Áú»¢¶Ä²©

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§¯§Ö§ã§Ü§à§Ý§î§Ü§à §á§Ñ§â§Ñ§Þ§Ö§ä§â§à§Ó §Ü§à§ß§æ§Ú§Ô§å§â§Ñ§è§Ú§Ú §à§á§â§Ö§Õ§Ö§Ý§ñ§ð§ä §Ü§Ñ§Ü§Ú§Þ §à§Ò§â§Ñ§Ù§à§Þ Áú»¢¶Ä²© §ã§Ö§â§Ó§Ö§â §Õ§à§Ý§Ø§Ö§ß §Ó§Ö§ã§ä§Ú §ã§Ö§Ò§ñ, §Ö§ã§Ý§Ú §Ñ§Ô§Ö§ß§ä§ã§Ü§Ú§Ö §á§â§à§Ó§Ö§â§Ü§Ú (Áú»¢¶Ä²©, SNMP, IPMI, JMX) §Ù§Ñ§Ó§Ö§â§ê§Ñ§ð§ä§ã§ñ §ã §à§ê§Ú§Ò§Ü§Ñ§Þ§Ú §Ú §ç§à§ã§ä §ã§ä§Ñ§ß§à§Ó§Ú§ä§ã§ñ §ß§Ö§Õ§à§ã§ä§Ú§Ø§Ú§Þ§í§Þ.

§¯§Ö§Õ§à§ã§ä§Ú§Ø§Ú§Þ§í§Û §å§Ù§Ö§Ý §ã§Ö§ä§Ú

§µ§Ù§Ö§Ý §ã§Ö§ä§Ú §ã§é§Ú§ä§Ñ§Ö§ä§ã§ñ §ß§Ö§Õ§à§ã§ä§Ú§Ø§Ú§Þ§í§Þ §á§à§ã§Ý§Ö §à§ê§Ú§Ò§Ü§Ú §á§â§Ú §á§â§à§Ó§Ö§â§Ü§Ö (§ã§Ö§ä§Ö§Ó§Ñ§ñ §à§ê§Ú§Ò§Ü§Ñ, §á§â§Ö§Ó§í§ê§Ö§ß§Ú§Ö §Ó§â§Ö§Þ§Ö§ß§Ú §à§Ø§Ú§Õ§Ñ§ß§Ú§ñ) §á§â§Ú §á§à§Þ§à§ë§Ú Áú»¢¶Ä²©, SNMP, IPMI §Ú§Ý§Ú JMX §Ñ§Ô§Ö§ß§ä§à§Ó. §£§à§Ù§î§Þ§Ú§ä§Ö §ß§Ñ §Ù§Ñ§Þ§Ö§ä§Ü§å, §é§ä§à §Ñ§Ü§ä§Ú§Ó§ß§í§Ö §á§â§à§Ó§Ö§â§Ü§Ú Áú»¢¶Ä²© §Ñ§Ô§Ö§ß§ä§Ñ §ß§Ú§Ü§Ñ§Ü §ß§Ö §Ó§Ý§Ú§ñ§ð§ä §ß§Ñ §Õ§à§ã§ä§å§á§ß§à§ã§ä§î §å§Ù§Ý§Ñ §ã§Ö§ä§Ú.

§³ §ï§ä§à§Ô§à §Þ§à§Þ§Ö§ß§ä§Ñ UnreachableDelay §à§á§â§Ö§Õ§Ö§Ý§ñ§Ö§ä §Ü§Ñ§Ü §é§Ñ§ã§ä§à §å§Ù§Ö§Ý §ã§Ö§ä§Ú §Ò§å§Õ§Ö§ä §á§à§Ó§ä§à§â§ß§à §á§â§à§Ó§Ö§â§ñ§ä§î§ã§ñ, §Ú§ã§á§à§Ý§î§Ù§å§ñ §à§Õ§Ú§ß §Ú§Ù §ï§Ý§Ö§Þ§Ö§ß§ä§à§Ó §Õ§Ñ§ß§ß§í§ç (§Ó§Ü§Ý§ð§é§Ñ§ñ LLD §á§â§Ñ§Ó§Ú§Ý§Ñ), §Ó §ã§Ú§ä§å§Ñ§è§Ú§Ú §ß§Ö§Õ§à§ã§ä§Ú§Ø§Ú§Þ§à§ã§ä§Ú §Ú §ä§Ñ§Ü§Ú§Ö §á§à§Ó§ä§à§â§ß§í§Ö §á§â§à§Ó§Ö§â§Ü§Ú §Ó§í§á§à§Ý§ß§ñ§ð§ä§ã§ñ §å§Ø§Ö §ã §á§à§Þ§à§ë§î§ð unreachable §á§à§Ý§Ý§Ö§â§à§Ó (§Ú§Ý§Ú IPMI §á§à§Ý§Ý§Ö§â§à§Ó §Õ§Ý§ñ IPMI §á§â§à§Ó§Ö§â§à§Ü). §±§à §å§Þ§à§Ý§é§Ñ§ß§Ú§ð 15 §ã§Ö§Ü§å§ß§Õ §Õ§à §ã§Ý§Ö§Õ§å§ð§ë§Ö§Û §á§â§à§Ó§Ö§â§Ü§Ú.

§£ §Ø§å§â§ß§Ñ§Ý§Ö Áú»¢¶Ä²© §ã§Ö§â§Ó§Ö§â§Ñ §ß§Ö§Õ§à§ã§ä§Ú§Ø§Ú§Þ§à§ã§ä§î §Ù§Ñ§á§Ú§ã§í§Ó§Ñ§Ö§ä§ã§ñ §ã§à§à§Ò§ë§Ö§ß§Ú§ñ§Þ§Ú §á§à§Õ§à§Ò§ß§í§Þ§Ú §ã§Ý§Ö§Õ§å§ð§ë§Ú§Þ:

Áú»¢¶Ä²© agent item [system.cpu.load[percpu,avg1]] on host [New host] failed: first network error, wait for 15 seconds
       Áú»¢¶Ä²© agent item [system.cpu.load[percpu,avg15]] on host [New host] failed: another network error, wait for 15 seconds

§°§Ò§â§Ñ§ä§Ú§ä§Ö §Ó§ß§Ú§Þ§Ñ§ß§Ú§Ö, §é§ä§à §å§Ü§Ñ§Ù§í§Ó§Ñ§Ö§ä§ã§ñ §Ü§Ñ§Ü§à§Û §ä§à§é§ß§à §ï§Ý§Ö§Þ§Ö§ß§ä §Õ§Ñ§ß§ß§í§ç §Ó§í§á§à§Ý§ß§Ú§Ý§ã§ñ §ã §à§ê§Ú§Ò§Ü§à§Û §Ú §ä§Ú§á §ï§ä§à§Ô§à §ï§Ý§Ö§Þ§Ö§ß§ä§Ñ §Õ§Ñ§ß§ß§í§ç (Áú»¢¶Ä²© §Ñ§Ô§Ö§ß§ä).

§±§Ñ§â§Ñ§Þ§Ö§ä§â UnreachablePeriod §à§á§â§Ö§Õ§Ö§Ý§ñ§Ö§ä §à§Ò§ë§å§ð §Õ§Ý§Ú§ä§Ö§Ý§î§ß§à§ã§ä§î §á§Ö§â§Ú§à§Õ§Ñ §ß§Ö§Õ§à§ã§ä§Ú§Ø§Ú§Þ§à§ã§ä§Ú. §±§à §å§Þ§à§Ý§é§Ñ§ß§Ú§ð, UnreachablePeriod 45 §ã§Ö§Ü§å§ß§Õ. UnreachablePeriod §Õ§à§Ý§Ø§Ö§ß §Ò§í§ä§î §Ó §ß§Ö§ã§Ü§à§Ý§î§Ü§à §â§Ñ§Ù §Ò§à§Ý§î§ê§Ö, §é§Ö§Þ UnreachableDelay, §ä§Ñ§Ü §é§ä§à§Ò§í §ï§Ý§Ö§Þ§Ö§ß§ä§í §Õ§Ñ§ß§ß§í§ç §á§â§à§Ó§Ö§â§ñ§Ý§Ú§ã§î §á§à§Ó§ä§à§â§ß§à §Ò§à§Ý§Ö§Ö §à§Õ§ß§à§Ô§à §â§Ñ§Ù§Ñ §Õ§à §ä§à§Ô§à §Þ§à§Þ§Ö§ß§ä§Ñ, §Ü§Ñ§Ü §å§Ù§Ý§í §ã§Ö§ä§Ú §ã§ä§Ñ§ß§å§ä §ß§Ö§Õ§à§ã§ä§å§á§ß§í§Þ§Ú.

§¦§ã§Ý§Ú §ß§Ö§Ø§à§ã§ä§Ú§Ø§Ú§Þ§í§Û §å§Ù§Ö§Ý §ã§Ö§ä§Ú §Ù§Ñ§â§Ñ§Ò§à§ä§Ñ§Ö§ä, §ß§Ñ§Ò§Ý§ð§Õ§Ö§ß§Ú§Ö §Ù§Ñ §å§Ù§Ý§à§Þ §ã§Ö§ä§Ú §Ó§Ö§â§ß§Ö§ä§ã§ñ §Ü §ß§à§â§Þ§Ñ§Ý§î§ß§à§Þ§å §â§Ö§Ø§Ú§Þ§å §Ñ§Ó§ä§à§Þ§Ñ§ä§Ú§é§Ö§ã§Ü§Ú:

resuming Áú»¢¶Ä²© agent checks on host "New host": connection restored

§¯§Ö§Õ§à§ã§ä§å§á§ß§í§Û §å§Ù§Ö§Ý §ã§Ö§ä§Ú

§±§à§ã§Ý§Ö §ä§à§Ô§à §Ü§Ñ§Ü UnreachablePeriod §Ù§Ñ§Ó§Ö§â§ê§Ú§ä§ã§ñ §Ú §å§Ù§Ö§Ý §ã§Ö§ä§Ú §ß§Ö §ã§ä§Ñ§Ý §Õ§à§ã§ä§å§á§ß§í§Þ, §ä§Ñ§Ü§à§Û §å§Ù§Ö§Ý §ã§Ö§ä§Ú §ã§é§Ú§ä§Ñ§Ö§ä§ã§ñ §ß§Ö§Õ§à§ã§ä§å§á§ß§í§Þ.

§£ §Ø§å§â§ß§Ñ§Ý Áú»¢¶Ä²© §ã§Ö§â§Ó§Ö§â§Ñ §á§à§Õ§à§Ò§ß§à§Ö §Ù§Ñ§á§Ú§ã§í§Ó§Ñ§Ö§ä§ã§ñ §á§â§Ú§Þ§Ö§â§ß§à §ã§Ý§Ö§Õ§å§ð§ë§Ú§Þ §ã§à§à§Ò§ë§Ö§ß§Ú§Ö§Þ:

temporarily disabling Áú»¢¶Ä²© agent checks on host [New host]: host unavailable

§Ú §Ó §Ó§Ö§Ò-§Ú§ß§ä§Ö§â§æ§Ö§Û§ã§Ö §Ú§Ü§à§ß§Ü§Ñ §Õ§à§ã§ä§å§á§ß§à§ã§ä§Ú §å§Ù§Ý§Ñ §ã§Ö§ä§Ú §Þ§Ö§ß§ñ§Ö§ä §ã§Ó§à§Û §è§Ó§Ö§ä §ã §Ù§Ö§Ý§Ö§ß§à§Ô§à (§Ú§Ý§Ú §ã§Ö§â§à§Ô§à) §ß§Ñ §Ü§â§Ñ§ã§ß§í§Û (§à§Ò§â§Ñ§ä§Ú§ä§Ö §Ó§ß§Ú§Þ§Ñ§ß§Ú§Ö, §é§ä§à §á§â§Ú §ß§Ñ§Ó§Ö§Õ§Ö§ß§Ú§Ú §å§Ü§Ñ§Ù§Ñ§ä§Ö§Ý§ñ §Þ§í§ê§Ú §à§ä§à§Ò§â§Ñ§Ù§Ú§ä§ã§ñ §á§à§Õ§ã§Ü§Ñ§Ù§Ü§Ñ §ã §à§á§Ú§ã§Ñ§ß§Ú§Ö§Þ §à§ê§Ú§Ò§Ü§Ú):

§±§Ñ§â§Ñ§Þ§Ö§ä§â UnavailableDelay §à§á§â§Ö§Õ§Ö§Ý§ñ§Ö§ä, §Ü§Ñ§Ü §é§Ñ§ã§ä§à §ï§Ý§Ö§Þ§Ö§ß§ä§í §Õ§Ñ§ß§ß§í§ç §Ò§å§Õ§å§ä §á§â§à§Ó§Ö§â§ñ§ä§î§ã§ñ §á§à§Ó§ä§à§â§ß§à §á§à§Ü§Ñ §å§Ù§Ö§Ý §ã§Ö§ä§Ú §ß§Ö§Õ§à§ã§ä§å§á§Ö§ß.

§±§à §å§Þ§à§Ý§é§Ñ§ß§Ú§ð - §â§Ñ§Ù §Ó 60 §ã§Ö§Ü§å§ß§Õ (§ä§Ñ§Ü§Ú§Þ §à§Ò§â§Ñ§Ù§à§Þ, §Ó §ï§ä§à§Þ §ã§Ý§å§é§Ñ§Ö "§Ó§â§Ö§Þ§Ö§ß§ß§à§Ö §à§ä§Ü§Ý§ð§é§Ö§ß§Ú§Ö" §Ú§Ù §æ§Ñ§Û§Ý§Ñ §Ø§å§â§ß§Ñ§Ý§Ñ §Ó§í§ê§Ö §Ò§å§Õ§Ö§ä §à§Ù§ß§Ñ§é§Ñ§ä§î §Õ§Ö§Ñ§Ü§ä§Ú§Ó§Ñ§è§Ú§ð §á§â§à§Ó§Ö§â§à§Ü §ã§â§à§Ü§à§Þ §ß§Ñ §à§Õ§ß§å §Þ§Ú§ß§å§ä§å).

§¬§à§Ô§Õ§Ñ §ã§à§Ö§Õ§Ú§ß§Ö§ß§Ú§Ö c §å§Ù§Ý§à§Þ §ã§Ö§ä§Ú §Ò§å§Õ§Ö§ä §Ó§à§ã§ã§ä§Ñ§ß§à§Ó§Ý§Ö§ß§à, §ß§Ñ§Ò§Ý§ð§Õ§Ö§ß§Ú§Ö §Ù§Ñ §å§Ù§Ý§à§Þ §ã§Ö§ä§Ú §Ó§Ö§â§ß§Ö§ä§ã§ñ §Ü §ß§à§â§Þ§Ñ§Ý§î§ß§à§Þ§å §â§Ö§Ø§Ú§Þ§å §Ñ§Ó§ä§à§Þ§Ñ§ä§Ú§é§Ö§ã§Ü§Ú:

enabling Áú»¢¶Ä²© agent checks on host [New host]: host became available

Unavailable interface

After the UnreachablePeriod ends and the interface has not reappeared, the interface is treated as unavailable.

In the server log it is indicated by messages like these:

temporarily disabling Áú»¢¶Ä²© agent checks on host "New host": interface unavailable

and in the frontend the host availability icon goes from green/gray to yellow/red (the unreachable interface details can be seen in the hint box that is displayed when a mouse is positioned on the host availability icon):

The UnavailableDelay parameter defines how often an interface is checked during interface unavailability.

By default it is 60 seconds (so in this case "temporarily disabling", from the log message above, will mean disabling checks for one minute).

When the connection to the interface is restored, the monitoring returns to normal automatically, too:

enabling Áú»¢¶Ä²© agent checks on host "New host": interface became available