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https://issues.apache.org/jira/browse/STORM-885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15018676#comment-15018676
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ASF GitHub Bot commented on STORM-885:
--------------------------------------
Github user d2r commented on a diff in the pull request:
https://github.com/apache/storm/pull/838#discussion_r45511278
--- Diff: storm-core/src/jvm/backtype/storm/messaging/netty/Client.java ---
@@ -243,7 +243,7 @@ public void send(Iterator<TaskMessage> msgs) {
if (closing) {
int numMessages = iteratorSize(msgs);
LOG.error("discarding {} messages because the Netty client to
{} is being closed", numMessages,
- dstAddressPrefixedName);
+ dstAddressPrefixedName);
--- End diff --
The only changes to this file are white-space.
> Heartbeat Server (Pacemaker)
> ----------------------------
>
> Key: STORM-885
> URL: https://issues.apache.org/jira/browse/STORM-885
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-core
> Reporter: Robert Joseph Evans
> Assignee: Kyle Nusbaum
>
> Large highly connected topologies and large clusters write a lot of data into
> ZooKeeper. The heartbeats, that make up the majority of this data, do not
> need to be persisted to disk. Pacemaker is intended to be a secure
> replacement for storing the heartbeats without changing anything within the
> heartbeats. In the future as more metrics are added in, we may want to look
> into switching it over to look more like Heron, where a metrics server is
> running for each node/topology. And can be used to aggregate/per-aggregate
> them in a more scalable manor.
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