Vladimir Ozerov created IGNITE-2834:
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Summary: IGFS: Introduce optional co-location of metadata.
Key: IGNITE-2834
URL: https://issues.apache.org/jira/browse/IGNITE-2834
Project: Ignite
Issue Type: Task
Components: IGFS
Affects Versions: 1.5.0.final
Reporter: Vladimir Ozerov
Fix For: 1.6
*Description*
IGFS meta manager heavily relies on transactions in REPLICATED cache. Some
transactions operate on more than 1 keys. As key affinity is not specified at
the moment, different Ignite nodes host different primary keys. As a result,
transaction on multiple keys might lead to relatively big number of network
requests during 2PC.
*Solution*
If we co-located all metadata on a single node, transaction commit will require
less network trips, thus decreasing latency and contention.
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