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193 | <h1>Hadoopæ¬å°åº</h1> |
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194 | <div id="minitoc-area"> |
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195 | <ul class="minitoc"> |
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196 | <li> |
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197 | <a href="#%E7%9B%AE%E7%9A%84">ç®ç</a> |
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198 | </li> |
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199 | <li> |
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200 | <a href="#%E7%BB%84%E4%BB%B6">ç»ä»¶</a> |
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201 | </li> |
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202 | <li> |
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203 | <a href="#%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95">䜿çšæ¹æ³</a> |
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204 | </li> |
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205 | <li> |
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206 | <a href="#%E6%94%AF%E6%8C%81%E7%9A%84%E5%B9%B3%E5%8F%B0">æ¯æçå¹³å°</a> |
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207 | </li> |
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208 | <li> |
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209 | <a href="#%E6%9E%84%E5%BB%BAHadoop%E6%9C%AC%E5%9C%B0%E5%BA%93">æ建Hadoopæ¬å°åº</a> |
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210 | <ul class="minitoc"> |
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211 | <li> |
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212 | <a href="#%E6%B3%A8%E6%84%8F">泚æ</a> |
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213 | </li> |
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214 | </ul> |
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215 | </li> |
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216 | <li> |
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217 | <a href="#%E4%BD%BF%E7%94%A8DistributedCache+%E5%8A%A0%E8%BD%BD%E6%9C%AC%E5%9C%B0%E5%BA%93"> 䜿çšDistributedCache å 蜜æ¬å°åº</a> |
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218 | </li> |
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219 | </ul> |
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220 | </div> |
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221 | |
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222 | |
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223 | <a name="N1000D"></a><a name="%E7%9B%AE%E7%9A%84"></a> |
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224 | <h2 class="h3">ç®ç</h2> |
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225 | <div class="section"> |
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226 | <p> |
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227 | éŽäºæ§èœé®é¢ä»¥åæäºJavaç±»åºç猺倱ïŒå¯¹äºæäºç»ä»¶ïŒHadoopæäŸäºèªå·±çæ¬å°å®ç°ã |
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228 | è¿äºç»ä»¶ä¿ååšHadoopçäžäžªç¬ç«çåšæéŸæ¥çåºéãè¿äžªåºåš*nixå¹³å°äžå«<em>libhadoop.so</em>. æ¬æäž»èŠä»ç»æ¬å°åºç䜿çšæ¹æ³ä»¥ååŠäœæ建æ¬å°åºã |
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229 | </p> |
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230 | </div> |
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231 | |
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232 | |
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233 | <a name="N1001A"></a><a name="%E7%BB%84%E4%BB%B6"></a> |
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234 | <h2 class="h3">ç»ä»¶</h2> |
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235 | <div class="section"> |
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236 | <p>Hadoopç°åšå·²ç»æä»¥äž |
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237 | <a href="http://hadoop.apache.org/core/docs/r0.18.2/api/org/apache/hadoop/io/compress/CompressionCodec.html"> |
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238 | compression codecs</a>æ¬å°ç»ä»¶ïŒ</p> |
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239 | <ul> |
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240 | |
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241 | <li> |
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242 | <a href="http://www.zlib.net/">zlib</a> |
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243 | </li> |
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244 | |
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245 | <li> |
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246 | <a href="http://www.gzip.org/">gzip</a> |
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247 | </li> |
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248 | |
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249 | <li> |
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250 | <a href="http://www.oberhumer.com/opensource/lzo/">lzo</a> |
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251 | </li> |
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252 | |
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253 | </ul> |
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254 | <p>åšä»¥äžç»ä»¶äžïŒlzoågzipå猩çŒè§£ç åšå¿
须䜿çšhadoopæ¬å°åºæèœè¿è¡ã |
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255 | </p> |
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256 | </div> |
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257 | |
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258 | |
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259 | <a name="N1003D"></a><a name="%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95"></a> |
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260 | <h2 class="h3">䜿çšæ¹æ³</h2> |
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261 | <div class="section"> |
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262 | <p>hadoopæ¬å°åºççšæ³åŸç®åïŒ</p> |
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263 | <ul> |
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264 | |
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265 | <li> |
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266 | çäžäž |
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267 | <a href="#%E6%94%AF%E6%8C%81%E7%9A%84%E5%B9%B3%E5%8F%B0">æ¯æçå¹³å°</a>. |
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268 | </li> |
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269 | |
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270 | <li> |
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271 | |
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272 | <a href="http://hadoop.apache.org/core/releases.html#Download">äžèœœ</a> é¢æ建ç32äœi386æ¶æçLinuxæ¬å°hadoopåºïŒå¯ä»¥åšhadoopåè¡çç<span class="codefrag">lib/native</span>ç®åœäžæŸå°ïŒæè
èªå·± |
---|
273 | <a href="#%E6%9E%84%E5%BB%BAHadoop%E6%9C%AC%E5%9C%B0%E5%BA%93">æ建</a> è¿äºåºã |
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274 | </li> |
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275 | |
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276 | <li> |
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277 | ç¡®ä¿äœ çå¹³å°å·²ç»å®è£
äº<strong>zlib-1.2</strong>以äžçæ¬æè
<strong>lzo2.0</strong>以äžçæ¬ç蜯件å
æè
䞀è
åå·²å®è£
ïŒæ ¹æ®äœ çéèŠïŒã |
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278 | </li> |
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279 | |
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280 | </ul> |
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281 | <p> |
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282 | <span class="codefrag">bin/hadoop</span> èæ¬éè¿ç³»ç»å±æ§ |
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283 | <em>-Djava.library.path=<path></em>æ¥ç¡®è®€hadoopæ¬å°åºæ¯åŠå
å«åšåºè·¯åŸéã</p> |
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284 | <p>æ£æ¥hadoopæ¥å¿æ件å¯ä»¥æ¥çhadoopåºæ¯åŠæ£åžžïŒæ£åžžæ
åµäžäŒçå°ïŒ</p> |
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285 | <p> |
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286 | |
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287 | <span class="codefrag"> |
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288 | DEBUG util.NativeCodeLoader - Trying to load the custom-built |
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289 | native-hadoop library... |
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290 | </span> |
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291 | <br> |
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292 | |
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293 | <span class="codefrag"> |
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294 | INFO util.NativeCodeLoader - Loaded the native-hadoop library |
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295 | </span> |
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296 | |
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297 | </p> |
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298 | <p>åŠæåºéïŒäŒçå°ïŒ</p> |
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299 | <p> |
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300 | |
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301 | <span class="codefrag"> |
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302 | INFO util.NativeCodeLoader - Unable to load native-hadoop library for |
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303 | your platform... using builtin-java classes where applicable |
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304 | </span> |
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305 | |
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306 | </p> |
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307 | </div> |
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308 | |
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309 | |
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310 | <a name="N10086"></a><a name="%E6%94%AF%E6%8C%81%E7%9A%84%E5%B9%B3%E5%8F%B0"></a> |
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311 | <h2 class="h3">æ¯æçå¹³å°</h2> |
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312 | <div class="section"> |
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313 | <p>Hadoopæ¬å°åºåªæ¯æ*nixå¹³å°ïŒå·²ç»å¹¿æ³äœ¿çšåšGNU/Linuxå¹³å°äžïŒäœæ¯äžæ¯æ |
---|
314 | <a href="http://www.cygwin.com/">Cygwin</a> |
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315 | å <a href="http://www.apple.com/macosx">Mac OS X</a>ã |
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316 | </p> |
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317 | <p>å·²ç»æµè¯è¿çGNU/Linuxåè¡çæ¬ïŒ</p> |
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318 | <ul> |
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319 | |
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320 | <li> |
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321 | |
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322 | <a href="http://www.redhat.com/rhel/">RHEL4</a>/<a href="http://fedora.redhat.com/">Fedora</a> |
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323 | |
---|
324 | </li> |
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325 | |
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326 | <li> |
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327 | <a href="http://www.ubuntu.com/">Ubuntu</a> |
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328 | </li> |
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329 | |
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330 | <li> |
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331 | <a href="http://www.gentoo.org/">Gentoo</a> |
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332 | </li> |
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333 | |
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334 | </ul> |
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335 | <p>åšäžè¿°å¹³å°äžïŒ32/64äœHadoopæ¬å°åºåå«èœå32/64äœçjvmäžèµ·æ£åžžè¿è¡ã |
---|
336 | </p> |
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337 | </div> |
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338 | |
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339 | |
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340 | <a name="N100B6"></a><a name="%E6%9E%84%E5%BB%BAHadoop%E6%9C%AC%E5%9C%B0%E5%BA%93"></a> |
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341 | <h2 class="h3">æ建Hadoopæ¬å°åº</h2> |
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342 | <div class="section"> |
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343 | <p>Hadoopæ¬å°åºäœ¿çš |
---|
344 | <a href="http://en.wikipedia.org/wiki/ANSI_C">ANSI C</a> çŒåïŒäœ¿çšGNU autotoolså·¥å
·éŸ (autoconf, autoheader, automake, autoscan, libtool)æ建ãä¹å°±æ¯è¯Žæ建hadoopåºçå¹³å°éèŠææ åCççŒè¯åšåGNU autotoolså·¥å
·éŸã请åç |
---|
345 | <a href="#%E6%94%AF%E6%8C%81%E7%9A%84%E5%B9%B3%E5%8F%B0">æ¯æçå¹³å°</a>ã</p> |
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346 | <p>äœ çç®æ å¹³å°äžå¯èœäŒéèŠç蜯件å
ïŒ |
---|
347 | </p> |
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348 | <ul> |
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349 | |
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350 | <li> |
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351 | C çŒè¯åš (e.g. <a href="http://gcc.gnu.org/">GNU C Compiler</a>) |
---|
352 | </li> |
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353 | |
---|
354 | <li> |
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355 | GNU Autools å·¥å
·éŸ: |
---|
356 | <a href="http://www.gnu.org/software/autoconf/">autoconf</a>, |
---|
357 | <a href="http://www.gnu.org/software/automake/">automake</a>, |
---|
358 | <a href="http://www.gnu.org/software/libtool/">libtool</a> |
---|
359 | |
---|
360 | </li> |
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361 | |
---|
362 | <li> |
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363 | zlibåŒåå
(stable version >= 1.2.0) |
---|
364 | </li> |
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365 | |
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366 | <li> |
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367 | lzoåŒåå
(stable version >= 2.0) |
---|
368 | </li> |
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369 | |
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370 | </ul> |
---|
371 | <p>åŠæå·²ç»æ»¡è¶³äºäžè¿°å
å³æ¡ä»¶ïŒå¯ä»¥äœ¿çš<span class="codefrag">build.xml</span> |
---|
372 | æ件ïŒå¹¶æå
¶äžç<span class="codefrag">compile.native</span>眮䞺 |
---|
373 | <span class="codefrag">true</span>ïŒè¿æ ·å°±å¯ä»¥çæhadoopæ¬å°åºïŒ</p> |
---|
374 | <p> |
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375 | <span class="codefrag">$ ant -Dcompile.native=true <target></span> |
---|
376 | </p> |
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377 | <p>å 䞺äžæ¯ææçšæ·éœéèŠHadoopæ¬å°åºïŒæ以é»è®€æ
åµäžhadoopäžçæ该åºã |
---|
378 | </p> |
---|
379 | <p>äœ å¯ä»¥åšäžé¢çè·¯åŸæ¥çæ°çæçhadoopæ¬å°åºïŒ</p> |
---|
380 | <p> |
---|
381 | <span class="codefrag">$ build/native/<platform>/lib</span> |
---|
382 | </p> |
---|
383 | <p>å
¶äž<platform>æ¯äžåç³»ç»å±æ§çç»å |
---|
384 | <span class="codefrag">${os.name}-${os.arch}-${sun.arch.data.model}</span>ïŒäŸåŠ |
---|
385 | Linux-i386-32ã</p> |
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386 | <a name="N10109"></a><a name="%E6%B3%A8%E6%84%8F"></a> |
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387 | <h3 class="h4">泚æ</h3> |
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388 | <ul> |
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389 | |
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390 | <li> |
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397 | |
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398 | </ul> |
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399 | </div> |
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400 | <!--DCCOMMENT:diff begin--> |
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401 | |
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402 | <a name="N1011F"></a><a name="%E4%BD%BF%E7%94%A8DistributedCache+%E5%8A%A0%E8%BD%BD%E6%9C%AC%E5%9C%B0%E5%BA%93"></a> |
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403 | <h2 class="h3"> 䜿çšDistributedCache å 蜜æ¬å°åº</h2> |
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404 | <div class="section"> |
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411 | <ol> |
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412 | |
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413 | <li>éŠå
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414 | |
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415 | <span class="codefrag">bin/hadoop fs -copyFromLocal mylib.so.1 /libraries/mylib.so.1</span> |
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416 | |
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417 | </li> |
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418 | |
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419 | <li>å¯åšäœäžæ¶å
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420 | |
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421 | <span class="codefrag"> DistributedCache.createSymlink(conf); </span> |
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422 | <br> |
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423 | |
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424 | <span class="codefrag"> DistributedCache.addCacheFile("hdfs://host:port/libraries/mylib.so.1#mylib.so", conf); |
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425 | </span> |
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426 | |
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427 | </li> |
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428 | |
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429 | <li>map/reduceä»»å¡äžå
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430 | |
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431 | <span class="codefrag"> System.loadLibrary("mylib.so"); </span> |
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432 | |
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433 | </li> |
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434 | |
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435 | </ol> |
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436 | </div> |
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437 | |
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438 | </div> |
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439 | <!--+ |
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440 | |end content |
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441 | +--> |
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442 | <div class="clearboth"> </div> |
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443 | </div> |
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444 | <div id="footer"> |
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445 | <!--+ |
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446 | |start bottomstrip |
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447 | +--> |
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448 | <div class="lastmodified"> |
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449 | <script type="text/javascript"><!-- |
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450 | document.write("Last Published: " + document.lastModified); |
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451 | // --></script> |
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452 | </div> |
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453 | <div class="copyright"> |
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454 | Copyright © |
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455 | 2007 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a> |
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456 | </div> |
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457 | <!--+ |
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458 | |end bottomstrip |
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459 | +--> |
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460 | </div> |
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461 | </body> |
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462 | </html> |
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