Opening files from disk

When Health Center monitors a Java™ application, data is stored to disk.

Health Center can analyze log files gathered from an earlier invocation of a Java Virtual Machine (JVM), without making a live connection. To open log files from disk, cancel the connection wizard that appears when the client is started.

Opening saved data files

If you saved data previously, you can load the data back into the Health Center. Saved data files have a .hcd file extension. Older releases of the Health Center stored data in files with a .zip file extension.

To load saved data, select File > Open File.

Select the name of the .hcd or .zip file containing the data to load. Depending on the quantity of data to import, it might take a while for the Health Center to process the files. When the import finishes, the Health Center displays the information.

Opening log files

For Java 5 SR9 and earlier or Java 6 SR4 and earlier, the Health Center agent stores data to disk in the perfmon.out file. To open a log file, select File > Open File.

The Health Center can parse trace files containing garbage collection information or profiling information. These trace files are created automatically by the Health Center agent when enabled with the -agentlib:healthcenter and -Xtrace:output=perfmon.out command-line options.

When a file is opened, the Health Center attempts to parse it and analyze the parsed data. On completion of the analysis, the status view and perspective are updated to show the available information.

JVM subsystems for which data is available are linked. For further information, you can click the available links, including Profiling, Classes, Locking and Garbage Collection.



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