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我想用Nutch的抓取新的URL列表未抓取網址,但也有一些取消取網址:如何刪除/刪除Nutch的數據庫(CrawlDB)
bin/nutch readdb -stats
WebTable statistics start
Statistics for WebTable:
retry 0: 3403
retry 1: 25
retry 2: 2
status 4 (status_redir_temp): 5
status 5 (status_redir_perm): 26
retry 3: 1
status 2 (status_fetched): 704
jobs: {db_stats-job_local_0001={jobName=db_stats, jobID=job_local_0001, counters={Map-Reduce Framework={MAP_OUTPUT_MATERIALIZED_BYTES=227, REDUCE_INPUT_RECORDS=13, SPILLED_RECORDS=26, VIRTUAL_MEMORY_BYTES=0, MAP_INPUT_RECORDS=3431, SPLIT_RAW_BYTES=1059, MAP_OUTPUT_BYTES=181843, REDUCE_SHUFFLE_BYTES=0, PHYSICAL_MEMORY_BYTES=0, REDUCE_INPUT_GROUPS=13, COMBINE_OUTPUT_RECORDS=13, REDUCE_OUTPUT_RECORDS=13, MAP_OUTPUT_RECORDS=13724, COMBINE_INPUT_RECORDS=13724, CPU_MILLISECONDS=0, COMMITTED_HEAP_BYTES=718675968}, File Input Format Counters ={BYTES_READ=0}, File Output Format Counters ={BYTES_WRITTEN=397}, FileSystemCounters={FILE_BYTES_WRITTEN=1034761, FILE_BYTES_READ=912539}}}}
max score: 1.0
status 1 (status_unfetched): 2679
min score: 0.0
status 3 (status_gone): 17
TOTAL urls: 3431
avg score: 0.0043631596
WebTable statistics: done
所以,我怎樣才能從中刪除Nutch數據庫?謝謝