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@arunmahadevan guided me to how Storm aggregates latencies, https://github.com/hortonworks/storm/blob/HDF-3.1-maint/storm-core/src/clj/org/apache/storm/stats.clj#L384
```
(defn product-or-0
[& …
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Hi,
I'm running into problems using buildozer on a simple example (and more complex ones as well). Specifically, I'm trying to run the example form [here](https://kivyspacegame.wordpress.com/2014/06/…
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Reading from ElasticSearch is not for spouts only. One could use ES bolt to enrich input tuple with data stored in ES. For example given an id emit the document that matches that id. In its most gener…
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Using:
```
http.selfhttps2http yes
```
and authenticating with VOMS extensions, e.g.:
```
VOMS data - user: '/DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=ddmadmin/CN=531497/CN=Robot: ATLAS Data …
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Since supervisors publish their hostname to nimbus, and the hostname in PODs are the Pod name which is unreachable with the current DNS system. If a topology was deployed to nimbus, it would fail sin…
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I will start with 2 basic questions which I will accompany with our use-case example.
1) How to have long running connection on BlockingConnection?
(and answer: "Use another Adapter" is not an answer…
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We already investigate the limitations of microstream in current stream systems such as Storm and REEF.
We found that we also have to perform a similar investigation to [Apache Spark Streaming](http:…
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## 现象
每当我重启tomcat的时候,就会报下面的warning。
```java
2016-10-18 14:30:09.470 INFO DubboShutdownHook ZookeeperRegistry:485 - [DUBBO] Destroy registry:zookeeper://172.21.134.7:2005/com.alibaba.dubbo.reg…
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I am using CentOS 7 with 1 master and 2 slave nodes. Configuration standard. I changed the IPs in the static inventory file.
When starting the blueprint installation I get always this error
`T…
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We're getting ConcurrentModificationExceptions on Metadata instances while they're being serialized by Kryo.
According to the Storm docs, all values emitted in a tuple need to be immutable. This bug …