On 13 Jun 2014, at 5:35 pm, Johan Huysmans <johan.huysm...@inuits.be> wrote:
> Hi, > > The PCMK_ipc_buffer was already set to 10000000 (10M). Try setting that in your environment too (otherwise the CLI tools wont know about the new value). Or grab a newer libqb which _should_ do the right thing anyway > > For testing I increased to buffer to 10000000 (100M), without results. > > I decreased the buffer to the default 20480 (20K) as it then shows the > suggested value. > If I leave it running for a couple of minutes I got these suggested values: > Jun 13 06:33:53 [62206] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (3854984 bytes suggested) > Jun 13 06:33:54 [62206] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (7709968 bytes suggested) > Jun 13 06:33:58 [62206] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (15419936 bytes suggested) > Jun 13 06:35:55 [62206] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (30839872 bytes suggested) > Jun 13 06:37:56 [62206] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (61679744 bytes suggested) > Jun 13 07:16:47 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (3952852 bytes suggested) > Jun 13 07:16:47 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (7905704 bytes suggested) > Jun 13 07:18:03 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (15811408 bytes suggested) > Jun 13 07:18:43 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (31622816 bytes suggested) > Jun 13 07:18:48 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (63245632 bytes suggested) > Jun 13 07:20:49 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (126491264 bytes suggested) > Jun 13 07:22:50 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (252982528 bytes suggested) > Jun 13 07:22:52 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (505965056 bytes suggested) > Jun 13 07:23:57 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (1011930112 bytes suggested) > Jun 13 07:24:51 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (2023860224 bytes suggested) > Jun 13 07:26:52 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (-247246848 bytes suggested) > Jun 13 07:27:22 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (-494493696 bytes suggested) > Jun 13 07:29:22 [44112] SRV-5-1 cib: error: crm_ipc_prepare: > Could not compress the message into less than the configured ipc limit (20480 > bytes).Set PCMK_ipc_buffer to a higher value (-988987392 bytes suggested) > > There is definitely something wrong. Is it the printing of the suggested > value or is it something else ? > > If I check the cib.xml files in /var/lib/pacemaker/cib/ all files are a bit > smaller then 300K. > > Changing these buffers did not solve my problem not getting results from > crm_mon. > > Gr. > Johan > > > On 13-06-14 01:13, Andrew Beekhof wrote: >> On 12 Jun 2014, at 10:53 pm, Johan Huysmans <johan.huysm...@inuits.be> >> wrote: >> >> >>> Hi All, >>> >>> I deployed Pacemaker 1.1.12-rc2 on our platform to test the cib changes. >>> This was needed on our setup as it contains 6 nodes, 150 resources and the >>> cib process was using lots of cpu. >>> >>> With a limited set of resources (6 nodes, 30 resources) everything worked >>> as expected, including crm_mon. >>> When loading the complete set of resources we lost the crm_mon >>> functionality on all nodes. >>> The cluster is running as expected (running all resources) however we don't >>> have any visibility. >>> >>> I noticed that operations performing changes did actually work like (crm >>> resource stop <resourcename>), >>> but crm resource status didn't work (using crmsh-2.0+git46-1.1.x86_64). >>> >>> I noticed that /dev/shm/qb-cib_ro* files are created, and lsof shows that >>> they are both opened by crm_mon and cib. >>> >>> >>> When executing "crm_mon -1" I get following messages in /var/log/messages >>> (and /var/log/pacemaker.log) >>> Jun 12 12:47:38 [8062] SRV-5-1 cib: notice: crm_ipcs_sendv: >>> Response 2 to 0x1810370[17836] (1091618 bytes) failed: Resource temporarily >>> unavailable (-11) >>> Jun 12 12:47:38 [8062] SRV-5-1 cib: warning: do_local_notify: >>> Sync reply to crm_mon failed: No message of desired type >>> >>> >>> Restarting the pacemaker and cman service of 1 node didn't solve it. >>> >>> >>> What is causing this problem and how can I resolve it ? >>> >> Almost certainly you're hitting IPC limits associated with large clusters. >> >> You should be able to tune: >> >> # PCMK_ipc_buffer=20480 >> >> In /etc/sysconfig/pacemaker and then restart the cluster. >> >> Note also: >> >> # For non-systemd based systems, prefix 'export' to each enabled line >> >> >> >> >> >> _______________________________________________ >> Pacemaker mailing list: >> Pacemaker@oss.clusterlabs.org >> http://oss.clusterlabs.org/mailman/listinfo/pacemaker >> >> >> Project Home: >> http://www.clusterlabs.org >> >> Getting started: >> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf >> >> Bugs: >> http://bugs.clusterlabs.org > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org
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