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    <title>MongoDB Jira</title>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-8076] Increased tolerance around network connectivity issues on initial sync</title>
                <link>https://jira.mongodb.org/browse/SERVER-8076</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Investigate making initial sync more tolerant regarding network connectivity issues on the sync, i.e. investigate the possibility of a fresh TCP connection to resume the sync as opposed to going back to the start.&lt;/p&gt;

&lt;p&gt;There are three distinct areas that would have to handle this better: the one they ran into (querying the primary for its latest optime), cloning, and connecting to fetch missing documents (as in their linked ticket). &lt;/p&gt;

&lt;p&gt;One could also argue that it should be more flexible about changing initial sync targets mid-stream, however, that &lt;em&gt;may&lt;/em&gt; be more difficult. &lt;/p&gt;</description>
                <environment></environment>
        <key id="60921">SERVER-8076</key>
            <summary>Increased tolerance around network connectivity issues on initial sync</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="mark">Mark porter</reporter>
                        <labels>
                            <label>sync</label>
                    </labels>
                <created>Fri, 4 Jan 2013 16:36:19 +0000</created>
                <updated>Tue, 6 Dec 2022 05:26:08 +0000</updated>
                            <resolved>Wed, 23 Nov 2016 19:19:15 +0000</resolved>
                                                                    <component>Replication</component>
                                        <votes>8</votes>
                                    <watches>15</watches>
                                                                                                                <comments>
                            <comment id="1441539" author="spencer" created="Wed, 23 Nov 2016 19:19:15 +0000"  >&lt;p&gt;Handling of transient network errors was improved as part of the initial sync rewrite that went into 3.4&lt;/p&gt;</comment>
                            <comment id="1012488" author="pieterwjordaanpc@gmail.com" created="Sun, 23 Aug 2015 07:11:51 +0000"  >&lt;p&gt;This is a huge frustration. Trying to replicate two 3.0.5 servers with +- 20 million documents and it keeps failing silently. Resume initial sync would be a great feature. I now have to manually sync with snapshots.&lt;/p&gt;</comment>
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            <issuekey id="181805">SERVER-17139</issuekey>
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            <issuelink>
            <issuekey id="139604">SERVER-14133</issuekey>
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