Avamar: Proxy Deployment Manager fails while fetching task with HTTP error code 404.

Summary: This article explains how to resolve the Avamar Proxy Deployment Manager failing with error: "Error while fetching task fails with HTTP error code: 404 additional information."

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Symptoms

After upgrading an Avamar server from 19.4 to 19.7, the Proxy Deployment Manager (PDM) may fail with the following message:

Error while fetching tasks. Failed with HTTP error code:404 additional information" HTTP Status 404 – Not Found.

Error in deploymanager.log:

INFO  [ost-startStop-1][   util.MCCipherUtil#   getResultValue]: getResultValue:rabbitmqAP
 INFO  [ost-startStop-1][   util.MCCipherUtil#cryptValueByXPath]: xPath://entry[@key='rabbitmqAP']
 INFO  [ost-startStop-1][   til.MCCipherUtil#      getDocument]: getDocument: mcserverXMLFile:/usr/local/avamar/var/mc/server_data/prefs/mcserver.xml
 ERROR [ost-startStop-1][   util.MCCipherUtil#      getDocument]: getDocument fail: /usr/local/avamar/var/mc/server_data/prefs/preferences.dtd (Permission denied)
 ERROR [ost-startStop-1][   util.MCCipherUtil#cryptValueByXPath]: Decrypt failed at: /usr/local/avamar/var/mc/server_data/prefs/preferences.dtd (Permission denied)
 ERROR [ost-startStop-1][   util.MCCipherUtil#   getResultValue]: Error found for decrypt: /usr/local/avamar/var/mc/server_data/prefs/preferences.dtd (Permission denied)
 ERROR [ost-startStop-1][   util.RabbitMQUtil#ConnectionFactory]: getConnectionFactory Exception====
 ERROR [ost-startStop-1][   util.RabbitMQUtil#ConnectionFactory]: /usr/local/avamar/var/mc/server_data/prefs/preferences.dtd (Permission denied)
 INFO  [ost-startStop-1][   util.RabbitMQUtil#ConnectionFactory]: cf.isSSL():false

Error in mcserver.log:

[RMI TCP Connection(55)-x#1079] com.avamar.mc.pdm.ProxyDeploymentManagerService.submitJsonWithRetry
WARNING: Failed (https://localhost:8543/deploymanager/auth/logout)(attempt 3 of 3): Failed with HTTP error code : 404
  additional information : <!doctype html><html lang="en"><head><title>HTTP Status 404 342200223 Not Found</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;backg
round-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>HTTP Statu
s 404 342200223 Not Found</h1><hr class="line" /><p><b>Type</b> Status Report</p><p><b>Message</b> The requested resource [&#47;deploymanager&#47;auth&#47;logout] is not available</p><p><b>Description</b> The orig
in server did not find a current representation for the target resource or is not willing to disclose that one exists.</p><hr class="line" /><h3>Apache Tomcat</h3></body></html>
[RMI TCP Connection(55)-x#1079] com.avamar.mc.pdm.ProxyDeploymentManagerService.logFailure
WARNING: uri=https://localhost:8543/deploymanager/auth/logout, header=, body=null
[RMI TCP Connection(55)-x#1079] sun.rmi.server.UnicastServerRef.logCallException
FINE: RMI TCP Connection(55)-x: [x] exception:
com.avamar.asn.service.ServiceException: Failed with HTTP error code : 404
  additional information : <!doctype html><html lang="en"><head><title>HTTP Status 404 342200223 Not Found</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;backg
round-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>HTTP Statu
s 404 342200223 Not Found</h1><hr class="line" /><p><b>Type</b> Status Report</p><p><b>Message</b> The requested resource [&#47;deploymanager&#47;auth&#47;login] is not available</p><p><b>Description</b> The origi
n server did not find a current representation for the target resource or is not willing to disclose that one exists.</p><hr class="line" /><h3>Apache Tomcat</h3></body></html>
        at com.avamar.mc.pdm.ProxyDeploymentManagerService.getAllTasks(ProxyDeploymentManagerService.java:451)
        at sun.reflect.GeneratedMethodAccessor109.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
        at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:61)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
        at com.sun.proxy.$Proxy98.getAllTasks(Unknown Source)
        at com.avamar.mc.pdm.ProxyDeploymentManagerServiceContext.getAllTasks(ProxyDeploymentManagerServiceContext.java:72)

Cause

This is a software issue.

Resolution

  1. Log in to the Avamar Utility Node operating system as the root user.
  2. Change the permission of preferences.dtd: 
    chmod 444 /usr/local/avamar/var/mc/server_data/prefs/preferences.dtd
  3. Restart the tomcat service: 
    tomcatctl stop
tomcatctl start

Affected Products

Avamar
Article Properties
Article Number: 000207337
Article Type: Solution
Last Modified: 06 May 2026
Version:  3
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