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193 | <h1>åœä»€æå</h1> |
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194 | <div id="minitoc-area"> |
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195 | <ul class="minitoc"> |
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203 | </li> |
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207 | <li> |
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208 | <a href="#archive"> archive </a> |
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210 | <li> |
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211 | <a href="#distcp"> distcp </a> |
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212 | </li> |
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213 | <li> |
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214 | <a href="#fs"> fs </a> |
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215 | </li> |
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216 | <li> |
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217 | <a href="#fsck"> fsck </a> |
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218 | </li> |
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219 | <li> |
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220 | <a href="#jar"> jar </a> |
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221 | </li> |
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222 | <li> |
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223 | <a href="#job"> job </a> |
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224 | </li> |
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225 | <li> |
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226 | <a href="#pipes"> pipes </a> |
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227 | </li> |
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228 | <li> |
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229 | <a href="#version"> version </a> |
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230 | </li> |
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231 | <li> |
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232 | <a href="#CLASSNAME"> CLASSNAME </a> |
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233 | </li> |
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234 | </ul> |
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235 | </li> |
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236 | <li> |
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239 | <li> |
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240 | <a href="#balancer"> balancer </a> |
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241 | </li> |
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242 | <li> |
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243 | <a href="#daemonlog"> daemonlog </a> |
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244 | </li> |
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245 | <li> |
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246 | <a href="#datanode"> datanode</a> |
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247 | </li> |
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248 | <li> |
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249 | <a href="#dfsadmin"> dfsadmin </a> |
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250 | </li> |
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251 | <li> |
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252 | <a href="#jobtracker"> jobtracker </a> |
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253 | </li> |
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254 | <li> |
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255 | <a href="#namenode"> namenode </a> |
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256 | </li> |
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257 | <li> |
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258 | <a href="#secondarynamenode"> secondarynamenode </a> |
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259 | </li> |
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260 | <li> |
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261 | <a href="#tasktracker"> tasktracker </a> |
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262 | </li> |
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263 | </ul> |
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264 | </li> |
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265 | </ul> |
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266 | </div> |
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267 | |
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268 | <a name="N1000D"></a><a name="%E6%A6%82%E8%BF%B0"></a> |
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269 | <h2 class="h3">æŠè¿°</h2> |
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270 | <div class="section"> |
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271 | <p> |
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272 | ææçhadoopåœä»€åç±bin/hadoopèæ¬åŒåãäžæå®åæ°è¿è¡hadoopèæ¬äŒæå°ææåœä»€çæè¿°ã |
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273 | </p> |
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274 | <p> |
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275 | |
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276 | <span class="codefrag">çšæ³ïŒhadoop [--config confdir] [COMMAND] [GENERIC_OPTIONS] [COMMAND_OPTIONS]</span> |
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277 | |
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278 | </p> |
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279 | <p> |
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280 | Hadoopæäžäžªé项解ææ¡æ¶çšäºè§£æäžè¬çé项åè¿è¡ç±»ã |
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281 | </p> |
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282 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
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283 | |
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284 | <tr> |
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285 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿° </th> |
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286 | </tr> |
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287 | |
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288 | |
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289 | <tr> |
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290 | |
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291 | <td colspan="1" rowspan="1"><span class="codefrag">--config confdir</span></td> |
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292 | <td colspan="1" rowspan="1">èŠç猺çé
眮ç®åœã猺çæ¯${HADOOP_HOME}/confã</td> |
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293 | |
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294 | </tr> |
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295 | |
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296 | <tr> |
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297 | |
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298 | <td colspan="1" rowspan="1"><span class="codefrag">GENERIC_OPTIONS</span></td> |
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299 | <td colspan="1" rowspan="1">å€äžªåœä»€éœæ¯æçéçšé项ã</td> |
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300 | |
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301 | </tr> |
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302 | |
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303 | <tr> |
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304 | |
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305 | <td colspan="1" rowspan="1"><span class="codefrag">COMMAND</span> |
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306 | <br> |
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307 | <span class="codefrag">åœä»€é项S</span></td> |
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308 | <td colspan="1" rowspan="1">åç§åæ ·çåœä»€åå®ä»¬çé项äŒåšäžé¢æå°ãè¿äºåœä»€è¢«å䞺 |
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309 | <a href="commands_manual.html#%E7%94%A8%E6%88%B7%E5%91%BD%E4%BB%A4">çšæ·åœä»€</a> |
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310 | <a href="commands_manual.html#%E7%AE%A1%E7%90%86%E5%91%BD%E4%BB%A4">管çåœä»€</a>䞀ç»ã</td> |
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311 | |
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312 | </tr> |
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313 | |
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314 | </table> |
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315 | <a name="N10061"></a><a name="%E5%B8%B8%E8%A7%84%E9%80%89%E9%A1%B9"></a> |
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316 | <h3 class="h4">åžžè§é项</h3> |
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317 | <p> |
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318 | äžé¢çé项被 |
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319 | <a href="commands_manual.html#dfsadmin">dfsadmin</a>, |
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320 | <a href="commands_manual.html#fs">fs</a>, <a href="commands_manual.html#fsck">fsck</a>å |
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321 | <a href="commands_manual.html#job">job</a>æ¯æã |
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322 | åºçšçšåºèŠå®ç° |
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323 | <a href="http://hadoop.apache.org/core/docs/r0.18.2/api/org/apache/hadoop/util/Tool.html">Tool</a>æ¥æ¯æ |
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324 | <a href="http://hadoop.apache.org/core/docs/r0.18.2/api/org/apache/hadoop/util/GenericOptionsParser.html"> |
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325 | åžžè§é项</a>ã |
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326 | </p> |
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327 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
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328 | |
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329 | <tr> |
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330 | <th colspan="1" rowspan="1"> GENERIC_OPTION </th><th colspan="1" rowspan="1"> æè¿° </th> |
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331 | </tr> |
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332 | |
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333 | |
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334 | <tr> |
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335 | |
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336 | <td colspan="1" rowspan="1"><span class="codefrag">-conf <configuration file></span></td> |
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337 | <td colspan="1" rowspan="1">æå®åºçšçšåºçé
眮æ件ã</td> |
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338 | |
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339 | </tr> |
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340 | |
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341 | <tr> |
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342 | |
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343 | <td colspan="1" rowspan="1"><span class="codefrag">-D <property=value></span></td> |
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344 | <td colspan="1" rowspan="1">䞺æå®propertyæå®åŒvalueã</td> |
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345 | |
---|
346 | </tr> |
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347 | |
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348 | <tr> |
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349 | |
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350 | <td colspan="1" rowspan="1"><span class="codefrag">-fs <local|namenode:port></span></td> |
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351 | <td colspan="1" rowspan="1">æå®namenodeã</td> |
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352 | |
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353 | </tr> |
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354 | |
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355 | <tr> |
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356 | |
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357 | <td colspan="1" rowspan="1"><span class="codefrag">-jt <local|jobtracker:port></span></td> |
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358 | <td colspan="1" rowspan="1">æå®job trackerãåªéçšäº<a href="commands_manual.html#job">job</a>ã</td> |
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359 | |
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360 | </tr> |
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361 | |
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362 | <tr> |
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363 | |
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364 | <td colspan="1" rowspan="1"><span class="codefrag">-files <éå·åéçæ件åè¡š></span></td> |
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365 | <td colspan="1" rowspan="1">æå®èŠæ·èŽå°map reduceé矀çæ件çéå·åéçåè¡šã |
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366 | åªéçšäº<a href="commands_manual.html#job">job</a>ã</td> |
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367 | |
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368 | </tr> |
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369 | |
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370 | <tr> |
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371 | |
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372 | <td colspan="1" rowspan="1"><span class="codefrag">-libjars <éå·åéçjaråè¡š></span></td> |
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373 | <td colspan="1" rowspan="1">æå®èŠå
å«å°classpathäžçjaræ件çéå·åéçåè¡šã |
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374 | åªéçšäº<a href="commands_manual.html#job">job</a>ã</td> |
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375 | |
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376 | </tr> |
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377 | |
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378 | <tr> |
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379 | |
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380 | <td colspan="1" rowspan="1"><span class="codefrag">-archives <éå·åéçarchiveåè¡š></span></td> |
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381 | <td colspan="1" rowspan="1">æå®èŠè¢«è§£åå°è®¡ç®èç¹äžçæ¡£æ¡æ件çéå·åå²çåè¡šã |
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382 | åªéçšäº<a href="commands_manual.html#job">job</a>ã</td> |
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383 | |
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384 | </tr> |
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385 | |
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386 | </table> |
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387 | </div> |
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388 | |
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389 | |
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390 | <a name="N10103"></a><a name="%E7%94%A8%E6%88%B7%E5%91%BD%E4%BB%A4"></a> |
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391 | <h2 class="h3"> çšæ·åœä»€ </h2> |
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392 | <div class="section"> |
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393 | <p>hadoopé矀çšæ·çåžžçšåœä»€ã</p> |
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394 | <a name="N1010C"></a><a name="archive"></a> |
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395 | <h3 class="h4"> archive </h3> |
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396 | <p> |
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397 | å建äžäžªhadoopæ¡£æ¡æ件ãåè <a href="hadoop_archives.html">Hadoop Archives</a>. |
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398 | </p> |
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399 | <p> |
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400 | |
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401 | <span class="codefrag">çšæ³ïŒhadoop archive -archiveName NAME <src>* <dest></span> |
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402 | |
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403 | </p> |
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404 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
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405 | |
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406 | <tr> |
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407 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
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408 | </tr> |
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409 | |
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410 | <tr> |
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411 | |
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412 | <td colspan="1" rowspan="1"><span class="codefrag">-archiveName NAME</span></td> |
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413 | <td colspan="1" rowspan="1">èŠå建çæ¡£æ¡çååã</td> |
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414 | |
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415 | </tr> |
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416 | |
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417 | <tr> |
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418 | |
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419 | <td colspan="1" rowspan="1"><span class="codefrag">src</span></td> |
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420 | <td colspan="1" rowspan="1">æ件系ç»çè·¯åŸåïŒåéåžžå«æ£å衚蟟çäžæ ·ã</td> |
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421 | |
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422 | </tr> |
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423 | |
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424 | <tr> |
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425 | |
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426 | <td colspan="1" rowspan="1"><span class="codefrag">dest</span></td> |
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427 | <td colspan="1" rowspan="1">ä¿åæ¡£æ¡æ件çç®æ ç®åœã</td> |
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428 | |
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429 | </tr> |
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430 | |
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431 | </table> |
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432 | <a name="N10157"></a><a name="distcp"></a> |
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433 | <h3 class="h4"> distcp </h3> |
---|
434 | <p> |
---|
435 | éåœå°æ·èŽæ件æç®åœãåè<a href="distcp.html">DistCpæå</a>以è·åçå€ä¿¡æ¯ã |
---|
436 | </p> |
---|
437 | <p> |
---|
438 | |
---|
439 | <span class="codefrag">çšæ³ïŒhadoop distcp <srcurl> <desturl></span> |
---|
440 | |
---|
441 | </p> |
---|
442 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
443 | |
---|
444 | <tr> |
---|
445 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
446 | </tr> |
---|
447 | |
---|
448 | |
---|
449 | <tr> |
---|
450 | |
---|
451 | <td colspan="1" rowspan="1"><span class="codefrag">srcurl</span></td> |
---|
452 | <td colspan="1" rowspan="1">æºUrl</td> |
---|
453 | |
---|
454 | </tr> |
---|
455 | |
---|
456 | <tr> |
---|
457 | |
---|
458 | <td colspan="1" rowspan="1"><span class="codefrag">desturl</span></td> |
---|
459 | <td colspan="1" rowspan="1">ç®æ Url</td> |
---|
460 | |
---|
461 | </tr> |
---|
462 | |
---|
463 | </table> |
---|
464 | <a name="N10194"></a><a name="fs"></a> |
---|
465 | <h3 class="h4"> fs </h3> |
---|
466 | <p> |
---|
467 | |
---|
468 | <span class="codefrag">çšæ³ïŒhadoop fs [</span><a href="commands_manual.html#%E5%B8%B8%E8%A7%84%E9%80%89%E9%A1%B9">GENERIC_OPTIONS</a><span class="codefrag">] |
---|
469 | [COMMAND_OPTIONS]</span> |
---|
470 | |
---|
471 | </p> |
---|
472 | <p> |
---|
473 | è¿è¡äžäžªåžžè§çæ件系ç»å®¢æ·ç«¯ã |
---|
474 | </p> |
---|
475 | <p> |
---|
476 | åç§åœä»€é项å¯ä»¥åè<a href="hdfs_shell.html">HDFS Shellæå</a>ã |
---|
477 | </p> |
---|
478 | <a name="N101B0"></a><a name="fsck"></a> |
---|
479 | <h3 class="h4"> fsck </h3> |
---|
480 | <p> |
---|
481 | è¿è¡HDFSæ件系ç»æ£æ¥å·¥å
·ãåè<a href="hdfs_user_guide.html#fsck">Fsck</a>äºè§£æŽå€ã |
---|
482 | </p> |
---|
483 | <p> |
---|
484 | <span class="codefrag">çšæ³ïŒhadoop fsck [</span><a href="commands_manual.html#%E5%B8%B8%E8%A7%84%E9%80%89%E9%A1%B9">GENERIC_OPTIONS</a><span class="codefrag">] |
---|
485 | <path> [-move | -delete | -openforwrite] [-files [-blocks |
---|
486 | [-locations | -racks]]]</span> |
---|
487 | </p> |
---|
488 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
489 | |
---|
490 | <tr> |
---|
491 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿° </th> |
---|
492 | </tr> |
---|
493 | |
---|
494 | <tr> |
---|
495 | |
---|
496 | <td colspan="1" rowspan="1"><span class="codefrag"><path></span></td> |
---|
497 | <td colspan="1" rowspan="1">æ£æ¥çèµ·å§ç®åœã</td> |
---|
498 | |
---|
499 | </tr> |
---|
500 | |
---|
501 | <tr> |
---|
502 | |
---|
503 | <td colspan="1" rowspan="1"><span class="codefrag">-move</span></td> |
---|
504 | <td colspan="1" rowspan="1">移åšåææ件å°/lost+found</td> |
---|
505 | |
---|
506 | </tr> |
---|
507 | |
---|
508 | <tr> |
---|
509 | |
---|
510 | <td colspan="1" rowspan="1"><span class="codefrag">-delete</span></td> |
---|
511 | <td colspan="1" rowspan="1">å é€åææ件ã</td> |
---|
512 | |
---|
513 | </tr> |
---|
514 | |
---|
515 | <tr> |
---|
516 | |
---|
517 | <td colspan="1" rowspan="1"><span class="codefrag">-openforwrite</span></td> |
---|
518 | <td colspan="1" rowspan="1">æå°åºåæåŒçæ件ã</td> |
---|
519 | |
---|
520 | </tr> |
---|
521 | |
---|
522 | <tr> |
---|
523 | |
---|
524 | <td colspan="1" rowspan="1"><span class="codefrag">-files</span></td> |
---|
525 | <td colspan="1" rowspan="1">æå°åºæ£è¢«æ£æ¥çæ件ã</td> |
---|
526 | |
---|
527 | </tr> |
---|
528 | |
---|
529 | <tr> |
---|
530 | |
---|
531 | <td colspan="1" rowspan="1"><span class="codefrag">-blocks</span></td> |
---|
532 | <td colspan="1" rowspan="1">æå°åºåä¿¡æ¯æ¥åã</td> |
---|
533 | |
---|
534 | </tr> |
---|
535 | |
---|
536 | <tr> |
---|
537 | |
---|
538 | <td colspan="1" rowspan="1"><span class="codefrag">-locations</span></td> |
---|
539 | <td colspan="1" rowspan="1">æå°åºæ¯äžªåçäœçœ®ä¿¡æ¯ã</td> |
---|
540 | |
---|
541 | </tr> |
---|
542 | |
---|
543 | <tr> |
---|
544 | |
---|
545 | <td colspan="1" rowspan="1"><span class="codefrag">-racks</span></td> |
---|
546 | <td colspan="1" rowspan="1">æå°åºdata-nodeççœç»ææç»æã</td> |
---|
547 | |
---|
548 | </tr> |
---|
549 | |
---|
550 | </table> |
---|
551 | <a name="N10244"></a><a name="jar"></a> |
---|
552 | <h3 class="h4"> jar </h3> |
---|
553 | <p> |
---|
554 | è¿è¡jaræ件ãçšæ·å¯ä»¥æä»ä»¬çMap Reduce代ç æç»å°jaræ件äžïŒäœ¿çšè¿äžªåœä»€æ§è¡ã |
---|
555 | </p> |
---|
556 | <p> |
---|
557 | |
---|
558 | <span class="codefrag">çšæ³ïŒhadoop jar <jar> [mainClass] args...</span> |
---|
559 | |
---|
560 | </p> |
---|
561 | <p> |
---|
562 | streamingäœäžæ¯éè¿è¿äžªåœä»€æ§è¡çãåè<a href="streaming.html#%E5%85%B6%E4%BB%96%E4%BE%8B%E5%AD%90">Streaming examples</a>äžçäŸåã |
---|
563 | </p> |
---|
564 | <p> |
---|
565 | Word countäŸåä¹æ¯éè¿jaråœä»€è¿è¡çãåè<a href="mapred_tutorial.html#%E7%94%A8%E6%B3%95">Wordcount example</a>ã |
---|
566 | </p> |
---|
567 | <a name="N10262"></a><a name="job"></a> |
---|
568 | <h3 class="h4"> job </h3> |
---|
569 | <p> |
---|
570 | çšäºåMap Reduceäœäžäº€äºååœä»€ã |
---|
571 | </p> |
---|
572 | <p> |
---|
573 | |
---|
574 | <span class="codefrag">çšæ³ïŒhadoop job [</span><a href="commands_manual.html#%E5%B8%B8%E8%A7%84%E9%80%89%E9%A1%B9">GENERIC_OPTIONS</a><span class="codefrag">] |
---|
575 | [-submit <job-file>] | [-status <job-id>] | |
---|
576 | [-counter <job-id> <group-name> <counter-name>] | [-kill <job-id>] | |
---|
577 | [-events <job-id> <from-event-#> <#-of-events>] | [-history [all] <jobOutputDir>] | |
---|
578 | [-list [all]] | [-kill-task <task-id>] | [-fail-task <task-id>]</span> |
---|
579 | |
---|
580 | </p> |
---|
581 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
582 | |
---|
583 | <tr> |
---|
584 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
585 | </tr> |
---|
586 | |
---|
587 | |
---|
588 | <tr> |
---|
589 | |
---|
590 | <td colspan="1" rowspan="1"><span class="codefrag">-submit <job-file></span></td> |
---|
591 | <td colspan="1" rowspan="1">æ亀äœäž</td> |
---|
592 | |
---|
593 | </tr> |
---|
594 | |
---|
595 | <tr> |
---|
596 | |
---|
597 | <td colspan="1" rowspan="1"><span class="codefrag">-status <job-id></span></td> |
---|
598 | <td colspan="1" rowspan="1">æå°mapåreduceå®æçŸåæ¯åææ计æ°åšã</td> |
---|
599 | |
---|
600 | </tr> |
---|
601 | |
---|
602 | <tr> |
---|
603 | |
---|
604 | <td colspan="1" rowspan="1"><span class="codefrag">-counter <job-id> <group-name> <counter-name></span></td> |
---|
605 | <td colspan="1" rowspan="1">æå°è®¡æ°åšçåŒã</td> |
---|
606 | |
---|
607 | </tr> |
---|
608 | |
---|
609 | <tr> |
---|
610 | |
---|
611 | <td colspan="1" rowspan="1"><span class="codefrag">-kill <job-id></span></td> |
---|
612 | <td colspan="1" rowspan="1">ææ»æå®äœäžã</td> |
---|
613 | |
---|
614 | </tr> |
---|
615 | |
---|
616 | <tr> |
---|
617 | |
---|
618 | <td colspan="1" rowspan="1"><span class="codefrag">-events <job-id> <from-event-#> <#-of-events></span></td> |
---|
619 | <td colspan="1" rowspan="1">æå°ç»å®èåŽå
jobtrackeræ¥æ¶å°çäºä»¶ç»èã</td> |
---|
620 | |
---|
621 | </tr> |
---|
622 | |
---|
623 | <tr> |
---|
624 | |
---|
625 | <td colspan="1" rowspan="1"><span class="codefrag">-history [all] <jobOutputDir></span></td> |
---|
626 | <td colspan="1" rowspan="1">-history <jobOutputDir> æå°äœäžçç»èã倱莥å被ææ»åå çç»èãæŽå€çå
³äºäžäžªäœäžçç»èæ¯åŠæåçä»»å¡ïŒåè¿çä»»å¡å°è¯çä¿¡æ¯å¯ä»¥éè¿æå®[all]é项æ¥çã |
---|
627 | </td> |
---|
628 | |
---|
629 | </tr> |
---|
630 | |
---|
631 | <tr> |
---|
632 | |
---|
633 | <td colspan="1" rowspan="1"><span class="codefrag">-list [all]</span></td> |
---|
634 | <td colspan="1" rowspan="1">-list allæŸç€ºææäœäžã-liståªæŸç€ºå°èŠå®æçäœäžã</td> |
---|
635 | |
---|
636 | </tr> |
---|
637 | |
---|
638 | <tr> |
---|
639 | |
---|
640 | <td colspan="1" rowspan="1"><span class="codefrag">-kill-task <task-id></span></td> |
---|
641 | <td colspan="1" rowspan="1">ææ»ä»»å¡ã被ææ»çä»»å¡äžäŒäžå©äºå€±èŽ¥å°è¯ã</td> |
---|
642 | |
---|
643 | </tr> |
---|
644 | |
---|
645 | <tr> |
---|
646 | |
---|
647 | <td colspan="1" rowspan="1"><span class="codefrag">-fail-task <task-id></span></td> |
---|
648 | <td colspan="1" rowspan="1">䜿任å¡å€±èŽ¥ã被倱莥çä»»å¡äŒå¯¹å€±èŽ¥å°è¯äžå©ã</td> |
---|
649 | |
---|
650 | </tr> |
---|
651 | |
---|
652 | </table> |
---|
653 | <a name="N10302"></a><a name="pipes"></a> |
---|
654 | <h3 class="h4"> pipes </h3> |
---|
655 | <p> |
---|
656 | è¿è¡pipesäœäžã |
---|
657 | </p> |
---|
658 | <p> |
---|
659 | |
---|
660 | <span class="codefrag">çšæ³ïŒhadoop pipes [-conf <path>] [-jobconf <key=value>, <key=value>, ...] |
---|
661 | [-input <path>] [-output <path>] [-jar <jar file>] [-inputformat <class>] |
---|
662 | [-map <class>] [-partitioner <class>] [-reduce <class>] [-writer <class>] |
---|
663 | [-program <executable>] [-reduces <num>] </span> |
---|
664 | |
---|
665 | </p> |
---|
666 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
667 | |
---|
668 | <tr> |
---|
669 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
670 | </tr> |
---|
671 | |
---|
672 | |
---|
673 | <tr> |
---|
674 | |
---|
675 | <td colspan="1" rowspan="1"><span class="codefrag">-conf <path></span></td> |
---|
676 | <td colspan="1" rowspan="1">äœäžçé
眮</td> |
---|
677 | |
---|
678 | </tr> |
---|
679 | |
---|
680 | <tr> |
---|
681 | |
---|
682 | <td colspan="1" rowspan="1"><span class="codefrag">-jobconf <key=value>, <key=value>, ...</span></td> |
---|
683 | <td colspan="1" rowspan="1">å¢å /èŠçäœäžçé
眮项</td> |
---|
684 | |
---|
685 | </tr> |
---|
686 | |
---|
687 | <tr> |
---|
688 | |
---|
689 | <td colspan="1" rowspan="1"><span class="codefrag">-input <path></span></td> |
---|
690 | <td colspan="1" rowspan="1">èŸå
¥ç®åœ</td> |
---|
691 | |
---|
692 | </tr> |
---|
693 | |
---|
694 | <tr> |
---|
695 | |
---|
696 | <td colspan="1" rowspan="1"><span class="codefrag">-output <path></span></td> |
---|
697 | <td colspan="1" rowspan="1">èŸåºç®åœ</td> |
---|
698 | |
---|
699 | </tr> |
---|
700 | |
---|
701 | <tr> |
---|
702 | |
---|
703 | <td colspan="1" rowspan="1"><span class="codefrag">-jar <jar file></span></td> |
---|
704 | <td colspan="1" rowspan="1">Jaræ件å</td> |
---|
705 | |
---|
706 | </tr> |
---|
707 | |
---|
708 | <tr> |
---|
709 | |
---|
710 | <td colspan="1" rowspan="1"><span class="codefrag">-inputformat <class></span></td> |
---|
711 | <td colspan="1" rowspan="1">InputFormatç±»</td> |
---|
712 | |
---|
713 | </tr> |
---|
714 | |
---|
715 | <tr> |
---|
716 | |
---|
717 | <td colspan="1" rowspan="1"><span class="codefrag">-map <class></span></td> |
---|
718 | <td colspan="1" rowspan="1">Java Mapç±»</td> |
---|
719 | |
---|
720 | </tr> |
---|
721 | |
---|
722 | <tr> |
---|
723 | |
---|
724 | <td colspan="1" rowspan="1"><span class="codefrag">-partitioner <class></span></td> |
---|
725 | <td colspan="1" rowspan="1">Java Partitioner</td> |
---|
726 | |
---|
727 | </tr> |
---|
728 | |
---|
729 | <tr> |
---|
730 | |
---|
731 | <td colspan="1" rowspan="1"><span class="codefrag">-reduce <class></span></td> |
---|
732 | <td colspan="1" rowspan="1">Java Reduceç±»</td> |
---|
733 | |
---|
734 | </tr> |
---|
735 | |
---|
736 | <tr> |
---|
737 | |
---|
738 | <td colspan="1" rowspan="1"><span class="codefrag">-writer <class></span></td> |
---|
739 | <td colspan="1" rowspan="1">Java RecordWriter</td> |
---|
740 | |
---|
741 | </tr> |
---|
742 | |
---|
743 | <tr> |
---|
744 | |
---|
745 | <td colspan="1" rowspan="1"><span class="codefrag">-program <executable></span></td> |
---|
746 | <td colspan="1" rowspan="1">å¯æ§è¡çšåºçURI</td> |
---|
747 | |
---|
748 | </tr> |
---|
749 | |
---|
750 | <tr> |
---|
751 | |
---|
752 | <td colspan="1" rowspan="1"><span class="codefrag">-reduces <num></span></td> |
---|
753 | <td colspan="1" rowspan="1">reduce䞪æ°</td> |
---|
754 | |
---|
755 | </tr> |
---|
756 | |
---|
757 | </table> |
---|
758 | <a name="N103C7"></a><a name="version"></a> |
---|
759 | <h3 class="h4"> version </h3> |
---|
760 | <p> |
---|
761 | æå°çæ¬ä¿¡æ¯ã |
---|
762 | </p> |
---|
763 | <p> |
---|
764 | |
---|
765 | <span class="codefrag">çšæ³ïŒhadoop version</span> |
---|
766 | |
---|
767 | </p> |
---|
768 | <a name="N103D7"></a><a name="CLASSNAME"></a> |
---|
769 | <h3 class="h4"> CLASSNAME </h3> |
---|
770 | <p> |
---|
771 | hadoopèæ¬å¯çšäºè°è°çšä»»äœç±»ã |
---|
772 | </p> |
---|
773 | <p> |
---|
774 | |
---|
775 | <span class="codefrag">çšæ³ïŒhadoop CLASSNAME</span> |
---|
776 | |
---|
777 | </p> |
---|
778 | <p> |
---|
779 | è¿è¡åå䞺CLASSNAMEçç±»ã |
---|
780 | </p> |
---|
781 | </div> |
---|
782 | |
---|
783 | |
---|
784 | <a name="N103EB"></a><a name="%E7%AE%A1%E7%90%86%E5%91%BD%E4%BB%A4"></a> |
---|
785 | <h2 class="h3">管çåœä»€</h2> |
---|
786 | <div class="section"> |
---|
787 | <p>hadoopé矀管çååžžçšçåœä»€ã</p> |
---|
788 | <a name="N103F4"></a><a name="balancer"></a> |
---|
789 | <h3 class="h4"> balancer </h3> |
---|
790 | <p> |
---|
791 | è¿è¡é矀平衡工å
·ã管çåå¯ä»¥ç®åçæCtrl-Cæ¥åæ¢å¹³è¡¡è¿çšãåè<a href="hdfs_user_guide.html#Rebalancer">Rebalancer</a>äºè§£æŽå€ã |
---|
792 | </p> |
---|
793 | <p> |
---|
794 | |
---|
795 | <span class="codefrag">çšæ³ïŒhadoop balancer [-threshold <threshold>]</span> |
---|
796 | |
---|
797 | </p> |
---|
798 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
799 | |
---|
800 | <tr> |
---|
801 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
802 | </tr> |
---|
803 | |
---|
804 | |
---|
805 | <tr> |
---|
806 | |
---|
807 | <td colspan="1" rowspan="1"><span class="codefrag">-threshold <threshold></span></td> |
---|
808 | <td colspan="1" rowspan="1">ç£ç容éççŸåæ¯ãè¿äŒèŠç猺ççéåŒã</td> |
---|
809 | |
---|
810 | </tr> |
---|
811 | |
---|
812 | </table> |
---|
813 | <a name="N10423"></a><a name="daemonlog"></a> |
---|
814 | <h3 class="h4"> daemonlog </h3> |
---|
815 | <p> |
---|
816 | è·åæ讟眮æ¯äžªå®æ€è¿çšçæ¥å¿çº§å«ã |
---|
817 | </p> |
---|
818 | <p> |
---|
819 | |
---|
820 | <span class="codefrag">çšæ³ïŒhadoop daemonlog -getlevel <host:port> <name></span> |
---|
821 | <br> |
---|
822 | |
---|
823 | <span class="codefrag">çšæ³ïŒhadoop daemonlog -setlevel <host:port> <name> <level></span> |
---|
824 | |
---|
825 | </p> |
---|
826 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
827 | |
---|
828 | <tr> |
---|
829 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
830 | </tr> |
---|
831 | |
---|
832 | |
---|
833 | <tr> |
---|
834 | |
---|
835 | <td colspan="1" rowspan="1"><span class="codefrag">-getlevel <host:port> <name></span></td> |
---|
836 | <td colspan="1" rowspan="1">æå°è¿è¡åš<host:port>çå®æ€è¿çšçæ¥å¿çº§å«ãè¿äžªåœä»€å
éšäŒè¿æ¥http://<host:port>/logLevel?log=<name></td> |
---|
837 | |
---|
838 | </tr> |
---|
839 | |
---|
840 | <tr> |
---|
841 | |
---|
842 | <td colspan="1" rowspan="1"><span class="codefrag">-setlevel <host:port> <name> <level></span></td> |
---|
843 | <td colspan="1" rowspan="1">讟眮è¿è¡åš<host:port>çå®æ€è¿çšçæ¥å¿çº§å«ãè¿äžªåœä»€å
éšäŒè¿æ¥http://<host:port>/logLevel?log=<name></td> |
---|
844 | |
---|
845 | </tr> |
---|
846 | |
---|
847 | </table> |
---|
848 | <a name="N10460"></a><a name="datanode"></a> |
---|
849 | <h3 class="h4"> datanode</h3> |
---|
850 | <p> |
---|
851 | è¿è¡äžäžªHDFSçdatanodeã |
---|
852 | </p> |
---|
853 | <p> |
---|
854 | |
---|
855 | <span class="codefrag">çšæ³ïŒhadoop datanode [-rollback]</span> |
---|
856 | |
---|
857 | </p> |
---|
858 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
859 | |
---|
860 | <tr> |
---|
861 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
862 | </tr> |
---|
863 | |
---|
864 | |
---|
865 | <tr> |
---|
866 | |
---|
867 | <td colspan="1" rowspan="1"><span class="codefrag">-rollback</span></td> |
---|
868 | <td colspan="1" rowspan="1">å°datanodeåæ»å°åäžäžªçæ¬ãè¿éèŠåšåæ¢datanodeïŒååèçhadoopçæ¬ä¹å䜿çšã |
---|
869 | </td> |
---|
870 | |
---|
871 | </tr> |
---|
872 | |
---|
873 | </table> |
---|
874 | <a name="N1048B"></a><a name="dfsadmin"></a> |
---|
875 | <h3 class="h4"> dfsadmin </h3> |
---|
876 | <p> |
---|
877 | è¿è¡äžäžªHDFSçdfsadmin客æ·ç«¯ã |
---|
878 | </p> |
---|
879 | <p> |
---|
880 | |
---|
881 | <span class="codefrag">çšæ³ïŒhadoop dfsadmin [</span><a href="commands_manual.html#%E5%B8%B8%E8%A7%84%E9%80%89%E9%A1%B9">GENERIC_OPTIONS</a><span class="codefrag">] [-report] [-safemode enter | leave | get | wait] [-refreshNodes] |
---|
882 | [-finalizeUpgrade] [-upgradeProgress status | details | force] [-metasave filename] |
---|
883 | [-setQuota <quota> <dirname>...<dirname>] [-clrQuota <dirname>...<dirname>] |
---|
884 | [-help [cmd]]</span> |
---|
885 | |
---|
886 | </p> |
---|
887 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
888 | |
---|
889 | <tr> |
---|
890 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
891 | </tr> |
---|
892 | |
---|
893 | |
---|
894 | <tr> |
---|
895 | |
---|
896 | <td colspan="1" rowspan="1"><span class="codefrag">-report</span></td> |
---|
897 | <td colspan="1" rowspan="1">æ¥åæ件系ç»çåºæ¬ä¿¡æ¯åç»è®¡ä¿¡æ¯ã</td> |
---|
898 | |
---|
899 | </tr> |
---|
900 | |
---|
901 | <tr> |
---|
902 | |
---|
903 | <td colspan="1" rowspan="1"><span class="codefrag">-safemode enter | leave | get | wait</span></td> |
---|
904 | <td colspan="1" rowspan="1">å®å
šæš¡åŒç»Žæ€åœä»€ãå®å
šæš¡åŒæ¯Namenodeçäžäžªç¶æïŒè¿ç§ç¶æäžïŒNamenode <br> |
---|
905 | 1. äžæ¥å对åå空éŽçæŽæ¹(åªè¯»)<br> |
---|
906 | 2. äžå€å¶æå é€å<br> |
---|
907 | NamenodeäŒåšå¯åšæ¶èªåšè¿å
¥å®å
šæš¡åŒïŒåœé
眮çåæå°çŸåæ¯æ°æ»¡è¶³æå°çå¯æ¬æ°æ¡ä»¶æ¶ïŒäŒèªåšçŠ»åŒå®å
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¥ïŒäœæ¯è¿æ ·çè¯ä¹å¿
é¡»æåšå
³éå®å
šæš¡åŒã |
---|
908 | </td> |
---|
909 | |
---|
910 | </tr> |
---|
911 | |
---|
912 | <tr> |
---|
913 | |
---|
914 | <td colspan="1" rowspan="1"><span class="codefrag">-refreshNodes</span></td> |
---|
915 | <td colspan="1" rowspan="1">éæ°è¯»åhostsåexcludeæ件ïŒæŽæ°å
讞è¿å°Namenodeçæé£äºéèŠéåºæå
¥çŒçDatanodeçéåã |
---|
916 | </td> |
---|
917 | |
---|
918 | </tr> |
---|
919 | |
---|
920 | <tr> |
---|
921 | |
---|
922 | <td colspan="1" rowspan="1"><span class="codefrag">-finalizeUpgrade</span></td> |
---|
923 | <td colspan="1" rowspan="1">ç»ç»HDFSçå级æäœãDatanodeå é€åäžäžªçæ¬çå·¥äœç®åœïŒä¹åNamenodeä¹è¿æ ·åãè¿äžªæäœå®ç»æŽäžªå级è¿çšã |
---|
924 | </td> |
---|
925 | |
---|
926 | </tr> |
---|
927 | |
---|
928 | <tr> |
---|
929 | |
---|
930 | <td colspan="1" rowspan="1"><span class="codefrag">-upgradeProgress status | details | force</span></td> |
---|
931 | <td colspan="1" rowspan="1">请æ±åœåç³»ç»çå级ç¶æïŒç¶æçç»èïŒæè
区å¶å级æäœè¿è¡ã |
---|
932 | </td> |
---|
933 | |
---|
934 | </tr> |
---|
935 | |
---|
936 | <tr> |
---|
937 | |
---|
938 | <td colspan="1" rowspan="1"><span class="codefrag">-metasave filename</span></td> |
---|
939 | <td colspan="1" rowspan="1">ä¿åNamenodeçäž»èŠæ°æ®ç»æå°hadoop.log.dirå±æ§æå®çç®åœäžç<filename>æ件ã对äºäžé¢çæ¯äžé¡¹ïŒ<filename>äžéœäŒäžè¡å
容äžä¹å¯¹åº<br> |
---|
940 | 1. Namenodeæ¶å°çDatanodeçå¿è·³ä¿¡å·<br> |
---|
941 | 2. çåŸ
被å€å¶çå<br> |
---|
942 | 3. æ£åšè¢«å€å¶çå<br> |
---|
943 | 4. çåŸ
被å é€çå</td> |
---|
944 | |
---|
945 | </tr> |
---|
946 | |
---|
947 | <tr> |
---|
948 | |
---|
949 | <td colspan="1" rowspan="1"><span class="codefrag">-setQuota <quota> <dirname>...<dirname></span></td> |
---|
950 | <td colspan="1" rowspan="1">䞺æ¯äžªç®åœ <dirname>讟å®é
é¢<quota>ãç®åœé
é¢æ¯äžäžªé¿æŽåæŽæ°ïŒåŒºå¶éå®äºç®åœæ äžçåå䞪æ°ã<br> |
---|
951 | åœä»€äŒåšè¿äžªç®åœäžå·¥äœè¯å¥œïŒä»¥äžæ
åµäŒæ¥éïŒ<br> |
---|
952 | 1. Näžæ¯äžäžªæ£æŽæ°ïŒæè
<br> |
---|
953 | 2. çšæ·äžæ¯ç®¡çåïŒæè
<br> |
---|
954 | 3. è¿äžªç®åœäžååšææ¯æ件ïŒæè
<br> |
---|
955 | 4. ç®åœäŒé©¬äžè¶
åºæ°è®Ÿå®çé
é¢ã</td> |
---|
956 | |
---|
957 | </tr> |
---|
958 | |
---|
959 | <tr> |
---|
960 | |
---|
961 | <td colspan="1" rowspan="1"><span class="codefrag">-clrQuota <dirname>...<dirname></span></td> |
---|
962 | <td colspan="1" rowspan="1">䞺æ¯äžäžªç®åœ<dirname>æž
é€é
é¢è®Ÿå®ã<br> |
---|
963 | åœä»€äŒåšè¿äžªç®åœäžå·¥äœè¯å¥œïŒä»¥äžæ
åµäŒæ¥éïŒ<br> |
---|
964 | 1. è¿äžªç®åœäžååšææ¯æ件ïŒæè
<br> |
---|
965 | 2. çšæ·äžæ¯ç®¡çåã<br> |
---|
966 | åŠæç®åœåæ¥æ²¡æé
é¢äžäŒæ¥éã</td> |
---|
967 | |
---|
968 | </tr> |
---|
969 | |
---|
970 | <tr> |
---|
971 | |
---|
972 | <td colspan="1" rowspan="1"><span class="codefrag">-help [cmd]</span></td> |
---|
973 | <td colspan="1" rowspan="1">æŸç€ºç»å®åœä»€çåž®å©ä¿¡æ¯ïŒåŠæ没æç»å®åœä»€ïŒåæŸç€ºææåœä»€çåž®å©ä¿¡æ¯ã</td> |
---|
974 | |
---|
975 | </tr> |
---|
976 | |
---|
977 | </table> |
---|
978 | <a name="N1054B"></a><a name="jobtracker"></a> |
---|
979 | <h3 class="h4"> jobtracker </h3> |
---|
980 | <p> |
---|
981 | è¿è¡MapReduce job Trackerèç¹ã |
---|
982 | </p> |
---|
983 | <p> |
---|
984 | |
---|
985 | <span class="codefrag">çšæ³ïŒhadoop jobtracker</span> |
---|
986 | |
---|
987 | </p> |
---|
988 | <a name="N1055B"></a><a name="namenode"></a> |
---|
989 | <h3 class="h4"> namenode </h3> |
---|
990 | <p> |
---|
991 | è¿è¡namenodeãæå
³å级ïŒåæ»ïŒå级ç»ç»çæŽå€ä¿¡æ¯è¯·åè<a href="hdfs_user_guide.html#%E5%8D%87%E7%BA%A7%E5%92%8C%E5%9B%9E%E6%BB%9A">å级ååæ»</a>ã |
---|
992 | </p> |
---|
993 | <p> |
---|
994 | |
---|
995 | <span class="codefrag">çšæ³ïŒhadoop namenode [-format] | [-upgrade] | [-rollback] | [-finalize] | [-importCheckpoint]</span> |
---|
996 | |
---|
997 | </p> |
---|
998 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
999 | |
---|
1000 | <tr> |
---|
1001 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
1002 | </tr> |
---|
1003 | |
---|
1004 | |
---|
1005 | <tr> |
---|
1006 | |
---|
1007 | <td colspan="1" rowspan="1"><span class="codefrag">-format</span></td> |
---|
1008 | <td colspan="1" rowspan="1">æ ŒåŒånamenodeãå®å¯åšnamenodeïŒæ ŒåŒånamenodeïŒä¹åå
³énamenodeã</td> |
---|
1009 | |
---|
1010 | </tr> |
---|
1011 | |
---|
1012 | <tr> |
---|
1013 | |
---|
1014 | <td colspan="1" rowspan="1"><span class="codefrag">-upgrade</span></td> |
---|
1015 | <td colspan="1" rowspan="1">ååæ°çæ¬çhadoopåïŒnamenodeåºä»¥upgradeé项å¯åšã</td> |
---|
1016 | |
---|
1017 | </tr> |
---|
1018 | |
---|
1019 | <tr> |
---|
1020 | |
---|
1021 | <td colspan="1" rowspan="1"><span class="codefrag">-rollback</span></td> |
---|
1022 | <td colspan="1" rowspan="1">å°namenodeåæ»å°åäžçæ¬ãè¿äžªé项èŠåšåæ¢é矀ïŒååèçhadoopçæ¬å䜿çšã |
---|
1023 | </td> |
---|
1024 | |
---|
1025 | </tr> |
---|
1026 | |
---|
1027 | <tr> |
---|
1028 | |
---|
1029 | <td colspan="1" rowspan="1"><span class="codefrag">-finalize</span></td> |
---|
1030 | <td colspan="1" rowspan="1">finalizeäŒå é€æ件系ç»çåäžç¶æãæè¿çå级äŒè¢«æä¹
åïŒrollbacké项å°åäžå¯çšïŒå级ç»ç»æäœä¹åïŒå®äŒåænamenodeã</td> |
---|
1031 | |
---|
1032 | </tr> |
---|
1033 | |
---|
1034 | <tr> |
---|
1035 | |
---|
1036 | <td colspan="1" rowspan="1"><span class="codefrag">-importCheckpoint</span></td> |
---|
1037 | <td colspan="1" rowspan="1">ä»æ£æ¥ç¹ç®åœè£
蜜éå并ä¿åå°åœåæ£æ¥ç¹ç®åœïŒæ£æ¥ç¹ç®åœç±fs.checkpoint.diræå®ã |
---|
1038 | </td> |
---|
1039 | |
---|
1040 | </tr> |
---|
1041 | |
---|
1042 | </table> |
---|
1043 | <a name="N105C2"></a><a name="secondarynamenode"></a> |
---|
1044 | <h3 class="h4"> secondarynamenode </h3> |
---|
1045 | <p> |
---|
1046 | è¿è¡HDFSçsecondary namenodeãåè<a href="hdfs_user_guide.html#Secondary+NameNode">Secondary Namenode</a>äºè§£æŽå€ã |
---|
1047 | </p> |
---|
1048 | <p> |
---|
1049 | |
---|
1050 | <span class="codefrag">çšæ³ïŒhadoop secondarynamenode [-checkpoint [force]] | [-geteditsize]</span> |
---|
1051 | |
---|
1052 | </p> |
---|
1053 | <table class="ForrestTable" cellspacing="1" cellpadding="4"> |
---|
1054 | |
---|
1055 | <tr> |
---|
1056 | <th colspan="1" rowspan="1"> åœä»€é项 </th><th colspan="1" rowspan="1"> æè¿°</th> |
---|
1057 | </tr> |
---|
1058 | |
---|
1059 | |
---|
1060 | <tr> |
---|
1061 | |
---|
1062 | <td colspan="1" rowspan="1"><span class="codefrag">-checkpoint [force]</span></td> |
---|
1063 | <td colspan="1" rowspan="1">åŠæEditLogçå€§å° >= fs.checkpoint.sizeïŒå¯åšSecondary namenodeçæ£æ¥ç¹è¿çšã |
---|
1064 | åŠæ䜿çšäº-forceïŒå°äžèèEditLogç倧å°ã</td> |
---|
1065 | |
---|
1066 | </tr> |
---|
1067 | |
---|
1068 | <tr> |
---|
1069 | |
---|
1070 | <td colspan="1" rowspan="1"><span class="codefrag">-geteditsize</span></td> |
---|
1071 | <td colspan="1" rowspan="1">æå°EditLog倧å°ã</td> |
---|
1072 | |
---|
1073 | </tr> |
---|
1074 | |
---|
1075 | </table> |
---|
1076 | <a name="N105FF"></a><a name="tasktracker"></a> |
---|
1077 | <h3 class="h4"> tasktracker </h3> |
---|
1078 | <p> |
---|
1079 | è¿è¡MapReduceçtask Trackerèç¹ã |
---|
1080 | </p> |
---|
1081 | <p> |
---|
1082 | |
---|
1083 | <span class="codefrag">çšæ³ïŒhadoop tasktracker</span> |
---|
1084 | |
---|
1085 | </p> |
---|
1086 | </div> |
---|
1087 | |
---|
1088 | |
---|
1089 | |
---|
1090 | |
---|
1091 | |
---|
1092 | </div> |
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1093 | <!--+ |
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1094 | |end content |
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1095 | +--> |
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1096 | <div class="clearboth"> </div> |
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1097 | </div> |
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1098 | <div id="footer"> |
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1099 | <!--+ |
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1100 | |start bottomstrip |
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1101 | +--> |
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1102 | <div class="lastmodified"> |
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1103 | <script type="text/javascript"><!-- |
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1104 | document.write("Last Published: " + document.lastModified); |
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1105 | // --></script> |
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1106 | </div> |
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1107 | <div class="copyright"> |
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1108 | Copyright © |
---|
1109 | 2007 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a> |
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1110 | </div> |
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1111 | <!--+ |
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