NAME

sdrwatch - SDR non-volatile data store activity monitor

SYNOPSIS

sdrwatch sdr_name [ -t | -s | -r | -z ] [interval [count [ verbose ]]]

DESCRIPTION

For count interations (defaulting to 1), sdrwatch sleeps interval seconds and then performs the SDR operation indicated by the specified mode: 's' to print statistics, 'r' to reset statistics, 'z' to print ZCO space utilization, 't' (the default) to call the sdr_print_trace() function (see sdr(3)) to report on SDR data storage management activity in the SDR data store identified by sdr_name during that interval. If the optional verbose parameter is specified, the printed SDR activity trace will be verbose as described in sdr(3).

If interval is zero, sdrwatch just performs the indicated operation once (for 't', it merely prints a current usage summary for the indicated data store) and terminates.

sdrwatch is helpful for detecting and diagnosing storage space leaks. For debugging the ION protocol stack, sdr_name is normally "ion" but might be overridden by the value of sdrName in the .ionconfig file used to configure the node under study.

EXIT STATUS

"0"

sdrwatch has terminated.

FILES

No configuration files are needed.

ENVIRONMENT

No environment variables apply.

DIAGNOSTICS

The following diagnostics may be issued to the ion.log log file:

Can't attach to sdr.

ION system error. One possible cause is that ION has not yet been initialized on the local computer; run ionadmin(1) to correct this.
Can't start trace.

Insufficient ION working memory to contain trace information. Reinitialize ION with more memory.

BUGS

Report bugs to <https://github.com/nasa-jpl/ION-DTN/issues>