Apologies as this is a long e-mail. I tried to include all the information
to help troubleshoot the issue.

I have a lab setup with  a vagrant box to test.: CentOS Linux release
7.7.1908 (Core)

httpd-2.4.6-90.el7
tomcat-connectors-1.2.44-src

The only changes I made to the config from default install are as follows

#*************************************************
FILE: /etc/httpd/conf/httpd.conf

#test-ssi
<Location /test-ssi/ >
   Options +Includes
   AddHandler server-parsed .shtml
</Location>

#*************************************************
FILE: /etc/httpd/conf/workers.properties

This file is currently blank.

#*************************************************
FILE: /etc/httpd/conf.d/mod_jk.conf

# Load mod_jk module
# Specify the filename of the mod_jk lib
#LoadModule jk_module modules/mod_jk.so

<IfModule jk_module>

    # Where to find workers.properties
    JkWorkersFile conf/workers.properties

    # Where to put jk logs
    JkLogFile logs/mod_jk.log

    # Set the jk log level [debug/error/info]
    #JkLogLevel info
    JkLogLevel trace

    # Select the log format
    JkLogStampFormat  "[%a %b %d %H:%M:%S %Y]"

    # JkOptions indicates to send SSK KEY SIZE
    JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories

    # JkRequestLogFormat
    JkRequestLogFormat "%w %V %T"

    # Mount your applications
    # The default setting only sends Java application data to mod_jk.
    # Use the commented-out line to send all URLs through mod_jk.
    # JkMount /* loadbalancer
    # JkMount /application/* loadbalancer
    #JkMountFile conf.d/uriworkermap.properties

    # Add shared memory.
    # This directive is present with 1.2.10 and
    # later versions of mod_jk, and is needed for
    # for load balancing to work properly
    JkShmFile logs/jk.shm

    # Should mod_jk send SSL information (default is On)
    JkExtractSSL On
    # What is the indicator for SSL (default is HTTPS)
    JkHTTPSIndicator HTTPS
    # What is the indicator for SSL session (default is SSL_SESSION_ID)
    JkSESSIONIndicator SSL_SESSION_ID
    # What is the indicator for client SSL cipher suit (default is
SSL_CIPHER)
    JkCIPHERIndicator SSL_CIPHER
    # What is the indicator for the client SSL certificated? (default is
SSL_CLIENT_CERT)
    JkCERTSIndicator SSL_CLIENT_CERT

    # Add jkstatus for managing runtime data
    <Location /jkmanager>
        Order deny,allow
        Deny from all
        Allow from localhost 192.168.19.54 192.168.19.52
    </Location>

</IfModule>

#*************************************************
FILE: /etc/httpd/conf.modules.d/02-mod_jk.conf

# This file configures the mod_jk modules:
LoadModule jk_module modules/mod_jk.so

#*************************************************
SSI Structure modeled after a previously working customer site.

[vagrant@WEBSRV test-ssi]$ tree /var/www/html/test-ssi
/var/www/html/test-ssi
├── includes
│   ├── footer.html
│   └── header.html
└── index.shtml

#*************************************************
FILE: /var/www/html/test-ssi/index.shtml

<html>
  <head>
      <title>SSI Test stuff</title>
  </head>
  <body>
      <!--#include file="includes/header.html" -->
        <div>
      <!-- Page content goes here   -->
        </div>
      <!--#include file="includes/footer.html" -->
  </body>
</html>

#*************************************************
When I load index.shtml in the browser I get the following page:

[an error occurred while processing this directive]
[an error occurred while processing this directive]

#*************************************************
error_log

[Mon Sep 30 15:04:03.634861 2019] [include:error] [pid 3906] [client
10.211.55.42:37042] unable to include "includes/header.html" in parsed file
/var/www/html/test-ssi/index.shtml, subrequest setup returned 404
[Mon Sep 30 15:04:03.634907 2019] [include:error] [pid 3906] [client
10.211.55.42:37042] unable to include "includes/footer.html" in parsed file
/var/www/html/test-ssi/index.shtml, subrequest setup returned 404

#*************************************************
If I reconfigure the SSI structure as follows the SSI works:

/var/www/html/test-ssi
├── footer.html
├── header.html
└── index.shtml

FILE: /var/www/html/test-ssi/index.shtml

<html>
  <head>
      <title>SSI Test stuff</title>
  </head>
  <body>
      <!--#include file="header.html" -->
        <div>
      <!-- Page content goes here   -->
        </div>
      <!--#include file="footer.html" -->
  </body>
</html>

It seems like mod_include can not find resources in sub directories


#*************************************************
FILE: /var/log/httpd/mod_jk.log. (257 lines. happy reading)

[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_set_time_fmt::jk_util.c (487): Pre-processed log time stamp format is
'[%a %b %d %H:%M:%S %Y]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (665): JkOption 'ForwardURICompat' set in server
'127.0.0.1'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (673): JkOption 'ForwardURIEscaped' set in server
'127.0.0.1'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (697): JkOption 'ForwardKeySize' set in server
'127.0.0.1' (default)
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_alloc::jk_uri_worker_map.c (216): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_open::jk_uri_worker_map.c (892): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_open::jk_uri_worker_map.c (898): rule map size is 0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (174): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (178): uri map dump after map
open: id=0, index=0 file='(null)' reject_unsafe=0 reload=60 modified=0
checked=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 0: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 1: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (207): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_open::jk_uri_worker_map.c (958): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_alloc::jk_uri_worker_map.c (255): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_set_time_fmt::jk_util.c (487): Pre-processed log time stamp format is
'[%a %b %d %H:%M:%S %Y]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (665): JkOption 'ForwardURICompat' set in server
'127.0.0.1 [_default_:443]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (673): JkOption 'ForwardURIEscaped' set in server
'127.0.0.1 [_default_:443]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (697): JkOption 'ForwardKeySize' set in server
'127.0.0.1 [_default_:443]' (default)
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug] init_jk::mod_jk.c
(3518): Setting default connection pool max size to 1
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_map_resolve_references::jk_map.c (775): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_map_resolve_references::jk_map.c (783): Checking for references with
prefix worker. with wildcard (recursion 1)
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_map_resolve_references::jk_map.c (839): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_shm_calculate_size::jk_shm.c (132): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_shm_calculate_size::jk_shm.c (143): JK_SHM_SLOT_SIZE defined as 384,
need at least 384
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_shm_calculate_size::jk_shm.c (177): shared memory will contain 1 ajp
workers and 0 lb workers with 0 members
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_shm_calculate_size::jk_shm.c (184): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
do_shm_open::jk_shm.c (622): Truncated shared memory to 1024
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
do_shm_open::jk_shm.c (669): Initialized shared memory
/etc/httpd/logs/jk.shm.3905 size=1024 free=384 addr=0x7f76d1839000
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (532): Opened shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (534): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_open::jk_worker.c (55): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_map_dump::jk_map.c (599): Dump of map 2: 'ServerRoot' -> '/etc/httpd'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
build_worker_map::jk_worker.c (244): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
build_worker_map::jk_worker.c (250): creating worker ajp13
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_create_worker::jk_worker.c (130): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
wc_create_worker::jk_worker.c (154): about to create instance ajp13 of ajp13
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp13_worker_factory::jk_ajp13_worker.c (80): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_worker_factory::jk_ajp_common.c (3165): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_worker_factory::jk_ajp_common.c (3219): ajp worker 'ajp13' type=2
created
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_worker_factory::jk_ajp_common.c (3222): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp13_worker_factory::jk_ajp13_worker.c (92): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
wc_create_worker::jk_worker.c (167): about to validate and init ajp13
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
validate::jk_ajp13_worker.c (35): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_validate::jk_ajp_common.c (2814): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_validate::jk_ajp_common.c (2863): worker ajp13 target is
'localhost:8009'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_resolve::jk_connect.c (406): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_resolve::jk_connect.c (599): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_ajp_push::jk_ajp_common.c (1188): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_ajp_push::jk_ajp_common.c (1191): syncing shm for ajp worker 'ajp13'
from mem (0->0) [0->0]
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_ajp_push::jk_ajp_common.c (1239): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_validate::jk_ajp_common.c (2908): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
validate::jk_ajp13_worker.c (37): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
init::jk_ajp13_worker.c (47): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_init::jk_ajp_common.c (2974): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3077): (ajp13) setting endpoint options:
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3081): keepalive:              0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3085): socket timeout:         0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3089): socket connect timeout: 0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3093): buffer size:            0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3097): pool timeout:           0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3101): ping timeout:           10000
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3105): connect timeout:        0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3109): reply timeout:          0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3113): prepost timeout:        0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3117): recovery options:       0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3121): retries:                2
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3125): max packet size:        8192
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3129): retry interval:         100
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3133): busy limit:         0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_create_endpoint_cache::jk_ajp_common.c (2924): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_create_endpoint_cache::jk_ajp_common.c (2933): (ajp13) setting
connection pool size to 1 with min 1 and acquire timeout 200
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_create_endpoint_cache::jk_ajp_common.c (2962): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_init::jk_ajp_common.c (3155): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
init::jk_ajp13_worker.c (50): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_create_worker::jk_worker.c (206): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
build_worker_map::jk_worker.c (281): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_open::jk_worker.c (93): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [info] init_jk::mod_jk.c
(3580): mod_jk/1.2.44 initialized
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_ext::jk_uri_worker_map.c (617): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (174): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (178): uri map dump after
extension stripping: id=1, index=0 file='(null)' reject_unsafe=0 reload=60
modified=0 checked=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 0: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 1: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (207): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_ext::jk_uri_worker_map.c (633): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_switch::jk_uri_worker_map.c (597): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_switch::jk_uri_worker_map.c (602): Switching uri worker map
from index 0 to index 1
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_switch::jk_uri_worker_map.c (609): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_shm_close::jk_shm.c (745): Closed shared memory
/etc/httpd/logs/jk.shm.3905 childs=1
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_set_time_fmt::jk_util.c (487): Pre-processed log time stamp format is
'[%a %b %d %H:%M:%S %Y]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (665): JkOption 'ForwardURICompat' set in server
'127.0.0.1'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (673): JkOption 'ForwardURIEscaped' set in server
'127.0.0.1'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (697): JkOption 'ForwardKeySize' set in server
'127.0.0.1' (default)
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_alloc::jk_uri_worker_map.c (216): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_open::jk_uri_worker_map.c (892): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_open::jk_uri_worker_map.c (898): rule map size is 0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (174): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (178): uri map dump after map
open: id=0, index=0 file='(null)' reject_unsafe=0 reload=60 modified=0
checked=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 0: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 1: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (207): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_open::jk_uri_worker_map.c (958): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_alloc::jk_uri_worker_map.c (255): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_set_time_fmt::jk_util.c (487): Pre-processed log time stamp format is
'[%a %b %d %H:%M:%S %Y]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (665): JkOption 'ForwardURICompat' set in server
'127.0.0.1 [_default_:443]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (673): JkOption 'ForwardURIEscaped' set in server
'127.0.0.1 [_default_:443]'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
dump_options::mod_jk.c (697): JkOption 'ForwardKeySize' set in server
'127.0.0.1 [_default_:443]' (default)
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug] init_jk::mod_jk.c
(3518): Setting default connection pool max size to 1
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_map_resolve_references::jk_map.c (775): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_map_resolve_references::jk_map.c (783): Checking for references with
prefix worker. with wildcard (recursion 1)
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_map_resolve_references::jk_map.c (839): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_shm_calculate_size::jk_shm.c (132): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_shm_calculate_size::jk_shm.c (143): JK_SHM_SLOT_SIZE defined as 384,
need at least 384
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_shm_calculate_size::jk_shm.c (177): shared memory will contain 1 ajp
workers and 0 lb workers with 0 members
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_shm_calculate_size::jk_shm.c (184): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
do_shm_open::jk_shm.c (622): Truncated shared memory to 1024
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
do_shm_open::jk_shm.c (669): Initialized shared memory
/etc/httpd/logs/jk.shm.3905 size=1024 free=384 addr=0x7f76d1838000
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (532): Opened shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (534): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_open::jk_worker.c (55): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_map_dump::jk_map.c (599): Dump of map 2: 'ServerRoot' -> '/etc/httpd'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
build_worker_map::jk_worker.c (244): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
build_worker_map::jk_worker.c (250): creating worker ajp13
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_create_worker::jk_worker.c (130): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
wc_create_worker::jk_worker.c (154): about to create instance ajp13 of ajp13
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp13_worker_factory::jk_ajp13_worker.c (80): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_worker_factory::jk_ajp_common.c (3165): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_worker_factory::jk_ajp_common.c (3219): ajp worker 'ajp13' type=2
created
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_worker_factory::jk_ajp_common.c (3222): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp13_worker_factory::jk_ajp13_worker.c (92): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
wc_create_worker::jk_worker.c (167): about to validate and init ajp13
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
validate::jk_ajp13_worker.c (35): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_validate::jk_ajp_common.c (2814): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_validate::jk_ajp_common.c (2863): worker ajp13 target is
'localhost:8009'
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_resolve::jk_connect.c (406): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_resolve::jk_connect.c (599): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_ajp_push::jk_ajp_common.c (1188): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
jk_ajp_push::jk_ajp_common.c (1191): syncing shm for ajp worker 'ajp13'
from mem (0->0) [0->0]
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
jk_ajp_push::jk_ajp_common.c (1239): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_validate::jk_ajp_common.c (2908): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
validate::jk_ajp13_worker.c (37): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
init::jk_ajp13_worker.c (47): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_init::jk_ajp_common.c (2974): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3077): (ajp13) setting endpoint options:
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3081): keepalive:              0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3085): socket timeout:         0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3089): socket connect timeout: 0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3093): buffer size:            0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3097): pool timeout:           0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3101): ping timeout:           10000
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3105): connect timeout:        0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3109): reply timeout:          0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3113): prepost timeout:        0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3117): recovery options:       0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3121): retries:                2
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3125): max packet size:        8192
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3129): retry interval:         100
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_init::jk_ajp_common.c (3133): busy limit:         0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_create_endpoint_cache::jk_ajp_common.c (2924): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
ajp_create_endpoint_cache::jk_ajp_common.c (2933): (ajp13) setting
connection pool size to 1 with min 1 and acquire timeout 200
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_create_endpoint_cache::jk_ajp_common.c (2962): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
ajp_init::jk_ajp_common.c (3155): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
init::jk_ajp13_worker.c (50): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_create_worker::jk_worker.c (206): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
build_worker_map::jk_worker.c (281): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
wc_open::jk_worker.c (93): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [info] init_jk::mod_jk.c
(3580): mod_jk/1.2.44 initialized
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_ext::jk_uri_worker_map.c (617): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (174): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (178): uri map dump after
extension stripping: id=1, index=0 file='(null)' reject_unsafe=0 reload=60
modified=0 checked=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 0: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_dump::jk_uri_worker_map.c (184): generation 1: size=0
nosize=0 capacity=0
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_dump::jk_uri_worker_map.c (207): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_ext::jk_uri_worker_map.c (633): exit
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_switch::jk_uri_worker_map.c (597): enter
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [debug]
uri_worker_map_switch::jk_uri_worker_map.c (602): Switching uri worker map
from index 0 to index 1
[Mon Sep 30 15:01:43 2019][3905:140148297873536] [trace]
uri_worker_map_switch::jk_uri_worker_map.c (609): exit
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [trace]
jk_child_init::mod_jk.c (3440): enter
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [debug]
do_shm_open::jk_shm.c (679): Attached shared memory
/etc/httpd/logs/jk.shm.3905 [2] size=1024 workers=0 free=0
addr=0x7f76d1838000
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (473): Duplicated shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (475): exit
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [debug]
jk_child_init::mod_jk.c (3463): Initialized mod_jk/1.2.44
[Mon Sep 30 15:01:43 2019][3906:140148297873536] [trace]
jk_child_init::mod_jk.c (3464): exit
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [trace]
jk_child_init::mod_jk.c (3440): enter
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [debug]
do_shm_open::jk_shm.c (679): Attached shared memory
/etc/httpd/logs/jk.shm.3905 [3] size=1024 workers=0 free=0
addr=0x7f76d1838000
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (473): Duplicated shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (475): exit
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [debug]
jk_child_init::mod_jk.c (3463): Initialized mod_jk/1.2.44
[Mon Sep 30 15:01:43 2019][3907:140148297873536] [trace]
jk_child_init::mod_jk.c (3464): exit
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [trace]
jk_child_init::mod_jk.c (3440): enter
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [debug]
do_shm_open::jk_shm.c (679): Attached shared memory
/etc/httpd/logs/jk.shm.3905 [4] size=1024 workers=0 free=0
addr=0x7f76d1838000
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (473): Duplicated shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (475): exit
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [debug]
jk_child_init::mod_jk.c (3463): Initialized mod_jk/1.2.44
[Mon Sep 30 15:01:43 2019][3910:140148297873536] [trace]
jk_child_init::mod_jk.c (3464): exit
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [trace]
jk_child_init::mod_jk.c (3440): enter
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [debug]
do_shm_open::jk_shm.c (679): Attached shared memory
/etc/httpd/logs/jk.shm.3905 [5] size=1024 workers=0 free=0
addr=0x7f76d1838000
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (473): Duplicated shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (475): exit
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [debug]
jk_child_init::mod_jk.c (3463): Initialized mod_jk/1.2.44
[Mon Sep 30 15:01:43 2019][3908:140148297873536] [trace]
jk_child_init::mod_jk.c (3464): exit
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [trace]
jk_child_init::mod_jk.c (3440): enter
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [debug]
do_shm_open::jk_shm.c (679): Attached shared memory
/etc/httpd/logs/jk.shm.3905 [6] size=1024 workers=0 free=0
addr=0x7f76d1838000
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (473): Duplicated shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (475): exit
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [debug]
jk_child_init::mod_jk.c (3463): Initialized mod_jk/1.2.44
[Mon Sep 30 15:01:43 2019][3909:140148297873536] [trace]
jk_child_init::mod_jk.c (3464): exit
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_servlet_normalize::jk_util.c (2184): URI on entering
jk_servlet_normalize: [/test-ssi/index.shtml]
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_servlet_normalize::jk_util.c (2265): URI on exiting
jk_servlet_normalize: [/test-ssi/index.shtml]
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
map_uri_to_worker_ext::jk_uri_worker_map.c (1080): enter
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
map_uri_to_worker_ext::jk_uri_worker_map.c (1175): Attempting to map URI
'/test-ssi/index.shtml' from 0 maps
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
find_match::jk_uri_worker_map.c (967): enter
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
find_match::jk_uri_worker_map.c (1010): exit
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
map_uri_to_worker_ext::jk_uri_worker_map.c (1208): exit
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_translate::mod_jk.c (3954): no match for /test-ssi/index.shtml found
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_servlet_normalize::jk_util.c (2184): URI on entering
jk_servlet_normalize: [/test-ssi/index.shtml]
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_servlet_normalize::jk_util.c (2265): URI on exiting
jk_servlet_normalize: [/test-ssi/index.shtml]
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
map_uri_to_worker_ext::jk_uri_worker_map.c (1080): enter
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
map_uri_to_worker_ext::jk_uri_worker_map.c (1175): Attempting to map URI
'/test-ssi/index.shtml' from 0 maps
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
find_match::jk_uri_worker_map.c (967): enter
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
find_match::jk_uri_worker_map.c (1010): exit
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [trace]
map_uri_to_worker_ext::jk_uri_worker_map.c (1208): exit
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_map_to_storage::mod_jk.c (4039): no match for /test-ssi/index.shtml found
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_servlet_normalize::jk_util.c (2184): URI on entering
jk_servlet_normalize: []
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [emerg]
jk_servlet_normalize::jk_util.c (2188): [] does not start with '/'.
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [debug]
jk_servlet_normalize::jk_util.c (2184): URI on entering
jk_servlet_normalize: []
[Mon Sep 30 15:04:03 2019][3906:140148297873536] [emerg]
jk_servlet_normalize::jk_util.c (2188): [] does not start with '/'.
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [trace]
jk_child_init::mod_jk.c (3440): enter
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [trace]
do_shm_open::jk_shm.c (548): enter
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [debug]
do_shm_open::jk_shm.c (679): Attached shared memory
/etc/httpd/logs/jk.shm.3905 [7] size=1024 workers=0 free=0
addr=0x7f76d1838000
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (459): enter
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [debug]
do_shm_open_lock::jk_shm.c (473): Duplicated shared memory lock
/etc/httpd/logs/jk.shm.3905.lock
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [trace]
do_shm_open_lock::jk_shm.c (475): exit
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [trace]
do_shm_open::jk_shm.c (723): exit
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [debug]
jk_child_init::mod_jk.c (3463): Initialized mod_jk/1.2.44
[Mon Sep 30 15:04:04 2019][3926:140148297873536] [trace]
jk_child_init::mod_jk.c (3464): exit



On Wed, Sep 18, 2019 at 7:24 AM Rainer Jung <rainer.j...@kippdata.de> wrote:

> Am 17.09.2019 um 17:44 schrieb Ezsra McDonald:
> > Hello,
> >
> > Environment:
> > OS: CentOS 7
> > Apache: Apache/2.4.6 (CentOS)
> > Working Connector: tomcat-connectors-1.2.42
> >
> > When we installed the latest version of the connector, 1.2.46 at this
> time,
> > some of our customer Server Side Includes stopped working. SSIs using
> > the <!--#include
> > file="file-name" --> directives produce the following error in the log
> > files:
> >
> > unable to include "layout/includes/headernav.html" in parsed file
> > /var/www/html/horses/index.shtml, subrequest setup returned 400, referer:
> > http://10.211.55.44/horses/
> >
> > When we roll back to tomcat-connectors-1.2.42 the SSI works.
> >
> > We do not know why tomcat-connectors impact mod_include.
> >
> > Any assistance would be appreciated.
>
> It seems you can easily reproduce. Can you set JkLogLevel to trace and
> run one request that shows the failure? Then provide the resulting
> mod_jk log file plus your mod_jk configuration (all Jk... diractives
> plus workers.properties plus uriworkermap.properties or similar if in use).
>
> Thanks and regards,
>
> Rainer
>
>

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