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    252. 

  252.                        <h5>MapReduce REST APIs</h5>
    253. 

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  261.                        <h5>YARN</h5>
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  462.                        <h5>Reference</h5>
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    477. 

  477.                        <h5>Configuration</h5>
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  486.                   <a href="../../../../hadoop-project-dist/hadoop-hdfs-rbf/hdfs-rbf-default.xml">hdfs-rbf-default.xml</a>
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  489.                   <a href="../../../../hadoop-mapreduce-client/hadoop-mapreduce-client-core/mapred-default.xml">mapred-default.xml</a>
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    492. 

  492.                   <a href="../../../../hadoop-yarn/hadoop-yarn-common/yarn-default.xml">yarn-default.xml</a>
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  495.                   <a href="../../../../hadoop-kms/kms-default.html">kms-default.xml</a>
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    529. 

  529. <h1>Apache Hadoop Changelog</h1><section>
    530. 

  530. <h2><a name="Release_0.12.0_-_2007-03-02"></a>Release 0.12.0 - 2007-03-02</h2><section>
    531. 

  531. <h3><a name="NEW_FEATURES:"></a>NEW FEATURES:</h3>
    532. 

  532. <table border="0" class="bodyTable">
    533. 

  533. <thead>
    534. 

  534. 

  535. <tr class="a">
    536. 

  536. <th align="left"> JIRA </th>
    537. 

  537. <th align="left"> Summary </th>
    538. 

  538. <th align="left"> Priority </th>
    539. 

  539. <th align="left"> Component </th>
    540. 

  540. <th align="left"> Reporter </th>
    541. 

  541. <th align="left"> Contributor </th></tr>
    542. 

  542. </thead><tbody>
    543. 

  543. 

  544. <tr class="b">
    545. 

  545. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-491">HADOOP-491</a> </td>
    546. 

  546. <td align="left"> streaming jobs should allow programs that don&#x2019;t do any IO for a long time </td>
    547. 

  547. <td align="left">  Major </td>
    548. 

  548. <td align="left"> . </td>
    549. 

  549. <td align="left"> arkady borkovsky </td>
    550. 

  550. <td align="left"> Arun C Murthy </td></tr>
    551. 

  551. <tr class="a">
    552. 

  552. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-492">HADOOP-492</a> </td>
    553. 

  553. <td align="left"> Global counters </td>
    554. 

  554. <td align="left">  Major </td>
    555. 

  555. <td align="left"> . </td>
    556. 

  556. <td align="left"> arkady borkovsky </td>
    557. 

  557. <td align="left"> David Bowen </td></tr>
    558. 

  558. <tr class="b">
    559. 

  559. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1032">HADOOP-1032</a> </td>
    560. 

  560. <td align="left"> Support for caching Job JARs </td>
    561. 

  561. <td align="left">  Minor </td>
    562. 

  562. <td align="left"> . </td>
    563. 

  563. <td align="left"> Gautam Kowshik </td>
    564. 

  564. <td align="left"> Gautam Kowshik </td></tr>
    565. 

  565. </tbody>
    566. 

  566. </table></section><section>
    567. 

  567. <h3><a name="IMPROVEMENTS:"></a>IMPROVEMENTS:</h3>
    568. 

  568. <table border="0" class="bodyTable">
    569. 

  569. <thead>
    570. 

  570. 

  571. <tr class="a">
    572. 

  572. <th align="left"> JIRA </th>
    573. 

  573. <th align="left"> Summary </th>
    574. 

  574. <th align="left"> Priority </th>
    575. 

  575. <th align="left"> Component </th>
    576. 

  576. <th align="left"> Reporter </th>
    577. 

  577. <th align="left"> Contributor </th></tr>
    578. 

  578. </thead><tbody>
    579. 

  579. 

  580. <tr class="b">
    581. 

  581. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-975">HADOOP-975</a> </td>
    582. 

  582. <td align="left"> Separation of user tasks&#x2019; stdout and stderr streams </td>
    583. 

  583. <td align="left">  Major </td>
    584. 

  584. <td align="left"> . </td>
    585. 

  585. <td align="left"> Arun C Murthy </td>
    586. 

  586. <td align="left"> Arun C Murthy </td></tr>
    587. 

  587. <tr class="a">
    588. 

  588. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-982">HADOOP-982</a> </td>
    589. 

  589. <td align="left"> A couple setter functions and toString method for BytesWritable. </td>
    590. 

  590. <td align="left">  Major </td>
    591. 

  591. <td align="left"> io </td>
    592. 

  592. <td align="left"> Owen O&#x2019;Malley </td>
    593. 

  593. <td align="left"> Owen O&#x2019;Malley </td></tr>
    594. 

  594. <tr class="b">
    595. 

  595. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-858">HADOOP-858</a> </td>
    596. 

  596. <td align="left"> clean up smallJobsBenchmark and move to src/test/org/apache/hadoop/mapred </td>
    597. 

  597. <td align="left">  Minor </td>
    598. 

  598. <td align="left"> build </td>
    599. 

  599. <td align="left"> Nigel Daley </td>
    600. 

  600. <td align="left"> Nigel Daley </td></tr>
    601. 

  601. <tr class="a">
    602. 

  602. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-954">HADOOP-954</a> </td>
    603. 

  603. <td align="left"> Metrics should offer complete set of static report methods or none at all </td>
    604. 

  604. <td align="left">  Minor </td>
    605. 

  605. <td align="left"> metrics </td>
    606. 

  606. <td align="left"> Nigel Daley </td>
    607. 

  607. <td align="left"> David Bowen </td></tr>
    608. 

  608. <tr class="b">
    609. 

  609. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-882">HADOOP-882</a> </td>
    610. 

  610. <td align="left"> S3FileSystem should retry if there is a communication problem with S3 </td>
    611. 

  611. <td align="left">  Major </td>
    612. 

  612. <td align="left"> fs </td>
    613. 

  613. <td align="left"> Tom White </td>
    614. 

  614. <td align="left"> Tom White </td></tr>
    615. 

  615. <tr class="a">
    616. 

  616. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-977">HADOOP-977</a> </td>
    617. 

  617. <td align="left"> The output from the user&#x2019;s task should be tagged and sent to the resepective console streams. </td>
    618. 

  618. <td align="left">  Major </td>
    619. 

  619. <td align="left"> . </td>
    620. 

  620. <td align="left"> Owen O&#x2019;Malley </td>
    621. 

  621. <td align="left"> Arun C Murthy </td></tr>
    622. 

  622. <tr class="b">
    623. 

  623. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1007">HADOOP-1007</a> </td>
    624. 

  624. <td align="left"> Names used for map, reduce, and shuffle metrics should be unique </td>
    625. 

  625. <td align="left">  Trivial </td>
    626. 

  626. <td align="left"> metrics </td>
    627. 

  627. <td align="left"> Nigel Daley </td>
    628. 

  628. <td align="left"> Nigel Daley </td></tr>
    629. 

  629. <tr class="a">
    630. 

  630. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-889">HADOOP-889</a> </td>
    631. 

  631. <td align="left"> DFS unit tests have duplicate code </td>
    632. 

  632. <td align="left">  Minor </td>
    633. 

  633. <td align="left"> test </td>
    634. 

  634. <td align="left"> Doug Cutting </td>
    635. 

  635. <td align="left"> Milind Bhandarkar </td></tr>
    636. 

  636. <tr class="b">
    637. 

  637. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-943">HADOOP-943</a> </td>
    638. 

  638. <td align="left"> fsck to show the filename of the corrupted file </td>
    639. 

  639. <td align="left">  Trivial </td>
    640. 

  640. <td align="left"> . </td>
    641. 

  641. <td align="left"> Koji Noguchi </td>
    642. 

  642. <td align="left"> dhruba borthakur </td></tr>
    643. 

  643. <tr class="a">
    644. 

  644. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-333">HADOOP-333</a> </td>
    645. 

  645. <td align="left"> we should have some checks that the sort benchmark generates correct outputs </td>
    646. 

  646. <td align="left">  Major </td>
    647. 

  647. <td align="left"> . </td>
    648. 

  648. <td align="left"> Owen O&#x2019;Malley </td>
    649. 

  649. <td align="left"> Arun C Murthy </td></tr>
    650. 

  650. <tr class="b">
    651. 

  651. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1017">HADOOP-1017</a> </td>
    652. 

  652. <td align="left"> Optimization: Reduce Overhead from ReflectionUtils.newInstance </td>
    653. 

  653. <td align="left">  Major </td>
    654. 

  654. <td align="left"> util </td>
    655. 

  655. <td align="left"> Ron Bodkin </td>
    656. 

  656. <td align="left">  </td></tr>
    657. 

  657. <tr class="a">
    658. 

  658. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-867">HADOOP-867</a> </td>
    659. 

  659. <td align="left"> job client should generate input fragments before the job is submitted </td>
    660. 

  660. <td align="left">  Major </td>
    661. 

  661. <td align="left"> . </td>
    662. 

  662. <td align="left"> Owen O&#x2019;Malley </td>
    663. 

  663. <td align="left">  </td></tr>
    664. 

  664. <tr class="b">
    665. 

  665. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-952">HADOOP-952</a> </td>
    666. 

  666. <td align="left"> Create a public (shared) Hadoop EC2 AMI </td>
    667. 

  667. <td align="left">  Major </td>
    668. 

  668. <td align="left"> scripts </td>
    669. 

  669. <td align="left"> Tom White </td>
    670. 

  670. <td align="left"> Tom White </td></tr>
    671. 

  671. <tr class="a">
    672. 

  672. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1025">HADOOP-1025</a> </td>
    673. 

  673. <td align="left"> remove dead code in Server.java </td>
    674. 

  674. <td align="left">  Minor </td>
    675. 

  675. <td align="left"> ipc </td>
    676. 

  676. <td align="left"> Doug Cutting </td>
    677. 

  677. <td align="left"> Doug Cutting </td></tr>
    678. 

  678. <tr class="b">
    679. 

  679. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-997">HADOOP-997</a> </td>
    680. 

  680. <td align="left"> Implement S3 retry mechanism for failed block transfers </td>
    681. 

  681. <td align="left">  Major </td>
    682. 

  682. <td align="left"> fs </td>
    683. 

  683. <td align="left"> Tom White </td>
    684. 

  684. <td align="left"> Tom White </td></tr>
    685. 

  685. <tr class="a">
    686. 

  686. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1030">HADOOP-1030</a> </td>
    687. 

  687. <td align="left"> in unit tests, set ipc timeout in one place </td>
    688. 

  688. <td align="left">  Minor </td>
    689. 

  689. <td align="left"> test </td>
    690. 

  690. <td align="left"> Doug Cutting </td>
    691. 

  691. <td align="left"> Doug Cutting </td></tr>
    692. 

  692. <tr class="b">
    693. 

  693. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-985">HADOOP-985</a> </td>
    694. 

  694. <td align="left"> Namenode should identify DataNodes as ip:port instead of hostname:port </td>
    695. 

  695. <td align="left">  Major </td>
    696. 

  696. <td align="left"> . </td>
    697. 

  697. <td align="left"> Raghu Angadi </td>
    698. 

  698. <td align="left"> Raghu Angadi </td></tr>
    699. 

  699. <tr class="a">
    700. 

  700. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-248">HADOOP-248</a> </td>
    701. 

  701. <td align="left"> locating map outputs via random probing is inefficient </td>
    702. 

  702. <td align="left">  Major </td>
    703. 

  703. <td align="left"> . </td>
    704. 

  704. <td align="left"> Owen O&#x2019;Malley </td>
    705. 

  705. <td align="left"> Devaraj Das </td></tr>
    706. 

  706. <tr class="b">
    707. 

  707. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1040">HADOOP-1040</a> </td>
    708. 

  708. <td align="left"> Improvement of RandomWriter example to use custom InputFormat, OutputFormat, and Counters </td>
    709. 

  709. <td align="left">  Major </td>
    710. 

  710. <td align="left"> . </td>
    711. 

  711. <td align="left"> Owen O&#x2019;Malley </td>
    712. 

  712. <td align="left"> Owen O&#x2019;Malley </td></tr>
    713. 

  713. <tr class="a">
    714. 

  714. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-928">HADOOP-928</a> </td>
    715. 

  715. <td align="left"> make checksums optional per FileSystem </td>
    716. 

  716. <td align="left">  Major </td>
    717. 

  717. <td align="left"> fs </td>
    718. 

  718. <td align="left"> Doug Cutting </td>
    719. 

  719. <td align="left"> Hairong Kuang </td></tr>
    720. 

  720. <tr class="b">
    721. 

  721. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1042">HADOOP-1042</a> </td>
    722. 

  722. <td align="left"> Improve the handling of failed map output fetches </td>
    723. 

  723. <td align="left">  Major </td>
    724. 

  724. <td align="left"> . </td>
    725. 

  725. <td align="left"> Devaraj Das </td>
    726. 

  726. <td align="left"> Devaraj Das </td></tr>
    727. 

  727. <tr class="a">
    728. 

  728. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-972">HADOOP-972</a> </td>
    729. 

  729. <td align="left"> Improve the rack-aware replica placement performance </td>
    730. 

  730. <td align="left">  Major </td>
    731. 

  731. <td align="left"> . </td>
    732. 

  732. <td align="left"> Hairong Kuang </td>
    733. 

  733. <td align="left"> Hairong Kuang </td></tr>
    734. 

  734. <tr class="b">
    735. 

  735. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1043">HADOOP-1043</a> </td>
    736. 

  736. <td align="left"> Optimize the shuffle phase (increase the parallelism) </td>
    737. 

  737. <td align="left">  Major </td>
    738. 

  738. <td align="left"> . </td>
    739. 

  739. <td align="left"> Devaraj Das </td>
    740. 

  740. <td align="left"> Devaraj Das </td></tr>
    741. 

  741. <tr class="a">
    742. 

  742. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-940">HADOOP-940</a> </td>
    743. 

  743. <td align="left"> pendingReplications of FSNamesystem is not informative </td>
    744. 

  744. <td align="left">  Major </td>
    745. 

  745. <td align="left"> . </td>
    746. 

  746. <td align="left"> Hairong Kuang </td>
    747. 

  747. <td align="left"> dhruba borthakur </td></tr>
    748. 

  748. <tr class="b">
    749. 

  749. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-941">HADOOP-941</a> </td>
    750. 

  750. <td align="left"> Enhancements to Hadoop record I/O - Part 1 </td>
    751. 

  751. <td align="left">  Major </td>
    752. 

  752. <td align="left"> record </td>
    753. 

  753. <td align="left"> Milind Bhandarkar </td>
    754. 

  754. <td align="left"> Milind Bhandarkar </td></tr>
    755. 

  755. <tr class="a">
    756. 

  756. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1041">HADOOP-1041</a> </td>
    757. 

  757. <td align="left"> Counter names are ugly </td>
    758. 

  758. <td align="left">  Major </td>
    759. 

  759. <td align="left"> . </td>
    760. 

  760. <td align="left"> Owen O&#x2019;Malley </td>
    761. 

  761. <td align="left"> David Bowen </td></tr>
    762. 

  762. <tr class="b">
    763. 

  763. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-432">HADOOP-432</a> </td>
    764. 

  764. <td align="left"> support undelete, snapshots, or other mechanism to recover lost files </td>
    765. 

  765. <td align="left">  Major </td>
    766. 

  766. <td align="left"> . </td>
    767. 

  767. <td align="left"> Yoram Arnon </td>
    768. 

  768. <td align="left"> Doug Cutting </td></tr>
    769. 

  769. <tr class="a">
    770. 

  770. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1033">HADOOP-1033</a> </td>
    771. 

  771. <td align="left"> Rewrite AmazonEC2 wiki page </td>
    772. 

  772. <td align="left">  Minor </td>
    773. 

  773. <td align="left"> scripts </td>
    774. 

  774. <td align="left"> Tom White </td>
    775. 

  775. <td align="left"> Tom White </td></tr>
    776. 

  776. </tbody>
    777. 

  777. </table></section><section>
    778. 

  778. <h3><a name="BUG_FIXES:"></a>BUG FIXES:</h3>
    779. 

  779. <table border="0" class="bodyTable">
    780. 

  780. <thead>
    781. 

  781. 

  782. <tr class="a">
    783. 

  783. <th align="left"> JIRA </th>
    784. 

  784. <th align="left"> Summary </th>
    785. 

  785. <th align="left"> Priority </th>
    786. 

  786. <th align="left"> Component </th>
    787. 

  787. <th align="left"> Reporter </th>
    788. 

  788. <th align="left"> Contributor </th></tr>
    789. 

  789. </thead><tbody>
    790. 

  790. 

  791. <tr class="b">
    792. 

  792. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-992">HADOOP-992</a> </td>
    793. 

  793. <td align="left"> The mini/mr cluster for testing always uses the local file system rather than the namenode that was passed in </td>
    794. 

  794. <td align="left">  Major </td>
    795. 

  795. <td align="left"> test </td>
    796. 

  796. <td align="left"> Owen O&#x2019;Malley </td>
    797. 

  797. <td align="left"> Owen O&#x2019;Malley </td></tr>
    798. 

  798. <tr class="a">
    799. 

  799. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-893">HADOOP-893</a> </td>
    800. 

  800. <td align="left"> dead datanode set should be maintained in the file handle or file system for hdfs </td>
    801. 

  801. <td align="left">  Major </td>
    802. 

  802. <td align="left"> . </td>
    803. 

  803. <td align="left"> Owen O&#x2019;Malley </td>
    804. 

  804. <td align="left"> Raghu Angadi </td></tr>
    805. 

  805. <tr class="b">
    806. 

  806. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-761">HADOOP-761</a> </td>
    807. 

  807. <td align="left"> Unit tests should cleanup created files in /tmp. It causes tests to fail if more than one users run tests on same machine. </td>
    808. 

  808. <td align="left">  Minor </td>
    809. 

  809. <td align="left"> test </td>
    810. 

  810. <td align="left"> Sanjay Dahiya </td>
    811. 

  811. <td align="left"> Nigel Daley </td></tr>
    812. 

  812. <tr class="a">
    813. 

  813. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1010">HADOOP-1010</a> </td>
    814. 

  814. <td align="left"> getReordReader methof of InputFormat class should handle null reporter argument </td>
    815. 

  815. <td align="left">  Major </td>
    816. 

  816. <td align="left"> . </td>
    817. 

  817. <td align="left"> Runping Qi </td>
    818. 

  818. <td align="left"> Runping Qi </td></tr>
    819. 

  819. <tr class="b">
    820. 

  820. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-923">HADOOP-923</a> </td>
    821. 

  821. <td align="left"> DFS Scalability: datanode heartbeat timeouts cause cascading timeouts of other datanodes </td>
    822. 

  822. <td align="left">  Major </td>
    823. 

  823. <td align="left"> . </td>
    824. 

  824. <td align="left"> dhruba borthakur </td>
    825. 

  825. <td align="left"> dhruba borthakur </td></tr>
    826. 

  826. <tr class="a">
    827. 

  827. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-476">HADOOP-476</a> </td>
    828. 

  828. <td align="left"> Streaming should check for correctness of the task </td>
    829. 

  829. <td align="left">  Major </td>
    830. 

  830. <td align="left"> . </td>
    831. 

  831. <td align="left"> arkady borkovsky </td>
    832. 

  832. <td align="left"> Arun C Murthy </td></tr>
    833. 

  833. <tr class="b">
    834. 

  834. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-973">HADOOP-973</a> </td>
    835. 

  835. <td align="left"> NPE in FSDataset during heavy Namenode load </td>
    836. 

  836. <td align="left">  Major </td>
    837. 

  837. <td align="left"> . </td>
    838. 

  838. <td align="left"> Nigel Daley </td>
    839. 

  839. <td align="left"> dhruba borthakur </td></tr>
    840. 

  840. <tr class="a">
    841. 

  841. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-649">HADOOP-649</a> </td>
    842. 

  842. <td align="left"> Jobs without any map and reduce operations seems to be lost after their execution </td>
    843. 

  843. <td align="left">  Major </td>
    844. 

  844. <td align="left"> . </td>
    845. 

  845. <td align="left"> Thomas Friol </td>
    846. 

  846. <td align="left"> Owen O&#x2019;Malley </td></tr>
    847. 

  847. <tr class="b">
    848. 

  848. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-803">HADOOP-803</a> </td>
    849. 

  849. <td align="left"> Reducing memory consumption on Namenode : Part 1 </td>
    850. 

  850. <td align="left">  Major </td>
    851. 

  851. <td align="left"> . </td>
    852. 

  852. <td align="left"> Raghu Angadi </td>
    853. 

  853. <td align="left"> Raghu Angadi </td></tr>
    854. 

  854. <tr class="a">
    855. 

  855. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1021">HADOOP-1021</a> </td>
    856. 

  856. <td align="left"> TestMiniMRLocalFS and TestMiniMRCaching broken on Windows </td>
    857. 

  857. <td align="left">  Major </td>
    858. 

  858. <td align="left"> test </td>
    859. 

  859. <td align="left"> Nigel Daley </td>
    860. 

  860. <td align="left">  </td></tr>
    861. 

  861. <tr class="b">
    862. 

  862. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-947">HADOOP-947</a> </td>
    863. 

  863. <td align="left"> isReplicationInProgress() is very heavyweight </td>
    864. 

  864. <td align="left">  Major </td>
    865. 

  865. <td align="left"> . </td>
    866. 

  866. <td align="left"> dhruba borthakur </td>
    867. 

  867. <td align="left"> dhruba borthakur </td></tr>
    868. 

  868. <tr class="a">
    869. 

  869. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-442">HADOOP-442</a> </td>
    870. 

  870. <td align="left"> slaves file should include an &#x2018;exclude&#x2019; section, to prevent &#x201c;bad&#x201d; datanodes and tasktrackers from disrupting  a cluster </td>
    871. 

  871. <td align="left">  Major </td>
    872. 

  872. <td align="left"> conf </td>
    873. 

  873. <td align="left"> Yoram Arnon </td>
    874. 

  874. <td align="left"> Wendy Chien </td></tr>
    875. 

  875. <tr class="b">
    876. 

  876. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-933">HADOOP-933</a> </td>
    877. 

  877. <td align="left"> Application defined InputSplits do not work </td>
    878. 

  878. <td align="left">  Major </td>
    879. 

  879. <td align="left"> . </td>
    880. 

  880. <td align="left"> Benjamin Reed </td>
    881. 

  881. <td align="left"> Owen O&#x2019;Malley </td></tr>
    882. 

  882. <tr class="a">
    883. 

  883. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1006">HADOOP-1006</a> </td>
    884. 

  884. <td align="left"> The &#x201c;-local&#x201d; option does work properly with test programs </td>
    885. 

  885. <td align="left">  Minor </td>
    886. 

  886. <td align="left"> test </td>
    887. 

  887. <td align="left"> Gautam Kowshik </td>
    888. 

  888. <td align="left"> Doug Cutting </td></tr>
    889. 

  889. <tr class="b">
    890. 

  890. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-990">HADOOP-990</a> </td>
    891. 

  891. <td align="left"> Datanode doesn&#x2019;t retry when write to one (full)drive fail </td>
    892. 

  892. <td align="left">  Major </td>
    893. 

  893. <td align="left"> . </td>
    894. 

  894. <td align="left"> Koji Noguchi </td>
    895. 

  895. <td align="left"> Raghu Angadi </td></tr>
    896. 

  896. <tr class="a">
    897. 

  897. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-564">HADOOP-564</a> </td>
    898. 

  898. <td align="left"> we should use <a class="externalLink" href="hdfs://">hdfs://</a> in all API URIs </td>
    899. 

  899. <td align="left">  Major </td>
    900. 

  900. <td align="left"> . </td>
    901. 

  901. <td align="left"> eric baldeschwieler </td>
    902. 

  902. <td align="left"> Wendy Chien </td></tr>
    903. 

  903. <tr class="b">
    904. 

  904. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-654">HADOOP-654</a> </td>
    905. 

  905. <td align="left"> jobs fail with some hardware/system failures on a small number of nodes </td>
    906. 

  906. <td align="left">  Minor </td>
    907. 

  907. <td align="left"> . </td>
    908. 

  908. <td align="left"> Yoram Arnon </td>
    909. 

  909. <td align="left"> Arun C Murthy </td></tr>
    910. 

  910. <tr class="a">
    911. 

  911. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1029">HADOOP-1029</a> </td>
    912. 

  912. <td align="left"> streaming doesn&#x2019;t work with multiple maps </td>
    913. 

  913. <td align="left">  Blocker </td>
    914. 

  914. <td align="left"> . </td>
    915. 

  915. <td align="left"> Arun C Murthy </td>
    916. 

  916. <td align="left"> Arun C Murthy </td></tr>
    917. 

  917. <tr class="b">
    918. 

  918. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1034">HADOOP-1034</a> </td>
    919. 

  919. <td align="left"> RuntimeException and Error not catched in DataNode.DataXceiver.run() </td>
    920. 

  920. <td align="left">  Major </td>
    921. 

  921. <td align="left"> . </td>
    922. 

  922. <td align="left"> Philippe Gassmann </td>
    923. 

  923. <td align="left">  </td></tr>
    924. 

  924. <tr class="a">
    925. 

  925. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-878">HADOOP-878</a> </td>
    926. 

  926. <td align="left"> reducer NONE does not work with multiple maps </td>
    927. 

  927. <td align="left">  Minor </td>
    928. 

  928. <td align="left"> . </td>
    929. 

  929. <td align="left"> Mahadev konar </td>
    930. 

  930. <td align="left"> Arun C Murthy </td></tr>
    931. 

  931. <tr class="b">
    932. 

  932. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1039">HADOOP-1039</a> </td>
    933. 

  933. <td align="left"> Reduce the time taken by TestCheckpoint </td>
    934. 

  934. <td align="left">  Major </td>
    935. 

  935. <td align="left"> . </td>
    936. 

  936. <td align="left"> dhruba borthakur </td>
    937. 

  937. <td align="left"> dhruba borthakur </td></tr>
    938. 

  938. <tr class="a">
    939. 

  939. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1027">HADOOP-1027</a> </td>
    940. 

  940. <td align="left"> Fix the RAM FileSystem/Merge problems (reported in HADOOP-1014) </td>
    941. 

  941. <td align="left">  Major </td>
    942. 

  942. <td align="left"> . </td>
    943. 

  943. <td align="left"> Devaraj Das </td>
    944. 

  944. <td align="left"> Devaraj Das </td></tr>
    945. 

  945. <tr class="b">
    946. 

  946. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1036">HADOOP-1036</a> </td>
    947. 

  947. <td align="left"> task gets lost during assignment </td>
    948. 

  948. <td align="left">  Critical </td>
    949. 

  949. <td align="left"> . </td>
    950. 

  950. <td align="left"> Owen O&#x2019;Malley </td>
    951. 

  951. <td align="left"> Arun C Murthy </td></tr>
    952. 

  952. <tr class="a">
    953. 

  953. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1044">HADOOP-1044</a> </td>
    954. 

  954. <td align="left"> TestDecommission fails because it attempts to transfer block to a dead datanode </td>
    955. 

  955. <td align="left">  Major </td>
    956. 

  956. <td align="left"> test </td>
    957. 

  957. <td align="left"> Wendy Chien </td>
    958. 

  958. <td align="left"> Wendy Chien </td></tr>
    959. 

  959. <tr class="b">
    960. 

  960. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-109">HADOOP-109</a> </td>
    961. 

  961. <td align="left"> Blocks are not replicated when&#x2026; </td>
    962. 

  962. <td align="left">  Major </td>
    963. 

  963. <td align="left"> . </td>
    964. 

  964. <td align="left"> Konstantin Shvachko </td>
    965. 

  965. <td align="left"> Konstantin Shvachko </td></tr>
    966. 

  966. <tr class="a">
    967. 

  967. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1020">HADOOP-1020</a> </td>
    968. 

  968. <td align="left"> Path class on Windows seems broken </td>
    969. 

  969. <td align="left">  Major </td>
    970. 

  970. <td align="left"> . </td>
    971. 

  971. <td align="left"> Nigel Daley </td>
    972. 

  972. <td align="left"> Doug Cutting </td></tr>
    973. 

  973. <tr class="b">
    974. 

  974. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1000">HADOOP-1000</a> </td>
    975. 

  975. <td align="left"> Loggers in the Task framework should not write the the Tasks stderr </td>
    976. 

  976. <td align="left">  Major </td>
    977. 

  977. <td align="left"> . </td>
    978. 

  978. <td align="left"> Owen O&#x2019;Malley </td>
    979. 

  979. <td align="left"> Arun C Murthy </td></tr>
    980. 

  980. <tr class="a">
    981. 

  981. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1037">HADOOP-1037</a> </td>
    982. 

  982. <td align="left"> bin/slaves.sh not compatible with /bin/dash </td>
    983. 

  983. <td align="left">  Major </td>
    984. 

  984. <td align="left"> . </td>
    985. 

  985. <td align="left"> Doug Cutting </td>
    986. 

  986. <td align="left">  </td></tr>
    987. 

  987. <tr class="b">
    988. 

  988. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1046">HADOOP-1046</a> </td>
    989. 

  989. <td align="left"> Datanode should periodically clean up /tmp from partially received (and not completed) block files </td>
    990. 

  990. <td align="left">  Major </td>
    991. 

  991. <td align="left"> . </td>
    992. 

  992. <td align="left"> Andrzej Bialecki </td>
    993. 

  993. <td align="left"> Andrzej Bialecki </td></tr>
    994. 

  994. <tr class="a">
    995. 

  995. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1049">HADOOP-1049</a> </td>
    996. 

  996. <td align="left"> race condition in setting up ipc connections </td>
    997. 

  997. <td align="left">  Major </td>
    998. 

  998. <td align="left"> ipc </td>
    999. 

  999. <td align="left"> Owen O&#x2019;Malley </td>
    1000. 

  1000. <td align="left"> Devaraj Das </td></tr>
    1001. 

  1001. <tr class="b">
    1002. 

  1002. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1056">HADOOP-1056</a> </td>
    1003. 

  1003. <td align="left"> Decommission only recognizes IP addesses in hosts and exclude files on refresh. </td>
    1004. 

  1004. <td align="left">  Major </td>
    1005. 

  1005. <td align="left"> . </td>
    1006. 

  1006. <td align="left"> Wendy Chien </td>
    1007. 

  1007. <td align="left"> Wendy Chien </td></tr>
    1008. 

  1008. <tr class="a">
    1009. 

  1009. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-994">HADOOP-994</a> </td>
    1010. 

  1010. <td align="left"> DFS Scalability : a BlockReport that returns large number of blocks-to-be-deleted cause datanode to lost connectivity to namenode </td>
    1011. 

  1011. <td align="left">  Major </td>
    1012. 

  1012. <td align="left"> . </td>
    1013. 

  1013. <td align="left"> dhruba borthakur </td>
    1014. 

  1014. <td align="left"> dhruba borthakur </td></tr>
    1015. 

  1015. <tr class="b">
    1016. 

  1016. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-338">HADOOP-338</a> </td>
    1017. 

  1017. <td align="left"> the number of maps in the JobConf does not match reality </td>
    1018. 

  1018. <td align="left">  Major </td>
    1019. 

  1019. <td align="left"> . </td>
    1020. 

  1020. <td align="left"> Owen O&#x2019;Malley </td>
    1021. 

  1021. <td align="left"> Owen O&#x2019;Malley </td></tr>
    1022. 

  1022. </tbody>
    1023. 

  1023. </table></section><section>
    1024. 

  1024. <h3><a name="TESTS:"></a>TESTS:</h3>
    1025. 

  1025. <table border="0" class="bodyTable">
    1026. 

  1026. <thead>
    1027. 

  1027. 

  1028. <tr class="a">
    1029. 

  1029. <th align="left"> JIRA </th>
    1030. 

  1030. <th align="left"> Summary </th>
    1031. 

  1031. <th align="left"> Priority </th>
    1032. 

  1032. <th align="left"> Component </th>
    1033. 

  1033. <th align="left"> Reporter </th>
    1034. 

  1034. <th align="left"> Contributor </th></tr>
    1035. 

  1035. </thead><tbody>
    1036. 

  1036. 

  1037. <tr class="b">
    1038. 

  1038. <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1051">HADOOP-1051</a> </td>
    1039. 

  1039. <td align="left"> Add checkstyle target to ant build file </td>
    1040. 

  1040. <td align="left">  Major </td>
    1041. 

  1041. <td align="left"> build, test </td>
    1042. 

  1042. <td align="left"> Tom White </td>
    1043. 

  1043. <td align="left"> Tom White </td></tr>
    1044. 

  1044. </tbody>
    1045. 

  1045. </table></section></section>
    1046. 

  1046.       </div>
    1047. 

  1047.     </div>
    1048. 

  1048.     <div class="clear">
    1049. 

  1049.       <hr/>
    1050. 

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    1051. 

  1051.     <div id="footer">
    1052. 

  1052.       <div class="xright">
    1053. 

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    1054. 

  1054.               Apache Software Foundation
    1055. 

  1055.             
    1056. 

  1056.                           - <a href="http://maven.apache.org/privacy-policy.html">Privacy Policy</a>.
    1057. 

  1057.         Apache Maven, Maven, Apache, the Apache feather logo, and the Apache Maven project logos are trademarks of The Apache Software Foundation.
    1058. 

  1058.       </div>
    1059. 

  1059.       <div class="clear">
    1060. 

  1060.         <hr/>
    1061. 

  1061.       </div>
    1062. 

  1062.     </div>
    1063. 

  1063.   </body>
    1064. 

  1064. </html>
    1065.