add buffer size comments patch by Marcus Eriksson for CASSANDRA-5291
Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/02ea439a Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/02ea439a Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/02ea439a Branch: refs/heads/cassandra-1.2 Commit: 02ea439a4356558654a837f420cf62af0b8f3bc4 Parents: 88b9d95 Author: Jonathan Ellis <jbel...@apache.org> Authored: Tue Feb 26 09:49:22 2013 -0600 Committer: Jonathan Ellis <jbel...@apache.org> Committed: Tue Feb 26 09:49:22 2013 -0600 ---------------------------------------------------------------------- conf/cassandra.yaml | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/cassandra/blob/02ea439a/conf/cassandra.yaml ---------------------------------------------------------------------- diff --git a/conf/cassandra.yaml b/conf/cassandra.yaml index 8e910d8..6d0528a 100644 --- a/conf/cassandra.yaml +++ b/conf/cassandra.yaml @@ -389,7 +389,15 @@ rpc_server_type: sync # rpc_send_buff_size_in_bytes: # rpc_recv_buff_size_in_bytes: -# uncomment to set socket buffer size for internode communication +# Uncomment to set socket buffer size for internode communication +# Note that when setting this, the buffer size is limited by net.core.wmem_max +# and when not setting it it is defined by net.ipv4.tcp_wmem +# See: +# /proc/sys/net/core/wmem_max +# /proc/sys/net/core/rmem_max +# /proc/sys/net/ipv4/tcp_wmem +# /proc/sys/net/ipv4/tcp_wmem +# and: man tcp # internode_send_buff_size_in_bytes: # internode_recv_buff_size_in_bytes:
