Service 'memcached' exited with status 134 - 7.0 beta

I’ve installed the couchbase 7.0 beta (the docker image that is) and set up a very basic one node server with only a couple of thousand documents. Almost every time i go to the documents tab in the web interface or run any kind of query the server seems to crash and restart. I get the following in the log:

Service 'memcached' exited with status 134. Restarting. Messages:
2021-07-06T07:36:01.113527+00:00 CRITICAL #10 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x16e423]
2021-07-06T07:36:01.113530+00:00 CRITICAL #11 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x1688d2]
2021-07-06T07:36:01.113535+00:00 CRITICAL #12 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x2c1e90]
2021-07-06T07:36:01.113539+00:00 CRITICAL #13 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x2aa14a]
2021-07-06T07:36:01.113543+00:00 CRITICAL #14 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x2c4e49]
2021-07-06T07:36:01.113547+00:00 CRITICAL #15 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x166f18]
2021-07-06T07:36:01.113549+00:00 CRITICAL #16 /opt/couchbase/lib/libep.so() [0x7fcc7e946000+0x166df3]
2021-07-06T07:36:01.113583+00:00 CRITICAL #17 /opt/couchbase/lib/libstdc++.so.6() [0x7fcc7dd70000+0xc2cdf]
2021-07-06T07:36:01.113606+00:00 CRITICAL #18 /lib/x86_64-linux-gnu/libpthread.so.0() [0x7fcc7dbe5000+0x9609]
2021-07-06T07:36:01.113629+00:00 CRITICAL #19 /lib/x86_64-linux-gnu/libc.so.6(clone+0x43) [0x7fcc7d9f3000+0x122293]

There seem to be at least two more topics with similar issues but none have received any attention and they are for different versions. Any idea what’s going on here?

I tried starting up another project that also uses couchbase and that has been running fine for a while. That one won’t even start anymore and I get the following output from docker:

lms_couchbase | 2021-07-06 08:45:47.643069 
lms_couchbase |     client_info: undefined
lms_couchbase |     label: {gen_server,terminate}
lms_couchbase |     last_message: {die,{abnormal,3}}
lms_couchbase |     log: []
lms_couchbase |     name: <0.141.0>
lms_couchbase |     reason: {abnormal,3}
lms_couchbase |     state: {state,ns_server,5000,-576460729631096955,undefined,infinity}
lms_couchbase | 2021-07-06 08:45:47.643297 crash_report        #{label=>{proc_lib,crash},report=>[[{initial_call,{supervisor_cushion,init,['Argument__1']}},{pid,<0.141.0>},{registered_name,[]},{error_info,{exit,{abnormal,3},[{gen_server,handle_common_reply,8,[{file,"gen_server.erl"},{line,751}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,249}]}]}},{ancestors,[<0.140.0>,child_ns_server_sup,ns_babysitter_sup,<0.106.0>]},{message_queue_len,0},{messages,[]},{links,[<0.140.0>]},{dictionary,[]},{trap_exit,true},{status,running},{heap_size,2586},{stack_size,27},{reductions,8745}],[]]}
lms_couchbase | 2021-07-06 08:45:47.643697 crash_report        #{label=>{proc_lib,crash},report=>[[{initial_call,{erlang,apply,['Argument__1','Argument__2']}},{pid,<0.140.0>},{registered_name,[]},{error_info,{exit,{abnormal,3},[{restartable,loop,4,[{file,"src/restartable.erl"},{line,69}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,249}]}]}},{ancestors,[child_ns_server_sup,ns_babysitter_sup,<0.106.0>]},{message_queue_len,0},{messages,[]},{links,[<0.117.0>]},{dictionary,[]},{trap_exit,true},{status,running},{heap_size,6772},{stack_size,27},{reductions,3555}],[]]}
lms_couchbase | 2021-07-06 08:45:47.644109 supervisor_report   #{label=>{supervisor,child_terminated},report=>[{supervisor,{local,child_ns_server_sup}},{errorContext,child_terminated},{reason,{abnormal,3}},{offender,[{pid,<0.140.0>},{id,{ns_server,"/opt/couchbase/lib/erlang/bin/erl",["+A","16","-smp","enable","+sbt","u","+P","327680","+K","true","+swt","low","+sbwt","none","+MMmcs","30","+e102400","-setcookie","nocookie","-kernel","logger","[{handler, default, undefined}]","-user","user_io","-run","child_erlang","child_start","ns_bootstrap","--","-smp","enable","-kernel","logger","[{handler, default, undefined}]","inetrc","\"/opt/couchbase/etc/couchbase/hosts.cfg\"","dist_config_file","\"/opt/couchbase/var/lib/couchbase/config/dist_cfg\"","-proto_dist","cb","-epmd_module","cb_epmd","-ssl_dist_optfile","/opt/couchbase/etc/couchbase/ssl_dist_opts","-kernel","global_enable_tracing","false","-couch_ini","/opt/couchbase/etc/couchdb/default.ini","/opt/couchbase/etc/couchdb/default.d/capi.ini","/opt/couchbase/etc/couchdb/default.d/geocouch.ini","/opt/couchbase/etc/couchdb/local.ini"],[{env,[{"NS_SERVER_BABYSITTER_PID","44"},{"CHILD_ERLANG_ENV_ARGS","[{ns_babysitter,\n     [{cookiefile,\n          \"/opt/couchbase/var/lib/couchbase/couchbase-server.babysitter.cookie\"},\n      {nodefile,\n          \"/opt/couchbase/var/lib/couchbase/couchbase-server.babysitter.node\"},\n      {pidfile,\"/opt/couchbase/var/lib/couchbase/couchbase-server.pid\"}]},\n {ns_server,\n     [{loglevel_access,info},\n      {loglevel_views,debug},\n      {loglevel_rebalance,debug},\n      {loglevel_ns_server,debug},\n      {error_logger_mf_dir,\"/opt/couchbase/var/lib/couchbase/logs\"},\n      {disk_sink_opts,\n          [{rotation,\n               [{compress,true},\n                {size,41943040},\n                {num_files,10},\n                {buffer_size_max,52428800}]}]},\n      {loglevel_error_logger,debug},\n      {path_config_tmpdir,\"/opt/couchbase/var/lib/couchbase/tmp\"},\n      {max_r,20},\n      {path_config_datadir,\"/opt/couchbase/var/lib/couchbase\"},\n      {loglevel_user,debug},\n      {loglevel_cbas,debug},\n      {loglevel_cluster,debug},\n      {path_config_libdir,\"/opt/couchbase/lib\"},\n      {nodefile,\"/opt/couchbase/var/lib/couchbase/couchbase-server.node\"},\n      {loglevel_menelaus,debug},\n      {path_config_secdir,\"/opt/couchbase/etc/security\"},\n      {path_config_bindir,\"/opt/couchbase/bin\"},\n      {disk_sink_opts_json_rpc,\n          [{rotation,\n               [{compress,true},\n                {size,41943040},\n                {num_files,2},\n                {buffer_size_max,52428800}]}]},\n      {loglevel_couchdb,info},\n      {path_config_etcdir,\"/opt/couchbase/etc/couchbase\"},\n      {max_t,10},\n      {loglevel_xdcr,debug},\n      {loglevel_ns_doctor,debug},\n      {loglevel_default,debug},\n      {config_path,\"/opt/couchbase/etc/couchbase/static_config\"},\n      {net_kernel_verbosity,10},\n      {loglevel_stats,debug},\n      {loglevel_mapreduce_errors,debug}]}]"},{"ERL_CRASH_DUMP","erl_crash.dump.1625561118.44.ns_server"}]},exit_status,use_stdio,stream,eof]}},{mfargs,{restartable,start_link,[{supervisor_cushion,start_link,[ns_server,5000,infinity,ns_port_server,start_link,[#Fun<ns_child_ports_sup.4.12324699>]]},86400000]}},{restart_type,permanent},{shutdown,infinity},{child_type,worker}]}]}

Could this be related to an update of the docker engine or something? It’s the only reason I can think of since I haven’t rebuilt the old image.

Creating a new server with docker run -d --rm --name testdb -p 8091-8094:8091-8094 -p 11210:11210 couchbase:community-7.0.0-beta produces the same error, but switching to 6.6.0 does not so is this a bug in the beta when running in docker? We have a 7.0 server on a dedicated debian machine (not running docker) that doesn’t seem to have this issue.