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doc-exports/docs/dcs/umn/dcs-ug-0326026.html
Chen, Junjie 3de6842994 DCS UMN 20240521 version 
Reviewed-by: Mützel, Andrea <andrea.muetzel@t-systems.com>
Co-authored-by: Chen, Junjie <chenjunjie@huawei.com>
Co-committed-by: Chen, Junjie <chenjunjie@huawei.com>
2024-07-05 08:59:46 +00:00

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<a name="dcs-ug-0326026"></a><a name="dcs-ug-0326026"></a>
<h1 class="topictitle1">Change History</h1>
<div id="body1585185912660">
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dcs-ug-0326026__table1796193574412" frame="border" border="1" rules="all"><thead align="left"><tr id="dcs-ug-0326026__row1796335144412"><th align="left" class="cellrowborder" valign="top" width="18.029999999999998%" id="mcps1.3.1.1.3.1.1"><p id="dcs-ug-0326026__p102817016454">Released On</p>
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<th align="left" class="cellrowborder" valign="top" width="81.97%" id="mcps1.3.1.1.3.1.2"><p id="dcs-ug-0326026__p13284130114515">What's New</p>
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</thead>
<tbody><tr id="dcs-ug-0326026__row1622275718574"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1922211579572">2024-05-10</p>
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<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p9222125710574">Updated <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a> and <a href="dcs-ug-0326011.html">Modifying DCS Instance Specifications</a>. Shard size can be customized for Redis Cluster instances.</p>
</td>
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<tr id="dcs-ug-0326026__row12711543185917"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1271211435591">2024-02-17</p>
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<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p2712743125920">Updated <a href="dcs-ug-0312019.html">Exporting DCS Instance List</a> and <a href="dcs-faq-0730008.html">How Do I Access a DCS Redis Instance Through Redis Desktop Manager?</a>.</p>
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<tr id="dcs-ug-0326026__row2961819111"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p496171920116">2023-09-25</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p79611915112">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul9904652181719"><li id="dcs-ug-0326026__li79047522178">Added description about Redis Cluster instances in section <a href="dcs-pd-0916004.html">Redis 6.0 Instance Specifications</a>.</li><li id="dcs-ug-0326026__li69041152181718">Added note about connecting to Redis with SSL enabled in section <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a>.</li><li id="dcs-ug-0326026__li3904165251711">Added <a href="dcs-ug-210330002.html">Scanning Expired Keys</a> and <a href="TagManagement.html">Managing Tags</a>.</li><li id="dcs-ug-0326026__li4827174181212">Added description about parameter <strong id="dcs-ug-0326026__b168645396114">active-expire-num</strong> in section <a href="dcs-ug-0312024.html">Modifying Configuration Parameters</a>.</li><li id="dcs-ug-0326026__li6181915794">Added <a href="dcs-faq-210531002.html">How Does DCS Delete Expired Keys?</a> and <a href="dcs-faq-210812001.html">How Long Are Keys Stored? How Do I Set Key Expiration?</a></li></ul>
</td>
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<tr id="dcs-ug-0326026__row7581191913310"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p14582719203315">August 17, 2023</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p758221963310">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul1267915244019"><li id="dcs-ug-0326026__li767916213406">Added section <a href="dcs-migration-230313.html">Data Migration Guide</a> and added data migration FAQs in section <a href="dcs-faq-0326024.html">Data Backup, Export, and Migration</a>.</li><li id="dcs-ug-0326026__li1168042164013">Updated <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a> and <a href="dcs-ug-0512002.html">Access in Different Languages</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row9552163994111"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p45531339184110">August 7, 2023</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p10553113944111">Modified the following content:</p>
<p id="dcs-ug-0326026__p1367245312415">Updated <a href="CacheMasterSlave.html">Master/Standby Redis</a>, <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a>, and <a href="dcs-ug-0312016.html">Viewing Details of a DCS Instance</a>.</p>
<p id="dcs-ug-0326026__p5819182264412">Added <a href="dcs-faq-211230001.html">Connection Pool Selection and Recommended Jedis Parameter Settings</a>, <a href="dcs-faq-022025.html">Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance?</a>, and <a href="dcs-faq-221222.html">Is the Read-only Address of a Master/Standby Instance Connected to the Master or Standby Node?</a>.</p>
</td>
</tr>
<tr id="dcs-ug-0326026__row53168546416"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p13163541346">April 17, 2023</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p73164548420">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul135441527161913"><li id="dcs-ug-0326026__li1954519273197">Updated descriptions in sections <a href="dcs-pd-190826001.html">Web CLI Commands</a>, <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>, <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a>, <a href="dcs-ug-0312016.html">Viewing Details of a DCS Instance</a>, <a href="dcs-ug-190926001.html">Viewing Redis Slow Queries</a>, and <a href="dcs-ug-190808001.html">Analyzing Big Keys and Hot Keys</a>.</li><li id="dcs-ug-0326026__li1154542781919">Added <a href="dcs-ug-210622001.html">Parameter Templates</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row666351211261"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1466341292610">January 31, 2023</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p1229611306269">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul8153545172512"><li id="dcs-ug-0326026__li610193432610">Added description about Redis 6.0, such as <a href="dcs-pd-0916004.html">Redis 6.0 Instance Specifications</a>.</li><li id="dcs-ug-0326026__li106261024192611">Added <a href="dcs-ug-023129.html">Configuring SSL</a>.</li></ul>
</td>
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<tr id="dcs-ug-0326026__row58851348142415"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p186401050202411">October 19, 2022</p>
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<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p067261510263">Added the following FAQs:</p>
<p id="dcs-ug-0326026__p14673315122618"><a href="dcs-faq-210409001.html">Why Does a Key Disappear in Redis?</a></p>
<p id="dcs-ug-0326026__p16736151268"><a href="dcs-faq-0220330.html">Will Cached Data Be Retained After an Instance Is Restarted?</a></p>
<p id="dcs-ug-0326026__p9673151514267"><a href="dcs-faq-0427070.html">How Do I View Current Concurrent Connections and Maximum Connections of a DCS Redis Instance?</a></p>
<p id="dcs-ug-0326026__p36731215152615"><a href="dcs-faq-0603001.html">Why Is the Rejected Connections Metric Displayed?</a></p>
<p id="dcs-ug-0326026__p567321518263"><a href="dcs-faq-0220721.html">Why Is Flow Control Triggered? How Do I Handle It?</a></p>
<p id="dcs-ug-0326026__p56735157265"><a href="dcs-faq-0805001.html">Big/Hot Key Analysis and Expired Key Scan</a></p>
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</tr>
<tr id="dcs-ug-0326026__row10576123823417"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p13577143843413">August 29, 2022</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p4577638153419">Modified the following content:</p>
<p id="dcs-ug-0326026__p11419195411348">Added description about security groups and whitelist configuration in sections <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>, <a href="en-us_topic_0090662012.html">Security Group Configurations</a>, <a href="dcs-faq-0730006.html">What Should I Do If an Error Is Returned When I Use the Jedis Connection Pool?</a>, <a href="dcs-faq-0730010.html">How Do I Troubleshoot Redis Connection Failures?</a>, and <a href="dcs-faq-0730014.html">Why Aren't Security Groups Configured for DCS Redis 4.0/5.0/6.0 Instances?</a></p>
</td>
</tr>
<tr id="dcs-ug-0326026__row18728135361412"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1372912534149">August 9, 2022</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p3729753151419">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul191261229142913"><li id="dcs-ug-0326026__li111261029142914">Added the 512 GB specifications of DCS Redis 3.0 instances in sections <a href="CacheCluster.html">Proxy Cluster Redis</a> and <a href="dcs-pd-0916001.html">Redis 3.0 Instance Specifications</a>.</li><li id="dcs-ug-0326026__li3126162911294">Added the impact of specification modification on some instances, in section <a href="dcs-ug-0326011.html">Modifying DCS Instance Specifications</a>.</li><li id="dcs-ug-0326026__li101263298296">Optimized description about modifying configurations in sections <a href="dcs-ug-0312016.html">Viewing Details of a DCS Instance</a>, <a href="dcs-ug-0326013.html">Restarting DCS Instances</a>, <a href="dcs-ug-0312024.html">Modifying Configuration Parameters</a>, <a href="dcs-ug-190926001.html">Viewing Redis Slow Queries</a>, <a href="dcs-ug-0312032.html">Manually Backing Up a DCS Instance</a>, and <a href="dcs-ug-190905001.html">Configuring Alarm Rules for Critical Metrics</a>.</li><li id="dcs-ug-0326026__li1865273111">Added section <a href="dcs-ug-190812001.html">Managing IP Address Whitelist</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row10286191094211"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p3287141074214">July 13, 2022</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p172871910134216">Modified the following content:</p>
<p id="dcs-ug-0326026__p181155338427">Added description about system resources and modified the procedure for enabling auto backup in section <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>.</p>
</td>
</tr>
<tr id="dcs-ug-0326026__row1357042143817"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p73581642133810">April 11, 2022</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p044205414403">Modified the following content:</p>
<p id="dcs-ug-0326026__p163587426384">Added description about accessing an instance in different languages. For details, see <a href="dcs-ug-0916002.html">Accessing an Instance</a>.</p>
<p id="dcs-ug-0326026__p82152810614">Added section <a href="dcs-ug-210107001.html">Managing Shards and Replicas</a>.</p>
</td>
</tr>
<tr id="dcs-ug-0326026__row2086913220345"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p68701932113418">June 30, 2021</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p17702185193513">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul426132314232"><li id="dcs-ug-0326026__li12613235235">Optimized the procedure for creating an OBS bucket in section <a href="dcs-ug-0312037.html">Importing Backup Files from an OBS Bucket</a>.</li><li id="dcs-ug-0326026__li18261523132317">Updated the commands supported and disabled by Web CLI in section <a href="dcs-pd-190826001.html">Web CLI Commands</a>.</li><li id="dcs-ug-0326026__li0971112412318">Added the following FAQs:<ul id="dcs-ug-0326026__ul5501351242"><li id="dcs-ug-0326026__li1415925902314"><a href="dcs-faq-0730014.html">Why Aren't Security Groups Configured for DCS Redis 4.0/5.0/6.0 Instances?</a></li><li id="dcs-ug-0326026__li1031017348275"><a href="dcs-faq-0730017.html">Can I Obtain the Addresses of the Nodes in a Cluster DCS Redis Instance?</a></li><li id="dcs-ug-0326026__li119827508280"><a href="dcs-faq-0730032.html">Does DCS for Redis Provide Backend Management Software?</a></li><li id="dcs-ug-0326026__li1816815403"><a href="dcs-faq-210223001.html">Why Is "Error in execution" Returned When I Access Redis?</a></li><li id="dcs-ug-0326026__li49321259174015"><a href="dcs-faq-0326023.html">Monitoring and Alarm</a></li><li id="dcs-ug-0326026__li13287643144117"><a href="dcs-migration-090626001.html">Online Migration with Rump</a></li></ul>
</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row11619105321220"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1962018530129">November 20, 2020</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p1454394111316">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul18194161019139"><li id="dcs-ug-0326026__li1619511021319">Modified the description and specifications of DCS for Redis 3.0 in section <a href="en-us_topic_0054235826.html">What Is DCS?</a></li><li id="dcs-ug-0326026__li183381851141513">Modified the commands disabled in Proxy Cluster instances in section <a href="dcs-pd-0916001.html">Redis 3.0 Instance Specifications</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row2084101855916"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p584101819590">July 13, 2021</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p384181814594">Modified the following content:</p>
<p id="dcs-ug-0326026__p32429116012">Added detailed description about permissions management in sections <a href="dcs-pd-210626001.html">Permissions</a> and <a href="dcs-ug-210626003.html">Permissions Management</a>.</p>
</td>
</tr>
<tr id="dcs-ug-0326026__row1779193162914"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p978015316291">2020-10-13</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p1296419199292">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul51416152917"><li id="dcs-ug-0326026__li1146615299">Added support for renaming critical commands of DCS Redis 4.0 and 5.0 instances. For details, see <a href="dcs-ug-1009002.html">Command Renaming</a>.</li><li id="dcs-ug-0326026__li01517615291">Added the cache analysis function. For details, see <a href="dcs-ug-190808001.html">Analyzing Big Keys and Hot Keys</a>.</li><li id="dcs-ug-0326026__li2015196122913">Added the slow log function. For details, see <a href="dcs-ug-190926001.html">Viewing Redis Slow Queries</a>.</li><li id="dcs-ug-0326026__li1315146162914">Added the run log function. For details, see <a href="dcs-ug-1009001.html">Viewing Redis Run Logs</a>.</li><li id="dcs-ug-0326026__li20543147143110">Added cluster instance metrics in section <a href="dcs-ug-0326019.html">DCS Metrics</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row1937617551853"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1637710551359">September 30, 2020</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p61756111966">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul147072141778"><li id="dcs-ug-0326026__li7439733184113">Added description about DCS Redis 4.0 and 5.0 instances in section <a href="en-us_topic_0054235826.html">What Is DCS?</a></li><li id="dcs-ug-0326026__li1694663311513">Added typical application scenarios in section <a href="dcs-pd-0326002.html">Application Scenarios</a>.</li><li id="dcs-ug-0326026__li3705165491618">Added section <a href="dcs-pd-200312001.html">DCS Instance Types</a> to describe the architectures of single-node, master/standby, Proxy Cluster, and Redis Cluster instances.</li><li id="dcs-ug-0326026__li195671846171717">Added section <a href="GlobalDRPolicy.html">Disaster Recovery and Multi-Active Solution</a> to describe the disaster recovery strategies of DCS.</li><li id="dcs-ug-0326026__li5205183091916">Added description about the specifications of DCS Redis 4.0 and 5.0 instances, QPS of DCS Redis 3.0 instances, and 1024 GB Proxy Cluster DCS Redis 3.0 instances in section <a href="en-us_topic_0054235835.html">DCS Instance Specifications</a>.</li><li id="dcs-ug-0326026__li18966144482116">Added section <a href="dcs-pd-0326003.html">Comparing DCS and Open-Source Cache Services</a>.</li><li id="dcs-ug-0326026__li760212163913">Added section <a href="RedisDifference.html">Comparing Redis Versions</a> to compare DCS for Redis 3.0, 4.0, and 5.0.</li><li id="dcs-ug-0326026__li336791912411">Added description about command compatibility of DCS Redis 4.0 and 5.0 instances in section <a href="dcs-pd-200312003.html">Command Compatibility</a>.</li><li id="dcs-ug-0326026__li106224424317">Added section <a href="dcs-pd-200312004.html">Basic Concepts</a> to describe the basic concepts of DCS.</li><li id="dcs-ug-0326026__li77637217446">Added the description about OBS in section <a href="dcs-pd-0326006.html">Related Services</a>.</li><li id="dcs-ug-0326026__li492315419468">Added section <a href="PurchasePreparation.html">Identifying Requirements</a>.</li><li id="dcs-ug-0326026__li53251699581">Modified description about the process for creating instances and added description about creating DCS Redis 4.0 and 5.0 instances in section <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>.</li><li id="dcs-ug-0326026__li7308105515710">Added the description about the sold-out tip for the AZ parameter in section <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>.</li><li id="dcs-ug-0326026__li3592058104613">Modified descriptions in the <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a> and Jedis sections.</li><li id="dcs-ug-0326026__li197252534719">Added section <a href="dcs-ug-0312008.html">Accessing a DCS Redis 4.0/5.0/6.0 Instance on the Console</a>.</li><li id="dcs-ug-0326026__li576703134810">Added description about DCS Redis 4.0 and 5.0 instances in section <a href="dcs-ug-0312016.html">Viewing Details of a DCS Instance</a>.</li><li id="dcs-ug-0326026__li14831132194919">Added notes on changing the DCS instance specifications in section <a href="dcs-ug-0326011.html">Modifying DCS Instance Specifications</a>.</li><li id="dcs-ug-0326026__li11965192715506">Added section <a href="dcs-ug-0312017.html">Performing a Master/Standby Switchover for a DCS Instance</a>.</li><li id="dcs-ug-0326026__li1848895695017">Added section <a href="dcs-ug-0312018.html">Clearing DCS Instance Data</a> to describe how to clear data of DCS Redis 4.0 and 5.0 instances.</li><li id="dcs-ug-0326026__li1958020519515">Added section <a href="dcs-ug-0312019.html">Exporting DCS Instance List</a>.</li><li id="dcs-ug-0326026__li12751536195214">Added section <a href="dcs-ug-0312029.html">Viewing Data Storage Statistics of a DCS Redis 3.0 Proxy Cluster Instance</a>.</li><li id="dcs-ug-0326026__li11441186539">Added section <a href="dcs-ug-0312034.html">Downloading a Backup File</a>.</li><li id="dcs-ug-0326026__li142021543155317">Added section <a href="dcs-ug-0312035.html">Migrating Data with DCS</a>.</li><li id="dcs-ug-0326026__li17172144516549">Added section <a href="cache-instance-password.html">DCS Instance Passwords</a> to describe the password used for connecting to DCS instances.</li><li id="dcs-ug-0326026__li155171422155514">Added metrics of DCS Redis 4.0 and 5.0 instances in section <a href="dcs-ug-0326019.html">DCS Metrics</a>.</li><li id="dcs-ug-0326026__li429463914567">Added section <a href="dcs-ug-0326017.html">Auditing</a> to describe the DCS operations that can be recorded by CTS.</li><li id="dcs-ug-0326026__li114657611575">Modified the structure of FAQs and added new FAQs in chapter <a href="dcs-faq-0326019.html">FAQs</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row4931138124610"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p13949385467">2020-07-17</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p18889645226">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul03458118480"><li id="dcs-ug-0326026__li153457144812">Added a note in section <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a> to advise against hard-coding plaintext passwords in the code.</li><li id="dcs-ug-0326026__li1843815794814">Added an explanation of the <strong id="dcs-ug-0326026__b1235273363015">SYS.DCS</strong> namespace and optimized the table layout in section <a href="dcs-ug-0326019.html">DCS Metrics</a>.</li><li id="dcs-ug-0326026__li51986427533">Updated the picture that demonstrates viewing instance metrics in section <a href="dcs-ug-190905001.html">Configuring Alarm Rules for Critical Metrics</a>.</li><li id="dcs-ug-0326026__li104061279540">Optimized the description about CIDR blocks for cross-VPC access and added the table caption in FAQ <a href="en-us_topic_0100698850.html">Does DCS Support Cross-VPC Access?</a></li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row1744782622"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p44481621829">2020-05-30</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p55372412219">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul12869339348"><li id="dcs-ug-0326026__li10123132754815">Changed the cluster instance type to Proxy Cluster in section <a href="en-us_topic_0054235826.html">What Is DCS?</a></li><li id="dcs-ug-0326026__li161281127124818">Removed description about creating multiple instances in batches and modified password complexity requirements in section <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>.</li><li id="dcs-ug-0326026__li111281427184812">Removed the instance topology parameter in section <a href="dcs-ug-0312016.html">Viewing Details of a DCS Instance</a>.</li><li id="dcs-ug-0326026__li912832784815">Changed the default value of the <strong id="dcs-ug-0326026__b1512872714485">reserved-memory-percent</strong> parameter to <strong id="dcs-ug-0326026__b18128127174818">0 </strong>and added a note clarifying that the configuration parameters supported by single-node and master/standby instances are different in section <a href="dcs-ug-0312024.html">Modifying Configuration Parameters</a>.</li><li id="dcs-ug-0326026__li21288276484">Modified the special characters that the passwords cannot contain in section <a href="dcs-ug-0312040.html">Changing Instance Passwords</a>.</li><li id="dcs-ug-0326026__li612822712482">Removed the section which describes the function of viewing data storage statics of a Proxy Cluster instance.</li><li id="dcs-ug-0326026__li612882724815">Added a note clarifying that the backup policy function is not supported by single-node instances in section <a href="dcs-ug-0312031.html">Configuring an Automatic Backup Policy</a>.</li><li id="dcs-ug-0326026__li7128132719488">Removed Redis Server and Proxy metrics from section <a href="dcs-ug-0326016.html">Monitoring</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row14997135082316"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p1899945013233">2020-03-25</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p179990504237">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul16491334152913"><li id="dcs-ug-0326026__li144914348292">Changed the cluster instance type to Proxy Cluster in section <a href="en-us_topic_0054235826.html">What Is DCS?</a></li><li id="dcs-ug-0326026__li12216122413314">Modified the lists of supported and disabled Redis commands in section <a href="dcs-pd-200312003.html">Command Compatibility</a>.</li><li id="dcs-ug-0326026__li1228111013219">Added the assured/maximum bandwidth parameter in section <a href="en-us_topic_0054235835.html">DCS Instance Specifications</a>.</li><li id="dcs-ug-0326026__li165818280341">Moved the metrics originally described in section <a href="dcs-pd-0326006.html">Related Services</a> to section <a href="dcs-ug-0326019.html">DCS Metrics</a> and updated the metrics supported by Cloud Eye.</li><li id="dcs-ug-0326026__li83126508354">Modified instance creation parameters in <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a> according to DCS console upgrade and parameter modifications.</li><li id="dcs-ug-0326026__li1311715177406">Modified instance details parameters in section <a href="dcs-ug-0312016.html">Viewing Details of a DCS Instance</a> according to DCS console upgrade and parameter modifications.</li><li id="dcs-ug-0326026__li78299437018">Modified instance configuration parameters in section <a href="dcs-ug-0312024.html">Modifying Configuration Parameters</a>.</li><li id="dcs-ug-0326026__li265162921218">Removed the function of stopping instances.</li><li id="dcs-ug-0326026__li153881141205718">Added description about restrictions of starting instances in section <a href="dcs-ug-0911001.html">Starting DCS Instances</a>.</li><li id="dcs-ug-0326026__li35863371107">Changed parameter <strong id="dcs-ug-0326026__b992410914819">Time Window</strong> to <strong id="dcs-ug-0326026__b189241094812">Maintenance</strong> in section <a href="dcs-ug-0312025.html">Modifying Maintenance Time Window</a>.</li><li id="dcs-ug-0326026__li31651927172212">Modified description about configuring instance backup policies in section <a href="dcs-ug-0312031.html">Configuring an Automatic Backup Policy</a>.</li><li id="dcs-ug-0326026__li1058034562420">Added chapter <a href="dcs-ug-0326016.html">Monitoring</a>, updated metrics supported by Cloud Eye, and added description about operations of viewing monitoring data and setting alarm rules.</li><li id="dcs-ug-0326026__li1775115322254">Changed the supported number of DBs for single-node and master/standby instances in section <a href="dcs-faq-0730019.html">Does DCS for Redis Support Multiple Databases?</a></li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row1420963613588"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p3392143018460">2019-04-12</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p29399237461">Accepted in OTC-4.0/Agile-04.2019.</p>
</td>
</tr>
<tr id="dcs-ug-0326026__row6909155152719"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p16580105814595">2019-03-30</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p19311728436">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul7838319510"><li id="dcs-ug-0326026__li18838131125114">Removed support for creating DCS instances with the specification of 1 GB in sections <a href="en-us_topic_0054235835.html">DCS Instance Specifications</a> and <a href="dcs-ug-0326008.html">Creating a DCS Redis Instance</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row1984420432818"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p14844944287">2018-09-05</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p1984484112819">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul11280711313"><li id="dcs-ug-0326026__li928470313">Opened certain Redis cluster commands. For details about compatibility with DCS commands, see <a href="dcs-pd-200312003.html">Command Compatibility</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row29622590507"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p79641759195018">2018-03-16</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p1496485918507">Added the following content:</p>
<ul id="dcs-ug-0326026__ul8347750205419"><li id="dcs-ug-0326026__li165971225165013">Added the procedure for using a Redis Java (Jedis) client to access a DCS instance. For details, see <a href="dcs-ug-0326009.html">Accessing a DCS Redis Instance Through redis-cli</a>.</li><li id="dcs-ug-0326026__li57481216134614">Added descriptions about the Redis-specific parameter <strong id="dcs-ug-0326026__b9603812134918">notify-keyspace-events</strong>, and<strong id="dcs-ug-0326026__b860412122493"> </strong>deleted descriptions about the Redis-specific parameter <strong id="dcs-ug-0326026__b9413476467">maxclients</strong>. For details, see <a href="dcs-ug-0312024.html">Modifying Configuration Parameters</a>.</li><li id="dcs-ug-0326026__li173461350185412">Added the procedures for modifying the time window and security group of a DCS instance. For details, see <a href="dcs-ug-0312025.html">Modifying Maintenance Time Window</a> and <a href="dcs-ug-0312026.html">Modifying the Security Group</a>.</li><li id="dcs-ug-0326026__li01281459477">Added <a href="en-us_topic_0100698850.html">Does DCS Support Cross-VPC Access?</a> in chapter <a href="dcs-faq-0326019.html">FAQs</a>.</li></ul>
<p id="dcs-ug-0326026__p19644174710242">Modified the following content:</p>
<ul id="dcs-ug-0326026__ul13677131014256"><li id="dcs-ug-0326026__li76771410172511">Changed instance password complexity rules.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row279743594416"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p2924219184516">2017-11-08</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p1592641994513">Added the following content:</p>
<ul id="dcs-ug-0326026__ul59271519194512"><li id="dcs-ug-0326026__li179281619124514">Provided support for DCS instances in cluster mode.</li><li id="dcs-ug-0326026__li8930819194516">Added sections <a href="dcs-ug-0326011.html">Modifying DCS Instance Specifications</a> and <a href="dcs-ug-0312030.html">Backing Up and Restoring DCS Instances</a>.</li><li id="dcs-ug-0326026__li13934161994512">Added the <strong id="dcs-ug-0326026__b119372019134520">Time Window</strong> parameter.</li><li id="dcs-ug-0326026__li189399194456">Added section <a href="dcs-ug-0312004.html">Preparing Required Resources</a>.</li></ul>
<ul id="dcs-ug-0326026__ul194214197455"><li id="dcs-ug-0326026__li694871954514">Added some FAQs in chapter <a href="dcs-faq-0326019.html">FAQs</a>.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row1225584518447"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p17429433194517">2017-05-30</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><div class="p" id="dcs-ug-0326026__p1343113319450">Added the following content:<ul id="dcs-ug-0326026__ul14432133174517"><li id="dcs-ug-0326026__li134335339450">Added descriptions about batch deletion of DCS instances.</li><li id="dcs-ug-0326026__li2435143311458">Added descriptions about the Redis-specific parameter <strong id="dcs-ug-0326026__b1943714331453">latency-monitor-threshold</strong>.</li></ul>
</div>
</td>
</tr>
<tr id="dcs-ug-0326026__row177921645154417"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p13440123354510">2017-04-28</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p6442113318459">Added the following content:</p>
<ul id="dcs-ug-0326026__ul125527477250"><li id="dcs-ug-0326026__li1455254720251">Added descriptions of DCS metrics monitored by Cloud Eye.</li></ul>
</td>
</tr>
<tr id="dcs-ug-0326026__row3175194613445"><td class="cellrowborder" valign="top" width="18.029999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="dcs-ug-0326026__p8457113315457">2017-04-05</p>
</td>
<td class="cellrowborder" valign="top" width="81.97%" headers="mcps1.3.1.1.3.1.2 "><p id="dcs-ug-0326026__p11459333174515">This issue is the first official release.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div></div>
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