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July 6, 2022 11:14
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| jmap -histo:live 24339 | more | |
| num #instances #bytes class name (module) | |
| ------------------------------------------------------- | |
| 1: 227198660 12385906488 [B (java.base@11.0.13) | |
| 2: 142153505 4548912160 java.lang.String (java.base@11.0.13) | |
| 3: 14945809 4065260048 org.apache.hadoop.hdfs.protocol.DatanodeInfo | |
| WithStorage | |
| 4: 44837434 1434797888 io.trino.hadoop.$internal.com.google.protobu | |
| f.LiteralByteString | |
| 5: 3910752 1063724544 org.apache.hadoop.hdfs.protocol.DatanodeInfo | |
| WithStorage | |
| 6: 18864242 905483616 java.util.LinkedList (java.base@11.0.13) | |
| 7: 18813213 827394328 [Ljava.lang.String; (java.base@11.0.13) | |
| 8: 3532799 508723056 java.net.URI (java.base@11.0.13) | |
| 9: 2495060 439130560 org.apache.hadoop.hdfs.protocol.HdfsLocatedF | |
| ileStatus | |
| 10: 4981935 398554800 org.apache.hadoop.hdfs.protocol.LocatedBlock | |
| 11: 11732260 375432320 io.trino.hadoop.$internal.com.google.protobu | |
| f.LiteralByteString | |
| 12: 9963877 318844064 org.apache.hadoop.io.Text | |
| 13: 4981935 278988360 org.apache.hadoop.security.token.Token | |
| 14: 4821933 273979400 [Ljava.lang.Object; (java.base@11.0.13) | |
| 15: 4981939 239133088 [Lorg.apache.hadoop.fs.StorageType; | |
| 16: 4981936 239132936 [Lorg.apache.hadoop.hdfs.protocol.DatanodeIn | |
| foWithStorage; | |
| 17: 2477612 218029856 org.apache.hadoop.fs.BlockLocation | |
| 18: 631095 209928672 [D (java.base@11.0.13) | |
| 19: 4981935 199277400 org.apache.hadoop.hdfs.protocol.Block | |
| 20: 4366472 174658880 java.util.ArrayList (java.base@11.0.13) | |
| 21: 2494130 159624320 org.apache.hadoop.hdfs.protocol.LocatedBlocks | |
| 22: 4981935 159421920 org.apache.hadoop.hdfs.protocol.ExtendedBlock | |
| 23: 4849580 155186560 io.airlift.units.DataSize | |
| 24: 2495060 139723360 org.apache.hadoop.hdfs.protocol.FsPermissionExtension | |
| 25: 3048882 121955280 java.util.RegularEnumSet (java.base@11.0.13) | |
| 26: 636521 112027696 org.apache.hadoop.hdfs.protocol.HdfsLocatedFileStatus | |
| 27: 3303587 105714784 io.airlift.units.Duration | |
| 28: 1303584 104286720 org.apache.hadoop.hdfs.protocol.LocatedBlock | |
| 29: 444570 93350272 [Ljava.util.HashMap$Node; (java.base@11.0.13) | |
| 30: 264895 84766400 io.trino.operator.OperatorStats | |
| 31: 2607172 83429504 org.apache.hadoop.io.Text | |
| 32: 2471772 79143424 [Lorg.apache.hadoop.fs.BlockLocation; | |
| 33: 1303584 73000704 org.apache.hadoop.security.token.Token | |
| 34: 1036690 66348160 java.util.LinkedHashMap$Entry (java.base@11.0.13) | |
| 35: 2655487 63731688 org.apache.hadoop.fs.Path | |
| 36: 1305872 62681856 java.util.HashMap$Node (java.base@11.0.13) | |
| 37: 1303588 62572208 [Lorg.apache.hadoop.fs.StorageType; | |
| 38: 1303585 62572056 [Lorg.apache.hadoop.hdfs.protocol.DatanodeInfoWithStorage; | |
| 39: 2347583 56341992 java.util.Optional (java.base@11.0.13) | |
| 40: 632044 55619872 org.apache.hadoop.fs.BlockLocation | |
| 41: 127938 53350816 [I (java.base@11.0.13) | |
| 42: 1303584 52143360 org.apache.hadoop.hdfs.protocol.Block | |
| 43: 724113 46343232 java.util.HashMap (java.base@11.0.13) |
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jmap --heap --pid 24339
Attaching to process ID 24339, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 11.0.13+8
using thread-local object allocation.
Garbage-First (G1) GC with 43 thread(s)
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 64424509440 (61440.0MB)
NewSize = 1363144 (1.2999954223632812MB)
MaxNewSize = 38654705664 (36864.0MB)
OldSize = 5452592 (5.1999969482421875MB)
NewRatio = 2
SurvivorRatio = 8
MetaspaceSize = 21807104 (20.796875MB)
CompressedClassSpaceSize = 1073741824 (1024.0MB)
MaxMetaspaceSize = 17592186044415 MB
G1HeapRegionSize = 33554432 (32.0MB)
Heap Usage:
G1 Heap:
regions = 1920
capacity = 64424509440 (61440.0MB)
used = 43059670496 (41064.90182495117MB)
free = 21364838944 (20375.098175048828MB)
66.83740531404813% used
G1 Young Generation:
Eden Space:
regions = 315
capacity = 16844324864 (16064.0MB)
used = 10569646080 (10080.0MB)
free = 6274678784 (5984.0MB)
62.74900398406375% used
Survivor Space:
regions = 1
capacity = 33554432 (32.0MB)
used = 33554432 (32.0MB)
free = 0 (0.0MB)
100.0% used
G1 Old Generation:
regions = 988
capacity = 38386270208 (36608.0MB)
used = 32456469984 (30952.901824951172MB)
free = 5929800224 (5655.098175048828MB)
84.5522886389619% used