expected: file:///
闂鎻忚堪錛?br />鍦ㄦ湰鍦拌繍琛宧adoop Map/Reduce紼嬪簭鏃訛紝鍦ㄦ秹鍙婂埌hdfs鏂囦歡鎿嶄綔鐨勬椂鍊欙紝寰寰浼?xì)鍑虹庮C笂闈㈡彁鍒扮殑閿欒錛屼緥濡傦紝涓嬮潰榪欐浠ｇ爜錛?br />
閫氳繃璇曢獙鍙戠幇錛屽湪鍒嗗竷寮廻adoop闆嗙兢涓婅繍琛岃繖孌典唬鐮佹槸涓嶄細(xì)鍑虹幇閿欒鐨勶紝鐒惰屽湪鏈満浼垎甯冨紡鐜涓嬭繍琛岃繖孌典唬鐮佸氨浼?xì)鍑虹幇鍓嶉潰鎻愬埌鐨勯敊璇俊鎭傛湁涓ょ鏂規(guī)硶鏉ヨВ鍐寵繖涓棶棰樸?br />
瑙ｅ喅鏂規(guī)硶1錛?br />灝嗕笂榪頒唬鐮佺◢浣滀慨鏀癸紝鍒╃敤clear_path鏉ヨ幏鍙朏ileSystem錛屾敼涓哄涓嬩唬鐮佺墖孌碉細(xì)
瑙ｅ喅鏂規(guī)2錛?br />鏇翠負(fù)褰誨簳鐨勮В鍐蟲柟娉曢渶瑕佸皢hadoop鐩綍涓殑conf鏂囦歡澶逛腑鐨刪dfs-site.xml涓巆ore-site.xml澶嶅埗鍒頒綘鐨勯」鐩殑鐩綍涔嬩笅錛岃繖鏍峰氨涓嶄細(xì)鍐嶆姤榪欑閿欒銆?/div>
闂鎻忚堪錛?br />鍦ㄦ湰鍦拌繍琛宧adoop Map/Reduce紼嬪簭鏃訛紝鍦ㄦ秹鍙婂埌hdfs鏂囦歡鎿嶄綔鐨勬椂鍊欙紝寰寰浼?xì)鍑虹庮C笂闈㈡彁鍒扮殑閿欒錛屼緥濡傦紝涓嬮潰榪欐浠ｇ爜錛?br />
1 Path clear_path = new Path(args[1]);
2 FileSystem fs = FileSystem.get(conf);
3 fs.delete(clear_path);
2 FileSystem fs = FileSystem.get(conf);
3 fs.delete(clear_path);
閫氳繃璇曢獙鍙戠幇錛屽湪鍒嗗竷寮廻adoop闆嗙兢涓婅繍琛岃繖孌典唬鐮佹槸涓嶄細(xì)鍑虹幇閿欒鐨勶紝鐒惰屽湪鏈満浼垎甯冨紡鐜涓嬭繍琛岃繖孌典唬鐮佸氨浼?xì)鍑虹幇鍓嶉潰鎻愬埌鐨勯敊璇俊鎭傛湁涓ょ鏂規(guī)硶鏉ヨВ鍐寵繖涓棶棰樸?br />
瑙ｅ喅鏂規(guī)硶1錛?br />灝嗕笂榪頒唬鐮佺◢浣滀慨鏀癸紝鍒╃敤clear_path鏉ヨ幏鍙朏ileSystem錛屾敼涓哄涓嬩唬鐮佺墖孌碉細(xì)
Path clear_path = new Path(args[1]);
FileSystem fs = clear_path.getFileSystem(conf);
fs.delete(clear_path);
榪欐牱榪愯璧鋒潵灝變笉浼?xì)鎶ラ敊銆?br />FileSystem fs = clear_path.getFileSystem(conf);
fs.delete(clear_path);
瑙ｅ喅鏂規(guī)2錛?br />鏇翠負(fù)褰誨簳鐨勮В鍐蟲柟娉曢渶瑕佸皢hadoop鐩綍涓殑conf鏂囦歡澶逛腑鐨刪dfs-site.xml涓巆ore-site.xml澶嶅埗鍒頒綘鐨勯」鐩殑鐩綍涔嬩笅錛岃繖鏍峰氨涓嶄細(xì)鍐嶆姤榪欑閿欒銆?/div>
FrankJinhao 2013-07-17 16:10 鍙戣〃璇勮
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