenly it stopped because of internet connection.
Now I want to continue crawling that website and not to fetch the urls I visited before considering I have last pages depth.
Note : I want some way that not to check my stored url with the urls I will fetch because I don't want to send very much requests to this site.
**Thanks **☺
java web-crawler crawler4j
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
add a comment |
Hello Everyone
I am making a web application that crawl lots of pages from a specific website,
I started my crawler4j software with unlimited depth and pages but suddenly it stopped because of internet connection.
Now I want to continue crawling that website and not to fetch the urls I visited before considering I have last pages depth.
Note : I want some way that not to check my stored url with the urls I will fetch because I don't want to send very much requests to this site.
**Thanks **☺
java web-crawler crawler4j
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
add a comment |
Hello Everyone
I am making a web application that crawl lots of pages from a specific website,
I started my crawler4j software with unlimited depth and pages but suddenly it stopped because of internet connection.
Now I want to continue crawling that website and not to fetch the urls I visited before considering I have last pages depth.
Note : I want some way that not to check my stored url with the urls I will fetch because I don't want to send very much requests to this site.
**Thanks **☺
java web-crawler crawler4j
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
Hello Everyone
I am making a web application that crawl lots of pages from a specific website,
I started my crawler4j software with unlimited depth and pages but suddenly it stopped because of internet connection.
Now I want to continue crawling that website and not to fetch the urls I visited before considering I have last pages depth.
Note : I want some way that not to check my stored url with the urls I will fetch because I don't want to send very much requests to this site.
**Thanks **☺
java web-crawler crawler4j
java web-crawler crawler4j
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
asked Nov 20 '18 at 19:34
Ahmed Sakr
264
264
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can use "resumeable" crawling with crawler4j by enabling this feature
crawlConfig.setResumableCrawling(true);
in the given configuration. See the documentation of crawler4j here.
answered Dec 7 '18 at 13:29
rzo
3,12921652
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use "resumeable" crawling with crawler4j by enabling this feature
crawlConfig.setResumableCrawling(true);
in the given configuration. See the documentation of crawler4j here.
answered Dec 7 '18 at 13:29
rzo
3,12921652
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
add a comment |
You can use "resumeable" crawling with crawler4j by enabling this feature
crawlConfig.setResumableCrawling(true);
in the given configuration. See the documentation of crawler4j here.
answered Dec 7 '18 at 13:29
rzo
3,12921652
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
add a comment |
You can use "resumeable" crawling with crawler4j by enabling this feature
crawlConfig.setResumableCrawling(true);
in the given configuration. See the documentation of crawler4j here.
answered Dec 7 '18 at 13:29
rzo
3,12921652
You can use "resumeable" crawling with crawler4j by enabling this feature
crawlConfig.setResumableCrawling(true);
in the given configuration. See the documentation of crawler4j here.
answered Dec 7 '18 at 13:29
rzo
3,12921652
answered Dec 7 '18 at 13:29
rzo
3,12921652
answered Dec 7 '18 at 13:29
rzo
3,12921652
answered Dec 7 '18 at 13:29
rzo
3,12921652
3,12921652
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
add a comment |
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
Great , but how this method work?,what logic it uses?
– Ahmed Sakr
Dec 12 '18 at 0:09
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
If it is enabled, it uses the internal berkley database to store intermediate crawl data (frontier, docid server) in the location you specified by setting the crawl storage folder.
– rzo
Dec 12 '18 at 8:00
add a comment |
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