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From Steve Malenfant <smalenf...@gmail.com>
Subject Memory usage - Virtual Machine - 7.1.x
Date Mon, 10 Sep 2018 13:21:44 GMT
Ever since we upgraded to 6.x or 7.x, it seems like we have issues with
memory utilization climbing over time in a 4GB VM. It takes in average
about 5 days before it starts swapping.

Current version: 7.1.4

There is only a few requests getting to those VMs and they are creating
quite a problem on the VM hosts due to excessive swapping (IO). Most of
those requests, if not all are using the astats_over_http plugin for
Traffic Control.

I've condensed the memory dump just to show what's being used.
Seems like hdrStrHeap seems to be using quite a bit of memory and keeps
increasing over time.

Is there anything specific I would need to look into?

-----------------------------------------------------------------------------------------
     Allocated      |        In-Use      | Type Size  |   Free List Name
--------------------|--------------------|------------|----------------------------------
            2097152 |                  0 |      32768 |
memory/ioBufAllocator[8]
             524288 |                  0 |       8192 |
memory/ioBufAllocator[6]
           96993280 |           96661504 |       4096 |
memory/ioBufAllocator[5]
              16384 |                128 |        128 |
memory/ioBufAllocator[0]
              73728 |              45312 |         96 |
memory/eventAllocator
            1407600 |            1399440 |         80 |
memory/mutexAllocator
              24576 |              22016 |         64 |
memory/ioBlockAllocator
            1150560 |            1145328 |         48 |
memory/ioDataAllocator
              65280 |              62400 |        240 | memory/ioAllocator
              97760 |              25568 |        752 |
memory/netVCAllocator
             114400 |                  0 |        880 |
memory/sslNetVCAllocator
              67712 |              33856 |      33856 |
memory/dnsBufAllocator
             163840 |                  0 |       1280 |
memory/dnsEntryAllocator
               4096 |                 16 |         16 |
memory/expiryQueueEntry
               8192 |                 64 |         64 |
memory/refCountCacheHashingValueAllocator
             296960 |               2320 |       2320 |
memory/hostDBContAllocator
         1162870784 |         1162797056 |       2048 | memory/hdrStrHeap
         1162870784 |         1162862592 |       2048 | memory/hdrHeap
              24576 |               6144 |        192 |
memory/httpServerSessionAllocator
            1990656 |                  0 |       7776 |
memory/httpSMAllocator
             114688 |              30464 |        896 |
memory/http1ClientSessionAllocator
              24576 |               6624 |         96 |
memory/INKContAllocator
               4096 |                224 |         32 |
memory/apiHookAllocator
             262144 |                  0 |       1024 | memory/ArenaBlock
         2431268112 |         2425101056 |            | TOTAL
-----------------------------------------------------------------------------------------

Steve

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