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Paolo Invernizzi
Joined: 20 Jul 2006
Posts: 17
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 Posted: Thu Jul 20, 2006 6:55 am Post subject: strange strange strange problem... cluster.qos.Cluster |
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I've a strange problem with mango (head) and DMD 0.163 (windows)
The name of the node, when loaded from cluster.properties, must be duped... if not, the HashMap (but also the standard D AA) reports the Node key (and the node name) as "cast_t"!
It's the second time that this bite me, char[].dup solved the problem. BUT, I cannot understand why... hints are welcome!
Before the patch...
| Code: |
10 INFO client.uno - cluster config: node = edoras
10 INFO client.uno - cluster config: multicast_port = 3333
11 INFO client.uno - cluster config: multicast_prefix = 225
11 INFO client.uno - cluster config: multicast_ttl = 1
11 INFO client.uno - creating bulletin consumer for channel 'cluster.server.advertise'
15 TRACE client.uno - discovering active cluster servers ...
18 ERROR client.uno - BulletinConsumer: Attempt to enable unknown cluster node 'edoras'
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after the patch...
| Code: |
33 INFO client.uno - cluster config: node = edoras
33 INFO client.uno - cluster config: multicast_port = 3333
33 INFO client.uno - cluster config: multicast_prefix = 225
33 INFO client.uno - cluster config: multicast_ttl = 1
33 INFO client.uno - creating bulletin consumer for channel 'cluster.server.advertise'
37 TRACE client.uno - discovering active cluster servers ...
42 TRACE client.uno - enabling node 'edoras' on port 81
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Index: Cluster.d
===================================================================
--- Cluster.d (revision 922)
+++ Cluster.d (working copy)
@@ -164,7 +164,7 @@
{
logger.info ("cluster config: "~name~" = "~value);
if (name == "node")
- nodeSet.addNode (new Node (logger, value));
+ nodeSet.addNode (new Node (logger, value.dup));
else
if (name == "multicast_port")
groupPort = cast(int) Integer.parse (value);
---
Paolo |
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kris
Joined: 27 Mar 2004
Posts: 1494
Location: South Pacific
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| Posted: Thu Jul 20, 2006 2:21 pm Post subject: |
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I suspect you found a bug. Will update with your patch ... thx!
This happened because the content passed around is simply sliced from an input buffer (not allocated and copied). The 'value' slice would end up being reused for something else, thus a .dup is necessary. By default, most Mango modules avoid heap-activity where possible, so sometimes one has to be aware of that when stashing something away (like this instance). |
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