I posted this on Stack Overflow a while back, but this is probably a better
place for the question. It seems like Ignite does not return the cache size
metrics for a cache in local mode. The code I used to test this in Ignite
2.6 is:
IgniteConfiguration igniteConfig = new IgniteConfiguration();
CacheConfiguration cacheConfig = new CacheConfiguration("testCache");
cacheConfig.setStatisticsEnabled(true);
igniteConfig.setCacheConfiguration(cacheConfig);
cacheConfig.setCacheMode(CacheMode.LOCAL);
try (Ignite ignite = Ignition.start(igniteConfig)) {
IgniteCache cache = ignite.<String,
String>getOrCreateCache(cacheConfig.getName());
cache.put("key", "val");
cache.put("key2", "val2");
cache.remove("key2");
System.out.println(cache.localMetrics());
}
I get:
CacheMetricsSnapshot [reads=0, puts=2, hits=0, misses=0, txCommits=0,
txRollbacks=0, evicts=0, removes=1, putAvgTimeNanos=8054.916,
getAvgTimeNanos=0.0, rmvAvgTimeNanos=3732.072, commitAvgTimeNanos=0.0,
rollbackAvgTimeNanos=0.0, cacheName=testCache, offHeapGets=0, offHeapPuts=0,
offHeapRemoves=0, offHeapEvicts=0, offHeapHits=0, offHeapMisses=0,
offHeapEntriesCnt=1, heapEntriesCnt=0, offHeapPrimaryEntriesCnt=1,
offHeapBackupEntriesCnt=1, offHeapAllocatedSize=0, size=0, keySize=0,
isEmpty=false, dhtEvictQueueCurrSize=-1, txThreadMapSize=0, txXidMapSize=0,
txCommitQueueSize=0, txPrepareQueueSize=0, txStartVerCountsSize=0,
txCommittedVersionsSize=0, txRolledbackVersionsSize=0, txDhtThreadMapSize=0,
txDhtXidMapSize=-1, txDhtCommitQueueSize=0, txDhtPrepareQueueSize=0,
txDhtStartVerCountsSize=0, txDhtCommittedVersionsSize=-1,
txDhtRolledbackVersionsSize=-1, isWriteBehindEnabled=false,
writeBehindFlushSize=-1, writeBehindFlushThreadCnt=-1,
writeBehindFlushFreq=-1, writeBehindStoreBatchSize=-1,
writeBehindTotalCriticalOverflowCnt=-1, writeBehindCriticalOverflowCnt=-1,
writeBehindErrorRetryCnt=-1, writeBehindBufSize=-1, totalPartitionsCnt=0,
rebalancingPartitionsCnt=0, keysToRebalanceLeft=0, rebalancingKeysRate=0,
rebalancingBytesRate=0, rebalanceStartTime=-1, rebalanceFinishTime=-1,
rebalanceClearingPartitionsLeft=0, keyType=java.lang.Object,
valType=java.lang.Object, isStoreByVal=true, isStatisticsEnabled=true,
isManagementEnabled=false, isReadThrough=false, isWriteThrough=false,
isValidForReading=true, isValidForWriting=true]
Which shows that, put & remove metrics seem to be working, but size is 0.
I've tried both cache.metrics().getSize() and cache.localMetrics().getSize()
but they seem to give the same result. If I change the cache mode to
REPLICATED or PARTITIONED then the cache size is correct.
--
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