cognos报表运行时遇到的问题，求解答

你好，请问你这个问题解决了吗，怎么解决的，分享下吧收起

    不用cognos的日期控件，改用普通的下拉控件，分成年和月两个控件。收起

今天第二个问题还有些改善了，加了一个提示界面。。。第一个问题，没人帮回答下吗。。收起

回复 5# zhonghanquan


    哎，领导扣啊，想少花钱还办好事……估计要挨批拉。。收起

回复 6# ittimes


    这个方法也用过了。。。也没效果。。。什么修改亲和力配置，改配置文件，优化报表，全都试过了。。我的问题比较悲剧的就是，有些电脑点击该系统的报表就不会报错、、、、收起

Try the following solution:

There are several potential root causes for this timeout, and they include the following:

Scenario #1 - The report server is overloaded, because the recommended hardware specifications have not been met

    See separate IBM Technotes #1340994 & 1339581 for more details


Scenario #2 - Firewall is interfering with communication between the client and the report server

    See IBM Technote #1340994


Scenario #3 - Three (3) or more browser sessions are being used on the same client device simultaneously

    See IBM Technote #1340994


Scenario #4 - Network connection between client device and Report server is slow

    For example, there is a poor-quality wireless network or WAN connection
    See IBM Technote #1344573.


TIP: Although timeouts are the most common cause, there are other possible causes such as:

    Scenario #5 - The hostname specified for the server contains an '_' (underscore).
        Windows (for example IIS) does not support underscore characters in many of its operations. It is therefore not a supported/recommended character
        For more information, see separate IBM Technotes #1340388 , #1364707.

Resolving the problem

Solution

Review the Technotes referred to inside the scenarios above. Resolve any issues that are found with your system.

Workaround - for timeout related problems

Increase the Cognos 8 async timeout parameter, to reduce the chance of a timeout

    For example, increase the timeout from the default (30 seconds) to something larger (for example 60 or 90 seconds)


Steps for workaround:

See IBM Technote #1344573 for complete details, but to summarise:

    Obtain a short period of downtime (no users logged into the Cognos system)
    Logon to your Controller application server
    Open the folder ...\WEB-INF\services. TIP: By default, this is located here: C:\Program Files\cognos\c8\webapps\p2pd\WEB-INF\services
    Locate the file 'reportservice.xml'
    As a precaution, create a backup copy of this file
    Open the file reportservice.xml inside NOTEPAD.EXE
    Locate the section which refers to async_wait_timeout_ms
    Modify the setting to increase the timeout from the default (30 seconds = 30000ms) to a larger setting (for example 90 seconds = 90000 ms, or perhaps 60 seconds)
    Save the file
    Restart the Cognos 8 service (or the entire application server if preferred)
    Test


TIP: For example, the new setting will look similar to:


    async_wait_timeout_ms
    90000收起

回复 3# liufei99168


    那就比较杯具了，祝你好运！不行就花钱请IBM工程师来解决，呵呵！收起

我查了好几天的资料，这两个问题，遇到的人还挺多的，就是没什么根本的解决办法和原因分析的。。。真的是BUG吗？不过，原因就简单的写成BUG 没几个领导会信吧。。。收起

回复 2# zhonghanquan
这个办法已用过，没解决掉。而且网上查的一些 修改cognos亲和力的配置也请人修改过了，也没啥效果。比较无奈。。。连压力测试都通过不了。。。收起

把cognos connection的地址加入到报错机子的可信任站点里试一下，不知道此方法行不行，关注一下后面的回帖，俺也学习学习故障排除，呵呵！收起