Details
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Bug
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Resolution: Fixed
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Major
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1.8.0
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Security Level: Public
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centos 5.7 64bit
Description
Install couchbase server 1.8.0r-703 with hotfix on 7 nodes.
Create a cluster with 4 nodes.
Load 6 million items to cluster to 2x dgm
Add 2 nodes 54 and 55 one by one to cluster and rebalance.
Remove 2 nodes 55 and 54 one by one out of cluster.
Add a new node 56 (not 2 nodes removed before) to cluster.
Check disk fetch on all node. See disk fetch on new added node is zero.
Check stats
[root@win32-2003-3 ~]# /opt/couchbase/bin/cbstats 10.1.3.50:11210 all | grep fetch
ep_bg_fetched: 9973
ep_tap_bg_fetch_requeued: 0
ep_tap_bg_fetched: 827004
[root@win32-2003-3 ~]# /opt/couchbase/bin/cbstats 10.1.3.51:11210 all | grep fetch
ep_bg_fetched: 8939
ep_tap_bg_fetch_requeued: 0
ep_tap_bg_fetched: 1072767
[root@win32-2003-3 ~]# /opt/couchbase/bin/cbstats 10.1.3.52:11210 all | grep fetch
ep_bg_fetched: 8605
ep_tap_bg_fetch_requeued: 0
ep_tap_bg_fetched: 1385824
[root@win32-2003-3 ~]# /opt/couchbase/bin/cbstats 10.1.3.53:11210 all | grep fetch
ep_bg_fetched: 9075
ep_tap_bg_fetch_requeued: 0
ep_tap_bg_fetched: 991581
[root@win32-2003-3 ~]# /opt/couchbase/bin/cbstats 10.1.3.56:11210 all | grep fetch
ep_bg_fetched: 0
ep_tap_bg_fetch_requeued: 0
ep_tap_bg_fetched: 0
[root@win32-2003-3 ~]#