[Dovecot] virtual folder - crash while searching

André Rodier andre.rodier at gmail.com
Sun Mar 10 10:00:03 EET 2013

Hello everyone,

I had the same errors on my server, and I fixed it by increasing the
header size buffer of my server to 65535, for instance.

For jetty, the option is named headerBufferSize. See:

<Call name="addConnector">
      <New class="org.mortbay.jetty.nio.SelectChannelConnector">
        <Set name="host"><SystemProperty name="jetty.host" /></Set>
        <Set name="port"><SystemProperty name="jetty.port"
        <Set name="maxIdleTime">30000</Set>
        <Set name="Acceptors">2</Set>
        <Set name="statsOn">false</Set>
        <Set name="confidentialPort">8443</Set>
        <Set name="headerBufferSize">65536</Set>
    <Set name="lowResourcesConnections">5000</Set>
    <Set name="lowResourcesMaxIdleTime">5000</Set>

On 3 August 2012 15:14, Timo Sirainen <tss at iki.fi> wrote:
> On 1.8.2012, at 23.23, Matthias Rieber wrote:
>> alright. Some resources say that "413 FULL head" means request too large. Maybe that's caused by the pretty big folder virtual.all which contains more than 360000 mails.
> Probably it means that the virtual folder consists of too many real folders. Dovecot's Solr query adds each real folder's GUID to the query. I guess there should be some limit and it would have to send more than one query and merge the results.
No need to do this.

André Rodier

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