Github user davebshow commented on a diff in the pull request: https://github.com/apache/tinkerpop/pull/451#discussion_r82095012 --- Diff: gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/remote/DriverRemoteTraversalSideEffects.java --- @@ -54,22 +57,30 @@ public DriverRemoteTraversalSideEffects(final Client client, final UUID serverSi @Override public <V> V get(final String key) throws IllegalArgumentException { if (!sideEffects.containsKey(key)) { - // specify the ARGS_HOST so that the LoadBalancingStrategy is subverted and the connection is forced - // from the specified host (i.e. the host from the previous request as that host will hold the side-effects) - final RequestMessage msg = RequestMessage.build(Tokens.OPS_GATHER) - .addArg(Tokens.ARGS_SIDE_EFFECT, serverSideEffect) - .addArg(Tokens.ARGS_SIDE_EFFECT_KEY, key) - .addArg(Tokens.ARGS_HOST, host) - .processor("traversal").create(); - try { - final Result result = client.submitAsync(msg).get().one(); - sideEffects.put(key, null == result ? null : result.getObject()); - } catch (Exception ex) { - final Throwable root = ExceptionUtils.getRootCause(ex); - if (root.getMessage().equals("Could not find side-effects for " + serverSideEffect + ".")) - sideEffects.put(key, null); - else - throw new RuntimeException("Could not get keys", root); + if (!closed) { + // specify the ARGS_HOST so that the LoadBalancingStrategy is subverted and the connection is forced + // from the specified host (i.e. the host from the previous request as that host will hold the side-effects) + final RequestMessage msg = RequestMessage.build(Tokens.OPS_GATHER) + .addArg(Tokens.ARGS_SIDE_EFFECT, serverSideEffect) + .addArg(Tokens.ARGS_SIDE_EFFECT_KEY, key) + .addArg(Tokens.ARGS_HOST, host) + .processor("traversal").create(); + try { + final Result result = client.submitAsync(msg).get().one(); --- End diff -- Should this be `all` instead of `one`?
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