# wowza error **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [April 22, 2014, 10:06pm UTC](https://community.wowza.com/t/wowza-error/40592 "2014-04-22T22:06:43Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Luis\_Muniz](https://avatars.discourse-cdn.com/v4/letter/l/df788c/32.png) [@Luis\_Muniz](https://community.wowza.com/u/Luis_Muniz)\ **Post date:** [April 22, 2014, 10:06pm UTC](https://community.wowza.com/t/wowza-error/40592/1 "2014-04-22T22:06:43Z")
ERROR server comment 2014-04-22 21:46:15 - - - - - 36550.737 - - - - - - - - ModuleCore.connect[validate]: java.lang.NullPointerException ERROR server comment 2014-04-22 21:46:15 - - - - - 36550.738 - - - - - - - - validateNewConnection[rtmp] exit:50:90 WARN server comment 2014-04-22 21:46:15 - - - - - 0.055 - - - - - - - - Application folder ([install-location]/applications/xxxx) is missing **after error above, wowza turn off.** **sometimes the error comes like that:** […] ERROR server comment 2014-04-21 12:36:49 - - - - - 262039.903 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:37:20 - - - - - 262071.059 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:37:21 - - - - - 262071.205 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:37:50 - - - - - 262100.146 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:37:50 - - - - - 262100.175 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:38:20 - - - - - 262130.301 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:38:20 - - - - - 262130.352 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:38:50 - - - - - 262160.533 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:38:50 - - - - - 262160.577 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:39:22 - - - - - 262192.119 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:39:22 - - - - - 262192.264 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:39:51 - - - - - 262221.598 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:39:51 - - - - - 262221.627 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:40:21 - - - - - 262251.099 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:40:21 - - - - - 262251.125 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:40:51 - - - - - 262281.751 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:40:51 - - - - - 262281.855 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:41:23 - - - - - 262314.051 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:41:25 - - - - - 262315.422 - - - - - - - - constructor AMFDataObj(ByteBuffer)[503:504]: java.nio.BufferUnderflowException ERROR server comment 2014-04-21 12:41:25 - - - - - 262315.423 - - - - - - - - ModuleCore.connect[validate]: java.lang.NullPointerException ERROR server comment 2014-04-21 12:41:25 - - - - - 262315.424 - - - - - - - - validateNewConnection[rtmp] exit:50:-40 **Please help, every single day multiples error are happens.** ---
**Author:** ![Matt\_Young](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/matt_young/32/389_2.png) [@Matt\_Young](https://community.wowza.com/u/Matt_Young)\ **Post date:** [April 22, 2014, 11:48pm UTC](https://community.wowza.com/t/wowza-error/40592/2 "2014-04-22T23:48:25Z")
You may need to [tune your server](https://www.wowza.com/docs/how-to-do-performance-tuning) appropriately. If you have already, please provide more information regarding the version of Wowza and copy & paste the startup sequence from your logs. ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [April 24, 2014, 3:32pm UTC](https://community.wowza.com/t/wowza-error/40592/3 "2014-04-24T15:32:26Z")
Do you have any custom modules that work with RTMP clients using NetConnection.call(), or NetConnection.broadcastMsg(), or NetStream.send(), or the client-side equivalents? If so, that’s where I would look regarding the AMFDataObj ERROR lines. Richard ---
**Author:** ![Luis\_Muniz](https://avatars.discourse-cdn.com/v4/letter/l/df788c/32.png) [@Luis\_Muniz](https://community.wowza.com/u/Luis_Muniz)\ **Post date:** [April 24, 2014, 12:31am UTC](https://community.wowza.com/t/wowza-error/40592/4 "2014-04-24T00:31:42Z")
2014-04-23 16:04:55 BRT server-start server INFO 200 Wowza Media Server 3 Monthly Edition 3.6.4.02 build10406 - - - - 0.401 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Server License Key: SVRM3-XXXXX-XXXXX-XXXXX-XXXXX-uH67E - - - 0.402 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Maximum Connections: Unlimited - - - 0.402 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Transcoder Streams Available: Unlimited - - - 0.405 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Transcoder Watermark: No - - - 0.405 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - nDVR Available: Yes - - - 0.405 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - DRM Available: Yes - - - 0.406 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Hardware Available Processors: 8 - - - 0.406 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Hardware Physical Memory: 3165MB/7958MB - - - 0.408 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Max File Descriptor Count: 524280 - - - 0.408 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Open File Descriptor Count: 59 - - - 0.408 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - OS Name: Linux - - - 0.409 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - OS Version: 3.2.0-60-generic - - - 0.409 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - OS Architecture: amd64 - - - 0.409 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Name: OpenJDK 64-Bit Server VM - - - 0.41 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Vendor: Sun Microsystems Inc. - - - 0.41 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Version: 1.6.0\_30 - - - 0.41 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java VM Version: 23.25-b01 - - - 0.411 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Spec Version: 1.6 - - - 0.411 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Home: /usr/lib/jvm/java-6-openjdk-amd64/jre - - - 0.411 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Max Heap Size: 3874MB - - - 0.412 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Architecture: 64 - - - 0.412 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Locale[user.language]: pt - - - 0.412 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Locale[user.country]: BR - - - 0.413 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Locale[file.encoding]: UTF-8 - - - 0.413 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Timezone[user.timezone]: America/Sao\_Paulo - - - 0.413 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[0]: -Xmx4096M - - - 0.414 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[1]: -Xms4096M - - - 0.414 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[2]: -XX:NewSize=512M - - - 0.414 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[6]: -XX:+UseConcMarkSweepGC - - - 0.415 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[7]: -XX:+UseParNewGC - - - 0.416 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[12]: -Duser.language=pt - - - 0.417 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[13]: -Duser.country=BR - - - 0.417 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[14]: -Duser.timezone=America/Sao\_Paulo - - - 0.418 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[15]: -Dfile.encoding=UTF-8 - - - 0.418 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[16]: -Djava.net.preferIPv4Stack=true - - - 0.418 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[17]: -Xmx4096M - - - 0.419 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[18]: -Xms4096M - - - 0.419 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[19]: -XX:NewSize=512M - - - 0.419 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[29]: -Duser.language=pt - - - 0.422 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[30]: -Duser.country=BR - - - 0.423 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[31]: -Duser.timezone=America/Sao\_Paulo - - - 0.423 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[32]: -Dfile.encoding=UTF-8 - - - 0.423 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[33]: -Djava.net.preferIPv4Stack=true - - - 0.423 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[34]: -Dcom.sun.management.jmxremote=true - - - 0.424 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[35]: -Dcom.wowza.wms.runmode=service - - - 0.424 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[36]: -Dcom.wowza.wms.native.base=linux - - - 0.424 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[37]: -Dcom.wowza.wms.AppHome=/usr/local/WowzaMediaServer - - - 0.425 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[38]: -Dcom.wowza.wms.ConfigURL= - - - 0.425 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Java Args[39]: -Dcom.wowza.wms.ConfigHome=/usr/local/WowzaMediaServer - - - 0.425 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Server runmode: service - - - 0.426 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Server native.platform: linux - - - 0.426 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - Server threads[h/t]: 10/10 - - - 0.426 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - JMX java.rmi.server.hostname: xxxxxxxxxx - - - 0.702 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - JMX bind attempt service:jmx:rmi://xxxxxxxxxxxxxx:8084/jndi/rmi://xxxxxxxxxxxxxx:8085/jmxrmi - - - 0.703 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - JMX password file: /usr/local/WowzaMediaServer/conf/jmxremote.password - - - 0.706 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - JMX access file: /usr/local/WowzaMediaServer/conf/jmxremote.access - - - 0.707 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - JMX bind successful - - - 0.732 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:55 BRT comment server INFO 200 - CMDInterface now listening: [any]:8083 - - - 0.756 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT vhost-start vhost INFO 200 _defaultVHost_ - - - - 1.231 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment server INFO 200 - _defaultVHost_ threads[h/t]:480/320 home:/usr/local/WowzaMediaServer - - - 1.274 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment vhost INFO 200 _defaultVHost_ Bind attempt ([any]:1935:8) - - - 1.276 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment vhost INFO 200 _defaultVHost_ Bind successful ([any]:1935) - - - 1.28 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment vhost INFO 200 _defaultVHost_ Bind attempt ([any]:80:4) - - - 1.282 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment vhost INFO 200 _defaultVHost_ Bind successful ([any]:80) - - - 1.284 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment server INFO 200 - Server.startShutdownHook: Start server shutdown hook - - - 1.284 - - - - - - - - - - - - - - - - - - - - - - - - - 2014-04-23 16:04:56 BRT comment server INFO 200 - Wowza Media Server is started! - - - 1.285 - - - - - - - - - - - - - - - - - - - - - - - - - ---
**Author:** ![Luis\_Muniz](https://avatars.discourse-cdn.com/v4/letter/l/df788c/32.png) [@Luis\_Muniz](https://community.wowza.com/u/Luis_Muniz)\ **Post date:** [April 24, 2014, 1:15pm UTC](https://community.wowza.com/t/wowza-error/40592/5 "2014-04-24T13:15:38Z")
> Do you have any custom modules that work with RTMP clients using NetConnection.call(), or NetConnection.broadcastMsg(), or NetStream.send(), or the client-side equivalents? If so, that’s where I would look regarding the AMFDataObj ERROR lines. > > Richard Yes, should be easy, if it was not a wowza internal server error. IClient.call and IApplicationInstance.broadcastMsg are used out there, indeed. Bandwidth troubles has said the issues (wowza support), but I don’t think so.