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https://issues.apache.org/jira/browse/DISPATCH-344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15824184#comment-15824184
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Ganesh Murthy commented on DISPATCH-344:
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Ran the script to execute qdstat -m 1000 times and the memory of the router
stayed at 548076. This problem might have been fixed with all the other mem
leak fixes we have done in master. Marking this issue as fixed.
> memory growth after repeated calls from qdstat -m
> -------------------------------------------------
>
> Key: DISPATCH-344
> URL: https://issues.apache.org/jira/browse/DISPATCH-344
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Routing Engine
> Affects Versions: 0.6.0
> Reporter: michael goulish
> Assignee: Ganesh Murthy
> Fix For: 0.8.0
>
>
> 0. version of dispatch code is 0.6.0 RC3
> 1. bring up a router
> 2. do not attach any clients, except...
> 3. ...repeatedly invoke qdstat -m on the router
> result:
> After 1000 calls from "qdstat -m", top shows that router memory has grown by
> 4947968 bytes. The output from "qdstat -m" accounts for about 63% of that,
> or 3144448 bytes.
> Here are the data types that increased, according to qdstat, ordered from
> largest to smallest.
> Um. This table looked really nice when it was in a fixed-width font.....
> {noformat}
> type size total total increase
> increase before after structs bytes
>
> =========================================================================================
> qd_log_entry_t 2104 112 1040 928 1952512
> qd_buffer_t 536 80 1120 1040 557440
> qd_field_iterator_t 128 192 1280 1088 139264
> qdr_delivery_t 136 64 512 448 60928
> qdr_connection_t 216 64 320 256 55296
> qdr_field_t 40 192 1280 1088 43520
> qd_connection_t 224 64 256 192 43008
> qd_message_content_t 640 16 80 64 40960
> qd_message_t 128 192 512 320 40960
> qdpn_connector_t 600 16 64 48 28800
> qdr_general_work_t 64 64 512 448 28672
> qdr_connection_work_t 56 64 512 448 25088
> qd_composite_t 112 64 256 192 21504
> qdr_link_t 264 16 80 64 16896
> qd_composed_field_t 64 64 256 192 12288
> qdr_terminus_t 64 64 256 192 12288
> qdr_delivery_ref_t 24 64 512 448 10752
> qdr_link_ref_t 24 64 512 448 10752
> qd_parsed_field_t 80 128 256 128 10240
> qdr_action_t 160 256 320 64 10240
> qd_link_t 48 64 256 192 9216
> qdr_error_t 24 0 320 320 7680
> qd_deferred_call_t 32 64 256 192 6144
> {noformat}
> grand total increase from qdstat: 3144448
> grand total increase from top: 4947968
> Here is the script I used....
> This input window is breaking some lines. >:-(
> #! /bin/bash
> echo "NOTE: router should already be running."
> INSTALL_ROOT=${SHACKLETON_ROOT}/install
> PROTON_INSTALL_DIR=${INSTALL_ROOT}/proton
> DISPATCH_INSTALL_DIR=${INSTALL_ROOT}/dispatch
> QDSTAT=${DISPATCH_INSTALL_DIR}/bin/qdstat
> export
> LD_LIBRARY_PATH=${DISPATCH_INSTALL_DIR}/lib64:${PROTON_INSTALL_DIR}/lib64
> export
> PYTHONPATH=${DISPATCH_INSTALL_DIR}/lib/qpid-dispatch/python:${DISPATCH_INSTALL_DIR}/lib/python2.7/site-packages:${PROTON_INSTALL_DIR}/lib64/proton/bindings/python
> ROUTER_PID=`ps -aef | grep qdrouterd | grep -v grep | awk '{print $2}'`
> count=1
> while [ $count -lt 1001 ]
> do
> echo "==========================================="
> echo "TEST $count"
> echo "==========================================="
> count=$(( $count + 1 ))
> top -b -n 1 -p ${ROUTER_PID}
> ${QDSTAT} -m
> sleep 3
> done
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