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<p>
When a replica is in the process of synchronizing with
its master, DB operations are blocked at some
points during this process until the synchronization is
completed. For replicas with a heavy read load, these
blocked operations may represent an unacceptable loss
in throughput.
</p>
<p>
You can configure DB so that it will not block when synchronization is in
process. Instead, the DB operation will fail,
<span>
immediately throwing a
<code class="classname">com.sleepycat.db.ReplicationLockoutException</code>
exception.
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When this happens, it is up to your application to determine
what action to take (that is, logging the event, making an appropriate user
response, retrying the operation, and so forth).
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<p>
To turn off blocking on synchronization, specify
<span>
<code class="literal">ReplicationConfig.NOWAIT</code> and
<code class="literal">true</code> to
<code class="methodname">Environment.setReplicationConfig()</code>.
To turn off this feature, specify
<code class="literal">false</code> for the
<code class="literal">ReplicationConfig.NOWAIT</code> field.
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