Adds predicting server failures experimental plugin#9000
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IsaacHughes74 wants to merge 1 commit intoapache:masterfrom
Closed
Adds predicting server failures experimental plugin#9000IsaacHughes74 wants to merge 1 commit intoapache:masterfrom
IsaacHughes74 wants to merge 1 commit intoapache:masterfrom
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Adding predicting_server_failures experimental plugin
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[approve ci] |
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Would be nice to add documentation |
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[approve ci autest] |
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[approve ci autest] |
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This pull request has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community. |
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Monitors data rate and server connections to predict origin server failure. Utilizes "death cross" of data rate, where data rate EMA with window size of 5s falls below data rate EMA with window size of 25s, while server connections increase. Slope and EMA calculations are maintained by a background thread periodically calculating statistics. The number of server connections is calculated by incrementing at
TS_EVENT_HTTP_SEND_REQUEST_HDRand decrementing atTS_EVENT_HTTP_TXN_CLOSE, and the data rate is calculated by dividing the content length of the response by the time betweenTS_MILESTONE_SERVER_BEGIN_WRITEandTS_MILESTONE_SERVER_CLOSE.Moving forward: