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Code Issues Releases Wiki Activity

Update to bind 9.7.0b3, remove work around for fdwatchpoke bug

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This commit is contained in:
Shawn Routhier
2009-11-20 00:10:14 +00:00
parent c900c5b249
commit fe4b839a22
3 changed files with 3 additions and 25 deletions
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13
RELNOTES
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@@ -13,19 +13,6 @@ Processing the DHCP to DNS server transactions in an asyncrhonous fashion.
The DHCP server or client can now continue with it's processing while
awaiting replies from the DNS server.
As part of the changes to support asynchronous DNS the DHCP code was
modified to use the current BIND libraries and a small number of changes
were made to the BIND libraries to support DHCP. There is a bug in one
of these changes that can cause an exception in a DHCP server. This bug
requires either failover or omapi to be in use and a number of events
(timeouts, packet reception, packet transmision) to happen within the same
scheduling interval. As a work around the number of events required to
trigger this issue has been increased though this may affect the responsivness
of the DNS code under load. A fix is being developed but needs
to go into a BIND release. Note that the bug is in a part of the BIND
libraries that is only used by the DHCP code and does NOT affect any
other part of the BIND code.
There are a number of DHCPv6 limitations and features missing in this
release, which will be addressed in the future:

11
omapip/isclib.c
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@@ -127,16 +127,7 @@ dhcp_context_create(void) {
if (result != ISC_R_SUCCESS)
goto cleanup;
/*sar*/
/*
* We currently use a large number for quantum to get around
* an issue in the fdwatchpoke code that allows us to re-check
* a socket for reading or writing even if it already has a pending
* read or write. This event causes an exception and stops the
* program. When that code is fixed the quantum can be reduced.
*/
result = isc_task_create(dhcp_gbl_ctx.taskmgr, 100,
&dhcp_gbl_ctx.task);
result = isc_task_create(dhcp_gbl_ctx.taskmgr, 0, &dhcp_gbl_ctx.task);
if (result != ISC_R_SUCCESS)
goto cleanup;

4
util/bind.sh
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@@ -14,7 +14,7 @@
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
# $Id: bind.sh,v 1.5 2009/11/09 20:25:00 dhankins Exp $
# $Id: bind.sh,v 1.6 2009/11/20 00:10:14 sar Exp $
# Get the bind distribution for the libraries
# This script is used to build the DHCP distribution and shouldn't be shipped
@@ -30,7 +30,7 @@ binddir=$topdir/bind
case $# in
1)
case "$1" in
4.2.0a2|4.2.0a1|4.2.0) BINDTAG=v9_7_0b2 ;;
4.2.0a2|4.2.0a1|4.2.0) BINDTAG=v9_7_0b3 ;;
*) echo "bind.sh: unsupported version: $1" >&2
exit 1
;;