diff options
| author |   baigk <baiguoku@huawei.com> | 2015-08-02 21:56:23 -0400 |
|---|---|---|
| committer | baigk <baiguoku@huawei.com> | 2015-08-02 22:46:09 -0400 |
| commit | 79b571dae951ba9bfe36440750c1a1408b19cd69 (patch) | |
| tree | e930de3f7b9bb15f5a705fcc5b13011a500e91f4 /deploy/adapters/cobbler/snippets/preseed_sysctl.conf | |
| parent | 9e4cf51b4b2815e90824859b52d649b6c37219d9 (diff) | |
support deployment os of ubuntu 14.04 with cobbler for compass
JIRA: COMPASS-3
Change-Id: I703658b04ec7ec1df4a2a3b9eac5656419d8fd9f
Signed-off-by: baigk <baiguoku@huawei.com>
Diffstat (limited to 'deploy/adapters/cobbler/snippets/preseed_sysctl.conf')
| -rw-r--r-- | deploy/adapters/cobbler/snippets/preseed_sysctl.conf | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/deploy/adapters/cobbler/snippets/preseed_sysctl.conf b/deploy/adapters/cobbler/snippets/preseed_sysctl.conf new file mode 100644 index 00000000..e2e4c3b3 --- /dev/null +++ b/deploy/adapters/cobbler/snippets/preseed_sysctl.conf @@ -0,0 +1,72 @@ +cat << EOF > /etc/sysctl.conf
+#raw
+# Kernel sysctl configuration file for Red Hat Linux
+#
+# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and
+# sysctl.conf(5) for more details.
+
+# Controls IP packet forwarding
+net.ipv4.ip_forward = 0
+
+# Controls source route verification
+net.ipv4.conf.default.rp_filter = 1
+
+# Do not accept source routing
+net.ipv4.conf.default.accept_source_route = 0
+
+# Controls the System Request debugging functionality of the kernel
+kernel.sysrq = 0
+
+# Controls whether core dumps will append the PID to the core filename.
+# Useful for debugging multi-threaded applications.
+kernel.core_uses_pid = 1
+
+# Controls the use of TCP syncookies
+net.ipv4.tcp_syncookies = 1
+
+# Controls the default maxmimum size of a mesage queue
+kernel.msgmnb = 65536
+
+# Controls the maximum size of a message, in bytes
+kernel.msgmax = 65536
+
+# Controls the maximum shared segment size, in bytes
+kernel.shmmax = 68719476736
+
+# Controls the maximum number of shared memory segments, in pages
+kernel.shmall = 4294967296
+
+# increase TCP max buffer size settable using setsockopt()
+net.core.rmem_max = 16777216
+net.core.wmem_max = 16777216
+
+# increase Linux autotuning TCP buffer limit
+net.ipv4.tcp_rmem = 4096 87380 16777216
+net.ipv4.tcp_wmem = 4096 65536 16777216
+
+# increase the length of the processor input queue
+net.core.netdev_max_backlog = 30000
+net.ipv4.tcp_max_syn_backlog = 4096
+
+# recommended default congestion control is htcp
+net.ipv4.tcp_congestion_control=htcp
+
+# recommended for hosts with jumbo frames enabled
+net.ipv4.tcp_mtu_probing=1
+
+# increase client parallel connections
+net.ipv4.ip_local_port_range = 15000 61000
+net.ipv4.tcp_fin_timeout=30
+
+# fast cycling of sockets in time_wait state and re-using them
+net.ipv4.tcp_tw_recycle = 1
+net.ipv4.tcp_tw_reuse = 1
+
+# increase the maximum number of requests queued to a listen socket
+net.core.somaxconn = 8192
+
+# avoid caching tcp network transfer statistics
+net.ipv4.route.flush=1
+#end raw
+EOF
+sysctl -p
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