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authorWladimir J. van der Laan <laanwj@gmail.com>2015-07-10 19:11:19 +0200
committerWladimir J. van der Laan <laanwj@gmail.com>2015-07-10 19:23:55 +0200
commitd26f951802c762de04fb68e1a112d611929920ba (patch)
treea09aca01406f82c53163da12fd31e73eb6a5d6fd
parent757ceaab0ae3b88f110787dd93f2f7c184cacda7 (diff)
doc: add important information about tx flood to release notesv0.11.0
-rw-r--r--doc/release-notes.md30
1 files changed, 30 insertions, 0 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md
index 7c707b08e1..28e49fb7ea 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -44,6 +44,36 @@ supported and may break as soon as the older version attempts to reindex.
This does not affect wallet forward or backward compatibility. There are no
known problems when downgrading from 0.11.x to 0.10.x.
+Important information
+======================
+
+Transaction flooding
+---------------------
+
+At the time of this release, the P2P network is being flooded with low-fee
+transactions. This causes a ballooning of the mempool size.
+
+If this growth of the mempool causes problematic memory use on your node, it is
+possible to change a few configuration options to work around this. The growth
+of the mempool can be monitored with the RPC command `getmempoolinfo`.
+
+One is to increase the minimum transaction relay fee `minrelaytxfee`, which
+defaults to 0.00001. This will cause transactions with fewer BTC/kB fee to be
+rejected, and thus fewer transactions entering the mempool.
+
+The other is to restrict the relaying of free transactions with
+`limitfreerelay`. This option sets the number of kB/minute at which
+free transactions (with enough priority) will be accepted. It defaults to 15.
+Reducing this number reduces the speed at which the mempool can grow due
+to free transactions.
+
+For example, add the following to `bitcoin.conf`:
+
+ minrelaytxfee=0.00005
+ limitfreerelay=5
+
+More robust solutions are being worked on for a follow-up release.
+
Notable changes
===============