[JBoss JIRA] Created: (ISPN-1294) Run local operations from a DistributedExecutor in parallel
by Sanne Grinovero (JIRA)
Run local operations from a DistributedExecutor in parallel
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Key: ISPN-1294
URL: https://issues.jboss.org/browse/ISPN-1294
Project: Infinispan
Issue Type: Enhancement
Reporter: Sanne Grinovero
Assignee: Manik Surtani
Fix For: 5.1.0.ALPHA1
Looking into
{code}org.infinispan.distexec.DefaultExecutorService.invokeLocally(DistributedRunnableFuture<T>){code}
It seems that the operations are performed in the same thread as the invoker; if we happen to send multiple operations to the local node, these are performed in sequence, and in sequence with the remote operations. We should use an Executor for the local tasks.
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12 years, 3 months
[JBoss JIRA] Created: (ISPN-78) Large object support
by Manik Surtani (JIRA)
Large object support
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Key: ISPN-78
URL: https://jira.jboss.org/jira/browse/ISPN-78
Project: Infinispan
Issue Type: Feature Request
Components: Core API
Reporter: Manik Surtani
Assignee: Manik Surtani
Fix For: 5.0.0.GA
if each VM is allocated a 2GB heap and you have a 100 nodes in a grid with 1 redundant copy for each key, you have a theoretical addressable heap of 100GB. But you are limited by (half) the heap of a single VM per entry, since entries are stored whole.
E.g., cache.put(k, my2GBObject) will fail since you need at least 2GB for the object + another 2GB for its serialized form.
This gets worse when you try cache.put(k, my10GBObject). This *should* be possible if we have a theoretical 100GB heap.
Potential solutions here are to fragment large objects, and store each fragment under separate keys. Another approach would be to directly stream objects to disk. etc. Needs thought and design, possibly a separate API to prevent 'pollution" of the more simplistic API. (JumboCache?)
Re: fragmenting, issues to overcome:
How many chunks to fragment into? Max size of each key could be configured, but how do we determine the size of an Object? VM instrumentation? Or perhaps the JumboCache only stores byte[]'s?
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12 years, 3 months
[JBoss JIRA] (ISPN-1865) Update indexes only when needed
by Mathieu Lachance (JIRA)
Mathieu Lachance created ISPN-1865:
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Summary: Update indexes only when needed
Key: ISPN-1865
URL: https://issues.jboss.org/browse/ISPN-1865
Project: Infinispan
Issue Type: Enhancement
Components: Querying
Affects Versions: 5.1.1.FINAL
Reporter: Mathieu Lachance
Assignee: Sanne Grinovero
// put in cache a value with 2 field, one indexed and one not indexed.
Value value = new Value();
value.setNonIndexedFieldValue(123);
value.setIndexedFieldValue(456);
cache.put("key", value);
// later...
// get back value from cache and update the not indexed field
Value value = cache.get("key");
value.setNonIndexedFieldValue(789);
cache.put("key", value);
The second put operation will trigger index to update even tough it hasn't changed.
Sanne suggested :
" Thinking about it, there might be some situations in which we can detect it, for example if the put is going to carry a valid return value then we could compare values in string form.. nice, please open an improvement request on JIRA!"
See https://community.jboss.org/thread/195303 for complete reference
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12 years, 3 months