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-rw-r--r--configdefinitions/src/vespa/zookeeper-server.def5
1 files changed, 5 insertions, 0 deletions
diff --git a/configdefinitions/src/vespa/zookeeper-server.def b/configdefinitions/src/vespa/zookeeper-server.def
index 723246daab0..b8ff6494764 100644
--- a/configdefinitions/src/vespa/zookeeper-server.def
+++ b/configdefinitions/src/vespa/zookeeper-server.def
@@ -42,3 +42,8 @@ server[].id int
server[].hostname string
server[].quorumPort int default=2182
server[].electionPort int default=2183
+
+# Needed when upgrading from ZooKeeper 3.4 to 3.5, see https://issues.apache.org/jira/browse/ZOOKEEPER-3056,
+# and in general where there is a zookeeper ensemble running that has had few transactions.
+# TODO: Consider setting this to false by default (and override where appropriate)
+trustEmptySnapshot bool default=true