16.1.2 Notes on the data collection tool (_04)
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The following table summarizes the differences between the data collection tool (_04) in JP1/AJS2 07-10 and later versions, and the data collection tool (_04) in JP1/AJS2 versions earlier than 07-10.
Table 16‒3: Differences in the data collection tool (_04) versions Functionality
Version 07-10 or later
Version earlier than 07-10
Collection of the following types of data:
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Error log information#1
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Information about the /etc/environment file#1
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File list information for the database directory
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Information required for core analysis#2
Data is collected.
Data is not collected.
Specification of the logical host
The logical host name is specified when the data collection tool (_04) is executed.
The directory for storing data is set for each logical host in the environment settings of the data collection tool (_04).
Isolation of initial investigation files
Initial investigation files are stored in a special directory.
The files required for initial investigation are output to separate locations.
- #1:
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This type of information is collected in AIX only.
- #2:
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In Linux, note the following:
Because the maximum size of a core file at output might be set to 0 by default in Linux, outputting core dumps might not be possible.
For this reason, the following setting is specified by default for the jajs_start and jajs_start.cluster commands to ensure that core dumps are available in Linux:
if [ 'uname' = Linux ]; then
ulimit -c unlimited
fi
If this setting violates the security policy of the host being used, comment out the settings of these files as shown below.
If you comment out the settings, core dumps might not be output and you might not be able to investigate the cause of a problem if a core dump is output, such as a segmentation error or bus error that occurs in a JP1/AJS3 process.
#if [ 'uname' = Linux ]; then
# ulimit -c unlimited
#fi
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If you have customized the data collection tool (_04) of a JP1/AJS2 version earlier than 07-10 so that the tool also collects non-standard data items, the customization is lost when the JP1/AJS2 version is upgraded to 07-10 or later.