CASSANDRA-21644 Fix concurrent SAI vector inserts failing once jvector's per-graph pool limit is exceeded - #5101
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…aph pool limit patch by Jeremiah Jordan; reviewed by XXX for CASSANDRA-21644
…ol limit is exceeded patch by Jeremiah Jordan; reviewed by XXX for CASSANDRA-21644
…urrent writers Review update: TrieMemtable and the locking ShardedSkipListMemtable serialize updates per shard, so when they have no more shards than jvector's per-builder limit there is nothing for the semaphore to bound. Add Memtable.limitsConcurrentWritesTo(int), false by default, and let OnHeapGraph leave the semaphore out when it is true. patch by Jeremiah Jordan; reviewed by XXX for CASSANDRA-21644
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Fix concurrent SAI vector inserts failing once jvector's per-graph pool limit is exceeded.