Github user pczb commented on a diff in the pull request:
https://github.com/apache/storm/pull/1934#discussion_r100485119
--- Diff: storm-core/src/jvm/org/apache/storm/metric/SystemBolt.java ---
@@ -85,14 +87,15 @@ public Object getValueAndReset() {
}
}
+ @SuppressWarnings({ "unchecked", "rawtypes" })
@Override
- public void prepare(final Map stormConf, TopologyContext context,
OutputCollector collector) {
- if(_prepareWasCalled &&
!"local".equals(stormConf.get(Config.STORM_CLUSTER_MODE))) {
+ public void prepare(final Map topoConf, TopologyContext context,
OutputCollector collector) {
+ if(_prepareWasCalled &&
!"local".equals(topoConf.get(Config.STORM_CLUSTER_MODE))) {
throw new RuntimeException("A single worker should have 1
SystemBolt instance.");
}
_prepareWasCalled = true;
--- End diff --
is storm prepare method thread safe?
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