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dds_umn

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Reviewed-by: Székely, Ond <ond.szekely@t-systems.com>
Co-authored-by: Ru, Li Yi <liyiru7@huawei.com>
Co-committed-by: Ru, Li Yi <liyiru7@huawei.com>
This commit is contained in:
Ru, Li Yi 2024-09-24 14:54:24 +00:00 committed by zuul
parent 9b5528e1dc
commit 8322f976ef
10 changed files with 16 additions and 23 deletions
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docs/dds/umn/ALL_META.TXT.json
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"node_id":"dds_01_0014.xml",
"product_code":"dds",
"code":"15",
"des":"DDS supports versions 3.2, 3.4, 4.0, 4.2, and 4.4, and you need to use a driver compatible with MongoDB 3.0 or later to access DDS. You can select the DB engine and versi",
"des":"DDS supports versions 3.4, 4.0, 4.2, and 4.4, and you need to use a driver compatible with MongoDB 3.0 or later to access DDS. You can select the DB engine and version yo",
"doc_type":"usermanual",
"kw":"Database Engine and Version,DDS DB Instance,User Guide",
"search_title":"",

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docs/dds/umn/CLASS.TXT.json
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"code":"14"
},
{
"desc":"DDS supports versions 3.2, 3.4, 4.0, 4.2, and 4.4, and you need to use a driver compatible with MongoDB 3.0 or later to access DDS. You can select the DB engine and versi",
"desc":"DDS supports versions 3.4, 4.0, 4.2, and 4.4, and you need to use a driver compatible with MongoDB 3.0 or later to access DDS. You can select the DB engine and version yo",
"product_code":"dds",
"title":"Database Engine and Version",
"uri":"dds_01_0014.html",

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docs/dds/umn/dds_01_0014.html
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<a name="dds_01_0014"></a><a name="dds_01_0014"></a>
<h1 class="topictitle1">Database Engine and Version</h1>
<div id="body51595365"><p id="dds_01_0014__p1104614194219">DDS supports versions 3.2, 3.4, 4.0, 4.2, and 4.4, and you need to use a driver compatible with MongoDB 3.0 or later to access DDS. You can select the DB engine and version you need based on your service requirements.</p>
<div id="body51595365"><p id="dds_01_0014__p1104614194219">DDS supports versions 3.4, 4.0, 4.2, and 4.4, and you need to use a driver compatible with MongoDB 3.0 or later to access DDS. You can select the DB engine and version you need based on your service requirements.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dds_01_0014__table1023535171419" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Supported DB engines and versions</caption><thead align="left"><tr id="dds_01_0014__row32362518143"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.4.1.1"><p id="dds_01_0014__p32363541412">Compatibility</p>
</th>
@ -39,13 +39,6 @@
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="dds_01_0014__p10275410124511">WiredTiger</p>
</td>
</tr>
<tr id="dds_01_0014__row68645721111"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="dds_01_0014__p138651716113">3.2</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><ul id="dds_01_0014__ul20327101871117"><li id="dds_01_0014__li332781810112">Cluster</li><li id="dds_01_0014__li23271118181110">Replica set</li><li id="dds_01_0014__li989812521612">Single</li></ul>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="dds_01_0014__p1086587151116">WiredTiger</p>
</td>
</tr>
</tbody>
</table>
</div>

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docs/dds/umn/dds_02_0012.html
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</tr>
<tr id="dds_02_0012__row1024495916243"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0012__ul5930101454918"><li id="dds_02_0012__li182621429184410">4.4</li><li id="dds_02_0012__li19412134617810">4.2</li><li id="dds_02_0012__li12282171919">4.0</li><li id="dds_02_0012__li557634017166">3.4</li><li id="dds_02_0012__li0930171454919">3.2</li></ul>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0012__ul5930101454918"><li id="dds_02_0012__li182621429184410">4.4</li><li id="dds_02_0012__li19412134617810">4.2</li><li id="dds_02_0012__li12282171919">4.0</li><li id="dds_02_0012__li557634017166">3.4</li></ul>
</td>
</tr>
<tr id="dds_02_0012__row17502122118245"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p101132286218">Storage Type</p>
@ -49,7 +49,7 @@
</tr>
<tr id="dds_02_0012__row319181316237"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0012__ul109418294235"><li id="dds_02_0012__li8942142922318">WiredTiger<p id="dds_02_0012__p11175126192414"><a name="dds_02_0012__li8942142922318"></a><a name="li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.2, 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0012__ul109418294235"><li id="dds_02_0012__li8942142922318">WiredTiger<p id="dds_02_0012__p11175126192414"><a name="dds_02_0012__li8942142922318"></a><a name="li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
</li><li id="dds_02_0012__li19723447162416">RocksDB<p id="dds_02_0012__p3871944172517"><a name="dds_02_0012__li19723447162416"></a><a name="li19723447162416"></a>RocksDB is the default storage engine of DDS 4.2 and 4.4. RocksDB supports efficient point lookup, range scan, and high-speed write. RocksDB can be used as the underlying data storage engine of DDS and is suitable for scenarios with a large number of write operations.</p>
</li></ul>
</td>

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docs/dds/umn/dds_02_0016.html
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</tr>
<tr id="dds_02_0016__en-us_topic_0044018333_row1024495916243"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0016__en-us_topic_0044018333_p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0016__en-us_topic_0044018333_ul5930101454918"><li id="dds_02_0016__en-us_topic_0044018333_li423032584214">4.4</li><li id="dds_02_0016__en-us_topic_0044018333_li20191144116712">4.2</li><li id="dds_02_0016__en-us_topic_0044018333_li12282171919">4.0</li><li id="dds_02_0016__en-us_topic_0044018333_li557634017166">3.4</li><li id="dds_02_0016__en-us_topic_0044018333_li0930171454919">3.2</li></ul>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0016__en-us_topic_0044018333_ul5930101454918"><li id="dds_02_0016__en-us_topic_0044018333_li423032584214">4.4</li><li id="dds_02_0016__en-us_topic_0044018333_li20191144116712">4.2</li><li id="dds_02_0016__en-us_topic_0044018333_li12282171919">4.0</li><li id="dds_02_0016__en-us_topic_0044018333_li557634017166">3.4</li></ul>
</td>
</tr>
<tr id="dds_02_0016__en-us_topic_0044018333_row11127281528"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0016__en-us_topic_0044018333_p101132286218">Storage Type</p>
@ -49,7 +49,7 @@
</tr>
<tr id="dds_02_0016__en-us_topic_0044018333_row319181316237"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0016__en-us_topic_0044018333_p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0016__en-us_topic_0044018333_ul109418294235"><li id="dds_02_0016__en-us_topic_0044018333_li8942142922318">WiredTiger<p id="dds_02_0016__en-us_topic_0044018333_p11175126192414"><a name="dds_02_0016__en-us_topic_0044018333_li8942142922318"></a><a name="en-us_topic_0044018333_li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.2, 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0016__en-us_topic_0044018333_ul109418294235"><li id="dds_02_0016__en-us_topic_0044018333_li8942142922318">WiredTiger<p id="dds_02_0016__en-us_topic_0044018333_p11175126192414"><a name="dds_02_0016__en-us_topic_0044018333_li8942142922318"></a><a name="en-us_topic_0044018333_li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
</li><li id="dds_02_0016__en-us_topic_0044018333_li19723447162416">RocksDB<p id="dds_02_0016__en-us_topic_0044018333_p3871944172517"><a name="dds_02_0016__en-us_topic_0044018333_li19723447162416"></a><a name="en-us_topic_0044018333_li19723447162416"></a>RocksDB is the default storage engine of DDS 4.2 and 4.4. RocksDB supports efficient point lookup, range scan, and high-speed write. RocksDB can be used as the underlying data storage engine of DDS and is suitable for scenarios with a large number of write operations.</p>
</li></ul>
</td>

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docs/dds/umn/dds_02_0023.html
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</tr>
<tr id="dds_02_0023__row1024495916243"><td class="cellrowborder" valign="top" width="21.05%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0023__p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0023__ul5930101454918"><li id="dds_02_0023__li276595264410">4.4</li><li id="dds_02_0023__li1643551918913">4.2</li><li id="dds_02_0023__li12282171919">4.0</li><li id="dds_02_0023__li557634017166">3.4</li><li id="dds_02_0023__li0930171454919">3.2</li></ul>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0023__ul5930101454918"><li id="dds_02_0023__li276595264410">4.4</li><li id="dds_02_0023__li1643551918913">4.2</li><li id="dds_02_0023__li12282171919">4.0</li><li id="dds_02_0023__li557634017166">3.4</li></ul>
</td>
</tr>
<tr id="dds_02_0023__row329012273519"><td class="cellrowborder" valign="top" width="21.05%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0023__p101132286218">Storage Type</p>
@ -49,7 +49,7 @@
</tr>
<tr id="dds_02_0023__row319181316237"><td class="cellrowborder" valign="top" width="21.05%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0023__p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0023__ul109418294235"><li id="dds_02_0023__li8942142922318">WiredTiger<p id="dds_02_0023__p11175126192414"><a name="dds_02_0023__li8942142922318"></a><a name="li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.2, 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0023__ul109418294235"><li id="dds_02_0023__li8942142922318">WiredTiger<p id="dds_02_0023__p11175126192414"><a name="dds_02_0023__li8942142922318"></a><a name="li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
</li><li id="dds_02_0023__li19723447162416">RocksDB<p id="dds_02_0023__p3871944172517"><a name="dds_02_0023__li19723447162416"></a><a name="li19723447162416"></a>RocksDB is the default storage engine of DDS 4.2 and 4.4. RocksDB supports efficient point lookup, range scan, and high-speed write. RocksDB can be used as the underlying data storage engine of DDS and is suitable for scenarios with a large number of write operations.</p>
</li></ul>
</td>

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docs/dds/umn/dds_02_0052.html
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</tr>
<tr id="dds_02_0052__dds_02_0012_row1024495916243"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0052__dds_02_0012_p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0052__dds_02_0012_ul5930101454918"><li id="dds_02_0052__dds_02_0012_li182621429184410">4.4</li><li id="dds_02_0052__dds_02_0012_li19412134617810">4.2</li><li id="dds_02_0052__dds_02_0012_li12282171919">4.0</li><li id="dds_02_0052__dds_02_0012_li557634017166">3.4</li><li id="dds_02_0052__dds_02_0012_li0930171454919">3.2</li></ul>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0052__dds_02_0012_ul5930101454918"><li id="dds_02_0052__dds_02_0012_li182621429184410">4.4</li><li id="dds_02_0052__dds_02_0012_li19412134617810">4.2</li><li id="dds_02_0052__dds_02_0012_li12282171919">4.0</li><li id="dds_02_0052__dds_02_0012_li557634017166">3.4</li></ul>
</td>
</tr>
<tr id="dds_02_0052__dds_02_0012_row17502122118245"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0052__dds_02_0012_p101132286218">Storage Type</p>
@ -49,7 +49,7 @@
</tr>
<tr id="dds_02_0052__dds_02_0012_row319181316237"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0052__dds_02_0012_p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0052__dds_02_0012_ul109418294235"><li id="dds_02_0052__dds_02_0012_li8942142922318">WiredTiger<p id="dds_02_0052__dds_02_0012_p11175126192414"><a name="dds_02_0052__dds_02_0012_li8942142922318"></a><a name="dds_02_0012_li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.2, 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0052__dds_02_0012_ul109418294235"><li id="dds_02_0052__dds_02_0012_li8942142922318">WiredTiger<p id="dds_02_0052__dds_02_0012_p11175126192414"><a name="dds_02_0052__dds_02_0012_li8942142922318"></a><a name="dds_02_0012_li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
</li><li id="dds_02_0052__dds_02_0012_li19723447162416">RocksDB<p id="dds_02_0052__dds_02_0012_p3871944172517"><a name="dds_02_0052__dds_02_0012_li19723447162416"></a><a name="dds_02_0012_li19723447162416"></a>RocksDB is the default storage engine of DDS 4.2 and 4.4. RocksDB supports efficient point lookup, range scan, and high-speed write. RocksDB can be used as the underlying data storage engine of DDS and is suitable for scenarios with a large number of write operations.</p>
</li></ul>
</td>

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</tr>
<tr id="dds_02_0079__dds_02_0023_row1024495916243"><td class="cellrowborder" valign="top" width="21.05%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0079__dds_02_0023_p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0079__dds_02_0023_ul5930101454918"><li id="dds_02_0079__dds_02_0023_li276595264410">4.4</li><li id="dds_02_0079__dds_02_0023_li1643551918913">4.2</li><li id="dds_02_0079__dds_02_0023_li12282171919">4.0</li><li id="dds_02_0079__dds_02_0023_li557634017166">3.4</li><li id="dds_02_0079__dds_02_0023_li0930171454919">3.2</li></ul>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0079__dds_02_0023_ul5930101454918"><li id="dds_02_0079__dds_02_0023_li276595264410">4.4</li><li id="dds_02_0079__dds_02_0023_li1643551918913">4.2</li><li id="dds_02_0079__dds_02_0023_li12282171919">4.0</li><li id="dds_02_0079__dds_02_0023_li557634017166">3.4</li></ul>
</td>
</tr>
<tr id="dds_02_0079__dds_02_0023_row329012273519"><td class="cellrowborder" valign="top" width="21.05%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0079__dds_02_0023_p101132286218">Storage Type</p>
@ -49,7 +49,7 @@
</tr>
<tr id="dds_02_0079__dds_02_0023_row319181316237"><td class="cellrowborder" valign="top" width="21.05%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0079__dds_02_0023_p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0079__dds_02_0023_ul109418294235"><li id="dds_02_0079__dds_02_0023_li8942142922318">WiredTiger<p id="dds_02_0079__dds_02_0023_p11175126192414"><a name="dds_02_0079__dds_02_0023_li8942142922318"></a><a name="dds_02_0023_li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.2, 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
<td class="cellrowborder" valign="top" width="78.95%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0079__dds_02_0023_ul109418294235"><li id="dds_02_0079__dds_02_0023_li8942142922318">WiredTiger<p id="dds_02_0079__dds_02_0023_p11175126192414"><a name="dds_02_0079__dds_02_0023_li8942142922318"></a><a name="dds_02_0023_li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
</li><li id="dds_02_0079__dds_02_0023_li19723447162416">RocksDB<p id="dds_02_0079__dds_02_0023_p3871944172517"><a name="dds_02_0079__dds_02_0023_li19723447162416"></a><a name="dds_02_0023_li19723447162416"></a>RocksDB is the default storage engine of DDS 4.2 and 4.4. RocksDB supports efficient point lookup, range scan, and high-speed write. RocksDB can be used as the underlying data storage engine of DDS and is suitable for scenarios with a large number of write operations.</p>
</li></ul>
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<p id="dds_02_0100__p8060118">This section describes how to obtain the IP addresses of the shard and config nodes.</p>
</div>
<div class="section" id="dds_02_0100__section12401231171410"><h4 class="sectiontitle">Before You Start</h4>
<ul id="dds_02_0100__ul4988173651419"><li id="dds_02_0100__li1998863631415">DDS supports cluster instances of Community Edition 3.2, 3.4, 4.0, 4.2, and 4.4.</li><li id="dds_02_0100__li1592812169159">DDS creates two connection addresses for the primary node and secondary node in a shard respectively.</li><li id="dds_02_0100__li185401621134812">Once the connection addresses are assigned to your nodes, they cannot be modified or deleted.</li><li id="dds_02_0100__li2029351134917">The connection address is accessible from private networks only.</li></ul>
<ul id="dds_02_0100__ul4988173651419"><li id="dds_02_0100__li1998863631415">DDS supports cluster instances of Community Edition 3.4, 4.0, 4.2, and 4.4.</li><li id="dds_02_0100__li1592812169159">DDS creates two connection addresses for the primary node and secondary node in a shard respectively.</li><li id="dds_02_0100__li185401621134812">Once the connection addresses are assigned to your nodes, they cannot be modified or deleted.</li><li id="dds_02_0100__li2029351134917">The connection address is accessible from private networks only.</li></ul>
</div>
<div class="section" id="dds_02_0100__section1748562461319"><h4 class="sectiontitle">Enabling shard IP Address</h4><ol id="dds_02_0100__ol1398481335019"><li id="dds_02_0100__li312682313217"><span><a href="dds_02_0043.html">Log in to the DDS console.</a></span></li><li id="dds_02_0100__li131998252507"><span>In the left navigation pane, choose <strong id="dds_02_0100__b861910318543">Instance Management</strong>. In the DB instance list, click the target cluster instance to go to the <strong id="dds_02_0100__b125916259573">Basic Information</strong> page.</span><p><p id="dds_02_0100__p8381616162115">Alternatively, on the <strong id="dds_02_0100__b1143415103214">Basic Information</strong> page, in the navigation pane on the left, click <strong id="dds_02_0100__b1143441019216">Connections</strong>.</p>
</p></li><li id="dds_02_0100__li43511328145214"><span>In the <strong id="dds_02_0100__b1229016301215">Node Information</strong> area, click the <strong id="dds_02_0100__b8501189584">shard</strong> tab.</span></li><li id="dds_02_0100__li49993266574"><span>Click <strong id="dds_02_0100__b595113381837">Show shard IP Address</strong>. In the displayed dialog box, enter and confirm the password for connecting to the node.</span><p><div class="note" id="dds_02_0100__note208751820518"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="dds_02_0100__ul12635132165"><li id="dds_02_0100__li069911215337">After the shard IP address is enabled, you need to restart the corresponding shard nodes for the configuration to take effect.</li><li id="dds_02_0100__li1635135162">The shard IP address cannot be modified or disabled after being enabled, and the password cannot be modified.</li><li id="dds_02_0100__li18623131513167">After the shard IP address is enabled and new shard nodes are added, you need to manually locate the newly added shard node and choose <strong id="dds_02_0100__b15262232682">More</strong> &gt; <strong id="dds_02_0100__b1740319356814">Show shard IP Address</strong> in the <strong id="dds_02_0100__b20216638885">Operation</strong> column to show the shard IP address.</li><li id="dds_02_0100__li94923381716">After the shard IP address is enabled, all shard nodes in the current instance apply for connection addresses.</li></ul>

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</tr>
<tr id="en-us_topic_0044018333__row1024495916243"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="en-us_topic_0044018333__p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="en-us_topic_0044018333__ul5930101454918"><li id="en-us_topic_0044018333__li423032584214">4.4</li><li id="en-us_topic_0044018333__li20191144116712">4.2</li><li id="en-us_topic_0044018333__li12282171919">4.0</li><li id="en-us_topic_0044018333__li557634017166">3.4</li><li id="en-us_topic_0044018333__li0930171454919">3.2</li></ul>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="en-us_topic_0044018333__ul5930101454918"><li id="en-us_topic_0044018333__li423032584214">4.4</li><li id="en-us_topic_0044018333__li20191144116712">4.2</li><li id="en-us_topic_0044018333__li12282171919">4.0</li><li id="en-us_topic_0044018333__li557634017166">3.4</li></ul>
</td>
</tr>
<tr id="en-us_topic_0044018333__row11127281528"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="en-us_topic_0044018333__p101132286218">Storage Type</p>
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</tr>
<tr id="en-us_topic_0044018333__row319181316237"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="en-us_topic_0044018333__p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="en-us_topic_0044018333__ul109418294235"><li id="en-us_topic_0044018333__li8942142922318">WiredTiger<p id="en-us_topic_0044018333__p11175126192414"><a name="en-us_topic_0044018333__li8942142922318"></a><a name="li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.2, 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="en-us_topic_0044018333__ul109418294235"><li id="en-us_topic_0044018333__li8942142922318">WiredTiger<p id="en-us_topic_0044018333__p11175126192414"><a name="en-us_topic_0044018333__li8942142922318"></a><a name="li8942142922318"></a>WiredTiger is the default storage engine of DDS 3.4 and 4.0. WiredTiger provides different granularity concurrency control and compression mechanism for data management. It can provide the best performance and storage efficiency for different kinds of applications.</p>
</li><li id="en-us_topic_0044018333__li19723447162416">RocksDB<p id="en-us_topic_0044018333__p3871944172517"><a name="en-us_topic_0044018333__li19723447162416"></a><a name="li19723447162416"></a>RocksDB is the default storage engine of DDS 4.2 and 4.4. RocksDB supports efficient point lookup, range scan, and high-speed write. RocksDB can be used as the underlying data storage engine of DDS and is suitable for scenarios with a large number of write operations.</p>
</li></ul>
</td>