BIND 10 master, updated. ffa68930da0e9e19f697f1345807108dca356386 [1356] Update description of database locked error

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- Log -----------------------------------------------------------------
commit ffa68930da0e9e19f697f1345807108dca356386
Author: Jelte Jansen <jelte at isc.org>
Date:   Wed Jan 23 11:24:31 2013 +0100

    [1356] Update description of database locked error

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Summary of changes:
 src/bin/xfrin/xfrin_messages.mes |    4 ++++
 1 file changed, 4 insertions(+)

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diff --git a/src/bin/xfrin/xfrin_messages.mes b/src/bin/xfrin/xfrin_messages.mes
index 770a8b2..a40781a 100644
--- a/src/bin/xfrin/xfrin_messages.mes
+++ b/src/bin/xfrin/xfrin_messages.mes
@@ -175,6 +175,10 @@ exception message is printed in the log message.
 The XFR transfer for the given zone has failed due to a problem outside
 of the xfrin module.  Possible reasons are a broken DNS message or failure
 in database connection.  The error is shown in the log message.
+One common cause of this error could be a locked database; especially when
+using sqlite3 where a single transaction involving write operations blocks
+any other read or write transactions. This is not a critical error, and
+the transfer will be attempted again at the next retry time.
 
 % XFRIN_XFR_PROCESS_FAILURE %1 transfer of zone %2/%3 failed: %4
 An XFR session failed outside the main protocol handling.  This