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https://reviews.apache.org/r/48050/
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Review request for atlas and Suma Shivaprasad.
Bugs: ATLAS-503
https://issues.apache.org/jira/browse/ATLAS-503
Repository: atlas
Description
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The patch implements retries in HBaseKeyColumnValueStore while acquiring locks
within a JVM using the LocalLockMediator. The number of retries is configured
using atlas.graph.storage.lock.retries. As described above, the value for this
property should be equal to the desired level of parallelism. For e.g. if this
is set to 10, it means that 10 concurrent operations can proceed to acquire
locks on the same store, key and column.
Diffs
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titan/src/main/java/com/thinkaurelius/titan/diskstorage/hbase/HBaseKeyColumnValueStore.java
b4dc12e
titan/src/test/java/com/thinkaurelius/titan/diskstorage/hbase/HBaseKeyColumnValueStoreTest.java
PRE-CREATION
Diff: https://reviews.apache.org/r/48050/diff/
Testing
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* Existing UTs and new UTs added here.
* Also set this configuration to 10 retries and verified that 10 concurrent
users from JMeter can create traits in parallel.
Thanks,
Hemanth Yamijala
