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  1. Infinispan
  2. ISPN-9412

HotRod Transaction Cache PESSIMISTIC locking mode is not locking the key in another transaction

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Details

    • Bug
    • Resolution: Won't Do
    • Critical
    • None
    • None
    • None
    • None

    Description

      I am expecting the thread 2 be blocked in `cache.put(k1, v1)` until thread 1 has committed the transaction

      According to the docs, using Pessimistic transactional cache, when cache.put(k1,v1) returns, k1 is locked and no other transaction running anywhere in the cluster can write to it. Reading k1 is still possible. The lock on k1 is released when the transaction completes (commits or rollbacks).

      Cache Configuration

            return new org.infinispan.configuration.cache.ConfigurationBuilder()
         .clustering().cacheMode(CacheMode.DIST_SYNC)
         .jmxStatistics().enable()
         .transaction()
            .cacheStopTimeout(0L)
            .transactionManagerLookup(new EmbeddedTransactionManagerLookup())
            .lockingMode(LockingMode.PESSIMISTIC)
            .locking().isolationLevel(IsolationLevel.REPEATABLE_READ)

      .build();

      Steps to reproduce

      Thread t1 = {
  tm.begin()
  cache.put(k1, v1)
  long operation like 1 minute
  tm.commit()
}

Thread t2 = {
   long operation like 15 seconds
   tm.begin()
   cache.put(k1, v1)
   tm.commit()
}

t1.start()
t2.start()

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        Issue Links

          is caused by

          Enhancement - An enhancement to or refactoring of existing functionality that is not configurable by an end user (typically a change made by an internal team that affects users) ISPN-9261 Hot Rod Lightweight Transaction (recovery)

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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              Unassigned Unassigned
              dlovison@redhat.com Diego Lovison
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              Dates

                Created:
                Updated:
                Resolved: