forked from docs/doc-exports
Yang, Tong
6182f91ba8
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
48 lines
4.1 KiB
HTML
48 lines
4.1 KiB
HTML
<a name="mrs_01_1572"></a><a name="mrs_01_1572"></a>
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<h1 class="topictitle1">File Systems</h1>
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<div id="body1596163871741"><div class="section" id="mrs_01_1572__s08a40ce2f86c4a618aa669d45151b05b"><h4 class="sectiontitle">Scenario</h4><p id="mrs_01_1572__af8f20ed919534b6092f65d676d6ae133">Result files are created when tasks are running. Flink enables you to configure parameters for file creation.</p>
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</div>
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<div class="section" id="mrs_01_1572__s45a89a553e02416dacd0eccb5ab0d727"><h4 class="sectiontitle">Configuration Description</h4><p id="mrs_01_1572__acab7c2254de5476f8bb7bf75f548b025">Configuration items include overwriting policy and directory creation.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="mrs_01_1572__t2421691045fb48748bb431f23768c0d2" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameter description</caption><thead align="left"><tr id="mrs_01_1572__rda19ecc3329249cd901f46ab41a4b8e5"><th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.2.3.2.5.1.1"><p id="mrs_01_1572__a672695f4804044d296c39e3b5818674d">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="47.760000000000005%" id="mcps1.3.2.3.2.5.1.2"><p id="mrs_01_1572__a21efd0523673429e9179bec0a9cb1ada">Description</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="13.34%" id="mcps1.3.2.3.2.5.1.3"><p id="mrs_01_1572__a2f25f0a6920a4abcb2f58839162b97a3">Default Value</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="13.900000000000002%" id="mcps1.3.2.3.2.5.1.4"><p id="mrs_01_1572__adc48de2dc5024f549eb32974e95a294a">Mandatory</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="mrs_01_1572__r79706159ef57403fa676420108b6eaf7"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.3.2.5.1.1 "><p id="mrs_01_1572__afa5c8d6e32db47c79871c29b8543c413">fs.overwrite-files</p>
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</td>
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<td class="cellrowborder" valign="top" width="47.760000000000005%" headers="mcps1.3.2.3.2.5.1.2 "><p id="mrs_01_1572__af98bf142cbde4b7e98df66b9d1adf716">Whether to overwrite the existing file by default when the file is written.</p>
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</td>
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<td class="cellrowborder" valign="top" width="13.34%" headers="mcps1.3.2.3.2.5.1.3 "><p id="mrs_01_1572__ad8751b2023a64102aeb9f5bd665940b6">false</p>
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</td>
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<td class="cellrowborder" valign="top" width="13.900000000000002%" headers="mcps1.3.2.3.2.5.1.4 "><p id="mrs_01_1572__a1cf0c784e6b64babadb880f51272a923">No</p>
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</td>
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</tr>
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<tr id="mrs_01_1572__r2bdd4c990f9e44fe9f5619db782ec68f"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.3.2.5.1.1 "><p id="mrs_01_1572__a7f7004b651654244ac11f97ab1b7fb9c">fs.output.always-create-directory</p>
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</td>
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<td class="cellrowborder" valign="top" width="47.760000000000005%" headers="mcps1.3.2.3.2.5.1.2 "><p id="mrs_01_1572__a659ae68c61254beea36f9414c8f06e7a">When the degree of parallelism (DOP) of file writing programs is greater than 1, a directory is created under the output file path and different result files (one for each parallel writing program) are stored in the directory.</p>
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<ul id="mrs_01_1572__u281a3797b9d34cc291f7230f6af173f3"><li id="mrs_01_1572__l5bd876999b37479788680e8581fc078f">If this parameter is set to <strong id="mrs_01_1572__b212252519175">true</strong>, a directory is created for the writing program whose DOP is 1 and a result file is stored in the directory.</li><li id="mrs_01_1572__l593cfc0247d749d1b86f8c5b1122f8c6">If this parameter is set to <strong id="mrs_01_1572__b127455363179">false</strong>, the file of the writing program whose DOP is 1 is created directly in the output path and no directory is created.</li></ul>
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</td>
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<td class="cellrowborder" valign="top" width="13.34%" headers="mcps1.3.2.3.2.5.1.3 "><p id="mrs_01_1572__a449ca6909dd845f6a297bbd2339561d5">false</p>
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</td>
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<td class="cellrowborder" valign="top" width="13.900000000000002%" headers="mcps1.3.2.3.2.5.1.4 "><p id="mrs_01_1572__ac8625937f2df4fb591f7b20ad381bed1">No</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_0592.html">Flink Configuration Management</a></div>
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</div>
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</div>
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