{"id":1289,"date":"2015-01-21T15:14:27","date_gmt":"2015-01-21T07:14:27","guid":{"rendered":"http:\/\/www.strongd.net\/?p=1289"},"modified":"2015-04-21T11:47:57","modified_gmt":"2015-04-21T03:47:57","slug":"%e7%94%a8bash%e8%a7%a3%e5%86%b3hadoop%e7%9a%84%e7%a3%81%e7%9b%98%e7%a9%ba%e9%97%b4%e6%a3%80%e6%9f%a5%e6%80%a7%e8%83%bd%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=1289","title":{"rendered":"\u7528bash\u89e3\u51b3hadoop\u7684\u78c1\u76d8\u7a7a\u95f4\u68c0\u67e5\u6027\u80fd\u95ee\u9898"},"content":{"rendered":"

\u9879\u76ee\u4f7f\u7528\u7684hadoop\u5df2\u7ecf\u5b58\u653e\u4e863000W+\u7684\u6587\u4ef6\uff0c<\/p>\n

\u4e3a\u4e86\u8282\u7701\u6210\u672c\uff0c\u5f53\u65f6\u62a2\u5efa\u5e73\u53f0\u65f6\uff0c\u4f7f\u7528\u4e86\u7ec4\u88c5\u670d\u52a1\u5668+\u666e\u901a\u786c\u76d8<\/p>\n

hadoop\u6bcf\u6b21\u505adu\u64cd\u4f5c\u90fd\u975e\u5e38\u8017\u65f6\uff0c\u4e8e\u662f\u628ahadoop\u4ee3\u7801\u6539\u4e86\u4e00\u4e2a<\/p>\n

\u4f7f\u7528\u4e00\u4e2abash\u811a\u672c\u66ff\u4ee3\u539f\u6765du\u64cd\u4f5c\u3002<\/p>\n

bash:<\/p>\n

#\/bin\/sh
\nmydf=$(df $2 | grep -vE ‘^Filesystem|tmpfs|cdrom’ | awk ‘{ print $3 }’)
\necho -e “$mydf\\t$2”<\/p><\/blockquote>\n

java:hadoop\\src\\core\\org\\apache\\hadoop\\fs\\DU.java\uff1a168\u884c\u7684toString()\u53cagetExecString()\u65b9\u6cd5<\/p>\n

public String toString() {
\nreturn
\n“mydu -sk ” + dirPath +”\\n” +
\nused + “\\t” + dirPath;
\n}<\/p>\n

protected String[] getExecString() {
\nreturn new String[] {“mydu”, “-sk”, dirPath};
\n}<\/p><\/blockquote>\n

\u6539\u9020\u540e\uff0c\u539f\u6765\u7684du\u64cd\u4f5c\u5176\u4ed6\u4e0d\u8017\u65f6\u3002<\/p>\n

\u53ea\u662f\u5b58\u5728\u7edf\u8ba1\u4e0d\u51c6\u786e\u7684\u95ee\u9898\uff0c\u4e0d\u8fc7\u5e76\u4e0d\u5f71\u54cdhadoop\u8fd0\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u9879\u76ee\u4f7f\u7528\u7684hadoop\u5df2\u7ecf\u5b58\u653e\u4e863000W+\u7684\u6587\u4ef6\uff0c \u4e3a\u4e86\u8282\u7701\u6210\u672c\uff0c\u5f53\u65f6\u62a2\u5efa\u5e73\u53f0\u65f6\uff0c\u4f7f\u7528\u4e86\u7ec4\u88c5\u670d\u52a1\u5668+\u666e\u901a\u786c\u76d8 hadoop\u6bcf\u6b21\u505adu\u64cd\u4f5c\u90fd\u975e\u5e38\u8017\u65f6\uff0c\u4e8e\u662f\u628ahadoop\u4ee3\u7801\u6539\u4e86\u4e00\u4e2a \u4f7f\u7528\u4e00\u4e2abash\u811a\u672c\u66ff\u4ee3\u539f\u6765du\u64cd\u4f5c\u3002 bash: #\/bin\/sh mydf=$(df $2 | grep -vE ‘^Filesystem|tmpfs|cdrom’ | awk ‘{ print $3 }’) echo -e “$mydf\\t$2” java:hadoop\\src\\core\\org\\apache\\hadoop\\fs\\DU.java\uff1a168\u884c\u7684toString()\u53cagetExecString()\u65b9\u6cd5 public String toString() { return “mydu -sk ” + dirPath +”\\n” + used + “\\t” + dirPath; } protected String[] getExecString() { return new String[] {“mydu”, “-sk”, dirPath}; } \u6539\u9020\u540e\uff0c\u539f\u6765\u7684du\u64cd\u4f5c\u5176\u4ed6\u4e0d\u8017\u65f6\u3002 \u53ea\u662f\u5b58\u5728\u7edf\u8ba1\u4e0d\u51c6\u786e\u7684\u95ee\u9898\uff0c\u4e0d\u8fc7\u5e76\u4e0d\u5f71\u54cdhadoop\u8fd0\u4f5c\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,35,20],"tags":[48],"class_list":["post-1289","post","type-post","status-publish","format-standard","hentry","category-linux","category-35","category-20","tag-hadoop"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/1289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1289"}],"version-history":[{"count":1,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/1289\/revisions"}],"predecessor-version":[{"id":1290,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/1289\/revisions\/1290"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}