I just switched it to nosql to use the mongo nosql setup on the server that is used for Horde cache - and the email times have dropped to about 0.5s.

Thanks Jan, that was the ticket. I think nosql is probably better performance anyway?

Probably yes.

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Jan Schneider

Since setting my IMAP cache to be nosql (mongo), every 5 or 6 hours mongo goes 100% CPU for 2 or 3 hours. The mongod log is a constant flow of messages, as follows below.

During this time, Imp seems to be slower again, like when IMAP caching was not working properly.

Then for some reason it will just stop. The log sequence shows the tail of it running flat out (triggering every 50 - 100ms), then stopping.

Any ideas?

Simon



2017-08-01T23:04:13.836+1000 I COMMAND [conn100] query horde.horde_cache query: { cid: "e471c4112fbd3a7374d6deaa2192039e" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59189 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:463 nreturned:1 reslen:605 locks:{ Global: { acquireCount: { r: 928 } }, Database: { acquireCount: { r: 464 } }, Collection: { acquireCount: { r: 464 } } } 133ms 2017-08-01T23:04:13.943+1000 I COMMAND [conn101] query horde.horde_cache query: { cid: "4c3e501b437e318e40097fe327d66ea6" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59180 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:464 nreturned:1 reslen:322 locks:{ Global: { acquireCount: { r: 930 } }, Database: { acquireCount: { r: 465 } }, Collection: { acquireCount: { r: 465 } } } 123ms 2017-08-01T23:04:14.024+1000 I COMMAND [conn100] query horde.horde_cache query: { cid: "e471c4112fbd3a7374d6deaa2192039e" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59189 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:464 nreturned:1 reslen:605 locks:{ Global: { acquireCount: { r: 930 } }, Database: { acquireCount: { r: 465 } }, Collection: { acquireCount: { r: 465 } } } 173ms 2017-08-01T23:04:14.050+1000 I COMMAND [conn73] query horde.horde_cache query: { cid: "0a6536c57d01c2ea148c511301648064" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59182 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:463 nreturned:1 reslen:765 locks:{ Global: { acquireCount: { r: 928 } }, Database: { acquireCount: { r: 464 } }, Collection: { acquireCount: { r: 464 } } } 160ms 2017-08-01T23:04:15.010+1000 I COMMAND [conn73] query horde.horde_cache query: { cid: "7f626b12cffb4951d3f569c6d2f0d3cd" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59184 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:463 nreturned:1 reslen:736 locks:{ Global: { acquireCount: { r: 928 } }, Database: { acquireCount: { r: 464 } }, Collection: { acquireCount: { r: 464 } } } 101ms 2017-08-01T23:04:15.248+1000 I COMMAND [conn101] query horde.horde_cache query: { cid: "f73608d48bef65a48f2a887a510b397b" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59183 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:463 nreturned:1 reslen:701 locks:{ Global: { acquireCount: { r: 928 } }, Database: { acquireCount: { r: 464 } }, Collection: { acquireCount: { r: 464 } } } 106ms 2017-08-01T23:04:30.409+1000 I NETWORK [conn95] end connection 127.0.0.1:47564 (26 connections now open) 2017-08-01T23:04:35.415+1000 I NETWORK [conn49] end connection 127.0.0.1:40664 (25 connections now open) 2017-08-01T23:04:37.417+1000 I NETWORK [conn99] end connection 127.0.0.1:56114 (24 connections now open) 2017-08-01T23:04:39.419+1000 I NETWORK [conn64] end connection 127.0.0.1:42526 (23 connections now open) 2017-08-01T23:04:43.423+1000 I NETWORK [conn92] end connection 127.0.0.1:47472 (22 connections now open) 2017-08-01T23:04:47.427+1000 I NETWORK [conn78] end connection 127.0.0.1:44930 (21 connections now open) 2017-08-01T23:04:51.432+1000 I NETWORK [conn86] end connection 127.0.0.1:45858 (20 connections now open) 2017-08-01T23:04:56.434+1000 I NETWORK [conn83] end connection 127.0.0.1:45694 (19 connections now open) 2017-08-01T23:05:08.004+1000 I COMMAND [conn74] query horde.horde_cache query: { cid: "cae0be8ca4bcc7fe642c2498640c0af4" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59188 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:463 nreturned:1 reslen:440 locks:{ Global: { acquireCount: { r: 928 } }, Database: { acquireCount: { r: 464 } }, Collection: { acquireCount: { r: 464 } } } 106ms 2017-08-01T23:05:08.232+1000 I COMMAND [conn91] query horde.horde_cache query: { cid: "7f626b12cffb4951d3f569c6d2f0d3cd" } planSummary: COLLSCAN ntoskip:0 keysExamined:0 docsExamined:59184 cursorExhausted:1 keyUpdates:0 writeConflicts:0 numYields:464 nreturned:1 reslen:736 locks:{ Global: { acquireCount: { r: 930 } }, Database: { acquireCount: { r: 465 } }, Collection: { acquireCount: { r: 465 } } } 102ms 2017-08-01T23:05:33.484+1000 I NETWORK [conn97] end connection 127.0.0.1:56032 (18 connections now open)

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Simon Wilson
M: 0400 12 11 16

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