Added TTL to multicast IP finder
Project: http://git-wip-us.apache.org/repos/asf/incubator-ignite/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-ignite/commit/94e95ea7 Tree: http://git-wip-us.apache.org/repos/asf/incubator-ignite/tree/94e95ea7 Diff: http://git-wip-us.apache.org/repos/asf/incubator-ignite/diff/94e95ea7 Branch: refs/heads/ignite-1258 Commit: 94e95ea77bc930a7f416386a2ede1295bddf73d0 Parents: abbd308 Author: Valentin Kulichenko <valentin.kuliche...@gmail.com> Authored: Thu Aug 20 17:36:02 2015 -0700 Committer: Valentin Kulichenko <valentin.kuliche...@gmail.com> Committed: Thu Aug 20 17:36:02 2015 -0700 ---------------------------------------------------------------------- .../TcpDiscoveryMulticastIpFinder.java | 38 ++++++++++++++++++++ 1 file changed, 38 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/94e95ea7/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ipfinder/multicast/TcpDiscoveryMulticastIpFinder.java ---------------------------------------------------------------------- diff --git a/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ipfinder/multicast/TcpDiscoveryMulticastIpFinder.java b/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ipfinder/multicast/TcpDiscoveryMulticastIpFinder.java index bdc7865..e4a1626 100644 --- a/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ipfinder/multicast/TcpDiscoveryMulticastIpFinder.java +++ b/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ipfinder/multicast/TcpDiscoveryMulticastIpFinder.java @@ -99,6 +99,9 @@ public class TcpDiscoveryMulticastIpFinder extends TcpDiscoveryVmIpFinder { /** Local address */ private String locAddr; + /** Time to live. */ + private Integer ttl; + /** */ @GridToStringExclude private Collection<AddressSender> addrSnds; @@ -223,6 +226,32 @@ public class TcpDiscoveryMulticastIpFinder extends TcpDiscoveryVmIpFinder { return locAddr; } + /** + * Set the default time-to-live for multicast packets sent out on this + * IP finder in order to control the scope of the multicast. + * <p> + * The TTL has to be in the range {@code 0 <= TTL <= 255}. + * <p> + * If TTL is {@code 0}, packets are not transmitted on the network, + * but may be delivered locally. + * + * @param ttl Time to live. + */ + @IgniteSpiConfiguration(optional = true) + public void setTimeToLive(int ttl) { + this.ttl = ttl; + } + + /** + * Set the default time-to-live for multicast packets sent out on this + * IP finder. + * + * @return Time to live. + */ + public int getTimeToLive() { + return ttl; + } + /** {@inheritDoc} */ @Override public void initializeLocalAddresses(Collection<InetSocketAddress> addrs) throws IgniteSpiException { // If IGNITE_OVERRIDE_MCAST_GRP system property is set, use its value to override multicast group from @@ -245,6 +274,9 @@ public class TcpDiscoveryMulticastIpFinder extends TcpDiscoveryVmIpFinder { throw new IgniteSpiException("Invalid number of address request attempts, " + "value greater than zero is expected: " + addrReqAttempts); + if (ttl != null && (ttl < 0 || ttl > 255)) + throw new IgniteSpiException("Time-to-live value is out of 0 <= TTL <= 255 range: " + ttl); + if (F.isEmpty(getRegisteredAddresses())) U.warn(log, "TcpDiscoveryMulticastIpFinder has no pre-configured addresses " + "(it is recommended in production to specify at least one address in " + @@ -452,6 +484,9 @@ public class TcpDiscoveryMulticastIpFinder extends TcpDiscoveryVmIpFinder { sock.setSoTimeout(resWaitTime); + if (ttl != null) + sock.setTimeToLive(ttl); + reqPckt.setData(MSG_ADDR_REQ_DATA); try { @@ -721,6 +756,9 @@ public class TcpDiscoveryMulticastIpFinder extends TcpDiscoveryVmIpFinder { sock.joinGroup(mcastGrp); + if (ttl != null) + sock.setTimeToLive(ttl); + return sock; }
