I try to adjust the new generation size so that it can handle all the
allocations needed for HTTP requests. Those short-lived objects should never
come from tenured space.
Even without facets, I run a pretty big new generation, 2 GB in an 8 GB heap.
The tenured space will always grow in Solr,
For what it’s worth, I looked into reducing the allocation footprint of
CollapsingQParserPlugin a bit, but without success. See
https://issues.apache.org/jira/browse/SOLR-9125
As it happened, I was collapsing on a field with such high cardinality that the
chances of a query even doing much
17.6.2016, 11.05, Bernd Fehling kirjoitti:
Am 17.06.2016 um 09:06 schrieb Ere Maijala:
16.6.2016, 1.41, Shawn Heisey kirjoitti:
If you want to continue avoiding G1, you should definitely be using
CMS. My recommendation right now would be to try the G1 settings on my
wiki page under the
Am 17.06.2016 um 09:06 schrieb Ere Maijala:
> 16.6.2016, 1.41, Shawn Heisey kirjoitti:
>> If you want to continue avoiding G1, you should definitely be using
>> CMS. My recommendation right now would be to try the G1 settings on my
>> wiki page under the heading "Current experiments" or the CMS
16.6.2016, 1.41, Shawn Heisey kirjoitti:
If you want to continue avoiding G1, you should definitely be using
CMS. My recommendation right now would be to try the G1 settings on my
wiki page under the heading "Current experiments" or the CMS settings
just below that.
For what it's worth, we're
Hey thanks for your reply.
Looks like running the suggested CMS config from Shawn, we're getting some
nodes with 30+sec pauses, I gather due to large heap, interestingly enough
while the scenario Jeff talked about is remarkably similar (we use field
collapsing), including the performance aspects
Check your gc log for CMS “concurrent mode failure” messages.
If a concurrent CMS collection fails, it does a stop-the-world pause while it
cleans up using a *single thread*. This means the stop-the-world CMS collection
in the failure case is typically several times slower than a concurrent
Hey Shawn! Thanks for replying.
Yes I meant HugePages not HugeTable, brain fart. I will give the
transparent off option a go.
I have attempted to use your CMS configs as is and also the default
settings and the cluster dies under our load (basically a node will get a
35-60s GC STW and then the
On 6/15/2016 3:05 PM, Cas Rusnov wrote:
> After trying many of the off the shelf configurations (including CMS
> configurations but excluding G1GC, which we're still taking the
> warnings about seriously), numerous tweaks, rumors, various instance
> sizes, and all the rest, most of which
I know this has been discussed in the past (although not too recently), but
the advices in those have failed us, so here we are.
Some basics:
We're running Solr 6 (6.0.0 48c80f91b8e5cd9b3a9b48e6184bd53e7619e7e3 -
nknize - 2016-04-01 14:41:49), on Java 8 (OpenJDK Runtime Environment
(build
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