I've seen posts of the "800 node wall" with mcollective/activemq, but
nothing recent
(http://ramblings.narrabilis.com/books/masteringpuppet/mcollective).
Is there a logical limit of nodes that a collective can contain? I'm
working in an environment that currently has about 27,000 nodes - they are
broken up into separate collectives, but some collectives have several
thousand nodes (up to 9,000) and growing. Running "mco inventory --lc"
will most times report back in the 27k range, but more and more that number
is significantly less (with some collectives not even showing up) - in the
hundreds instead of 10's of thousands...
Stopping and restarting the activemq brokers, will "fix" this most of the
time.
Running puppet 3.6.2, mcollective-puppet 1.7.2, and activemq 5.9.1
Currently have 7 collectives configured, each collective has either one or
two brokers, but the "main" broker (and the largest collective) has 3
brokers (master +2 slaves)
~]$ mco inventory --lc --dt=120
Collective Nodes
========== =====
col5_mcollective 136
col4_mcollective 282
col2_mcollective 1276
col7_mcollective 3059
col6_mcollective 3451
col3_mcollective 6744
col1_mcollective 12115
mcollective 27064
Total nodes: 27064
~]$ mco inventory --lc --dt=120
Collective Nodes
========== =====
col5_mcollective 138
col4_mcollective 284
col7_mcollective 3062
col6_mcollective 3433
mcollective 6918
Total nodes: 6918
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