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Fix C client SSL test hang on long-hostname runners (cap cert CN at 64 chars) #147

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Merged
arkmish merged 1 commit into from
Jun 8, 2026
Merged

Fix C client SSL test hang on long-hostname runners (cap cert CN at 64 chars) #147

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7 changes: 7 additions & 0 deletions zookeeper-client/zookeeper-client-c/ssl/gencerts.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,13 @@ FQDN=`hostname -f`
FQDN=${1:-$FQDN}
FQDN=${FQDN:-"zookeeper.apache.org"}

# An X.509 CommonName is limited to 64 characters (ASN.1 upper bound). Hosts with
# long fully-qualified names -- e.g. Kubernetes pods or CI runners -- otherwise make
# `openssl req` fail with "string too long:maxsize=64", which leaves no certificates
# generated, so the test server never opens its secure port and the SSL client tests
# hang. Truncate the CN to stay within the limit.
FQDN=${FQDN:0:64}

# Generate the root key
openssl genrsa -out rootkey.pem 2048

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