Can you paste the full output from the 'stats' command against the server? Also: "stats settings" would be great.
Also; do you know anything about your data? what the TTL's are, for instance? It's possible a bunch of stuff expires, which can get reclaimed quickly by some processes depending on your start arguments. On Thu, 22 Jun 2017, red 888 wrote: > Oh sorry! Version 1.4.34. > > On Thursday, June 22, 2017 at 4:52:18 PM UTC-4, Dormando wrote: > Think I've asked this a few times; what version are you running? > > On Thu, 22 Jun 2017, red 888 wrote: > > > So when I look at my stats I see no cmd_flush commands are being run. > cmd_flush is 0 > and stays at 0. > > > > On Thursday, June 22, 2017 at 12:44:28 PM UTC-4, Dormando wrote: > > Looks like a weird access pattern. you're filling memory, > evicting a bit, > > then losing all of it at once. Is your "cmd_flush" counter > increasing? > > > > On Thu, 22 Jun 2017, red 888 wrote: > > > > > If I look at the slab stats over time I see the % of > chunks_used (relative to > > total_chunks) spike up (some slab classes hit 45% some hit 75%) > then spike > > > down and at the same time they are spiking down evictions > spike up. This > happens about > > every 2-4 minutes. > > > > > > I've attached a screen shot of this pattern in a time series > (raw stats not > > phpmemchacheadmin). In the graphs I'm filtering for just one > slab class but I > > > see this for all the most active slabs ( roughly 5 active > slab classes). > > > Inline image 2 > > > > > > On Jun 21, 2017 2:27 PM, "dormando" <[email protected]> wrote: > > > Is the evictions counter increasing all the time? It > might only be > > > completely full sometimes, which would cause evictions > (like during > peak). > > > > > > if used is less than total but evictions is going up, > either you have an > > > old broken version of memcached or that > phpmemcachedadmin thing is wrong, > > > and you should just look at the output of the "stats > items" and "stats > > > slabs" commands. > > > > > > On Wed, 21 Jun 2017, red 888 wrote: > > > > > > > Here is a snap shot of one of my slab class's stats > (from > PHPMemcachedAdmin): > > > > > > > > [Capture.PNG] > > > > > > > > > > > > So what I'm confused about is why, with my > used_chunks so low, am I > getting > > evictions for this slab class? > > > > > > > > > > > > used_chunks are chunks with items that have not > expired yet and > total_chunks is > > all allocated chunks including chunks with items that > > > _have_ expired > > > > correct? > > > > > > > > > > > > If thats the case it means if 25% of the allocated > chunks are "used" > and 75% of > > the allocated chunks have expired. So it should have plenty > > > of chunks to > > > > reclaim before having to evict I would think. > > > > > > > > > > > > > > > > -- > > > > > > > > --- > > > > You received this message because you are subscribed > to the Google > Groups > > "memcached" group. > > > > To unsubscribe from this group and stop receiving > emails from it, send > an email > > to [email protected]. > > > > For more options, visit > https://groups.google.com/d/optout. > > > > > > > > > > > > > > -- > > > > > > --- > > > You received this message because you are subscribed to > a topic in the > Google > > Groups "memcached" group. > > > To unsubscribe from this topic, visit > > > https://groups.google.com/d/topic/memcached/VXm-hnGzqXY/unsubscribe. > > > To unsubscribe from this group and all its topics, send > an email to > > [email protected]. > > > For more options, visit > https://groups.google.com/d/optout. > > > > > > -- > > > > > > --- > > > You received this message because you are subscribed to the > Google Groups > "memcached" > > group. > > > To unsubscribe from this group and stop receiving emails from > it, send an email > to > > [email protected]. > > > For more options, visit https://groups.google.com/d/optout. > > > > > > > > > > -- > > > > --- > > You received this message because you are subscribed to the Google > Groups "memcached" > group. > > To unsubscribe from this group and stop receiving emails from it, > send an email to > > [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > > > > > -- > > --- > You received this message because you are subscribed to the Google Groups > "memcached" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > > -- --- You received this message because you are subscribed to the Google Groups "memcached" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
