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            <title>[SERVER-3970] config option for replica set to block writes if no secondary can keep up</title>
                <link>https://jira.mongodb.org/browse/SERVER-3970</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While evaluating MongoDB, I tried to insert into a single replica set (one master, two slaves) many small documents (around 100 GB of data) with eight Python clients.&lt;br/&gt;
I kept the default oplog size, which is between 5 and 10% of the whole disk. It doesn&apos;t really matter, since it can only delay the problem without really avoiding it (in case of permanent insertions).&lt;/p&gt;

&lt;p&gt;Before the end of the import, I got the evil RS 102 error, too stale to catch up. I can understand this, since the master has to spread all the data it got to two (or more) slaves, so slaves are slower than it.&lt;br/&gt;
However, can I expect a new configuration option to force the master to wait its slaves before reaching the non-return point? &lt;/p&gt;

&lt;p&gt;Thus we could ensure that this RS 102 error will not happen anymore.&lt;/p&gt;</description>
                <environment>Linux Debian 6.0 64bits, bi-Xeon quad-core, 32GB</environment>
        <key id="22956">SERVER-3970</key>
            <summary>config option for replica set to block writes if no secondary can keep up</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="nbourbaki">nicolas.bourbaki</reporter>
                        <labels>
                            <label>replication</label>
                    </labels>
                <created>Wed, 28 Sep 2011 20:44:49 +0000</created>
                <updated>Fri, 7 Mar 2014 19:54:06 +0000</updated>
                            <resolved>Fri, 7 Mar 2014 19:54:06 +0000</resolved>
                                    <version>1.8.2</version>
                    <version>2.0.0</version>
                                                    <component>Replication</component>
                                        <votes>1</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="511762" author="milkie" created="Fri, 7 Mar 2014 19:54:06 +0000"  >&lt;p&gt;We can&apos;t do this as replication is currently designed, as the primary&apos;s knowledge of each secondary&apos;s current oplog read point is not synchronous.&lt;/p&gt;</comment>
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