How to Upgrade Monit -------------------- @author Christian Hopp, @version \$Id: UPGRADE.txt,v 1.1 2003/06/20 16:55:08 chopp Exp $ This document describes how to change the configuration files of monit in case monit is upgraded. Further changes and addition are described in CHANGES.txt. From monit 3.2 to monit 4.0: =========================== * The DEPENDS statement has been changed. The services are from now on comma separated: Old syntax: DEPENDS service [service [...]] New syntax: DEPENDS service[, service [,...]] * Monit 4.0 supports file, device and directory checks in addition to process checks. Thus, the CHECK statement has been changed: Old syntax: CHECK servicename New syntax: CHECK [PROCESS|DEVICE|DIRECTORY|FILE] servicename The old CHECK syntax without "PROCESS" token is still usable but depreciated. Future versions might not support it anymore. * The CPU and memory check syntax has been simplified. The new syntax has only the tokens CPU and MEM: Old syntax: CPUUSAGE value [cycles] action MEMUSAGE value [cycles] action MEMKBYTE value [cycles] action New syntax: CPU operator value unit [cycles] action MEM operator value unit [cycles] action The "operator" token is still a choice of {<|>|==|!=} or in words {less|greater|equal|notequal}; value is a choice of an integer number or a real number (using a dot); unit is {%|PERCENT} for CPU and a choice of {%|B|KB|MB|GB} or in words {PERCENT|BYTE|KILOBYTE| MEGABYTE|GIGABYTE}; "cycles" refers still the number of cycles the statement has to be true in order to start the "action". Example: MEM > 2.5 MB 5 RESTART MEM > 25% 3 RESTART The old syntax using CPUUSAGE, MEMUSAGE, MEMKBYTE is obsolete and no longer supported. * $PROGRAM tag of statement mail-format was renamed to $SERVICE without changing its meaning. $PROGRAM is still usable but depreciated. Future versions might not support it anymore.