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Diffstat (limited to 'system/zookeeper/README')
| -rw-r--r-- | system/zookeeper/README | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/system/zookeeper/README b/system/zookeeper/README new file mode 100644 index 0000000000..a752f3834e --- /dev/null +++ b/system/zookeeper/README @@ -0,0 +1,16 @@ +ZooKeeper is a centralized service for maintaining configuration information, +naming, providing distributed synchronization, and providing group services. +All of these kinds of services are used in some form or another by distributed +applications. Each time they are implemented there is a lot of work that goes +into fixing the bugs and race conditions that are inevitable. Because of the +difficulty of implementing these kinds of services, applications initially +usually skimp on them ,which make them brittle in the presence of change and +difficult to manage. Even when done correctly, different implementations of +these services lead to management complexity when the applications are +deployed. + +This script requires a 'zookeeper' user/group to exist before running. +The recommended UID/GID is 322. You can create these like so: + +groupadd -g 322 zookeeper +useradd -u 322 -g 322 -c "Zookeeper user" -d /var/lib/zookeeper -s /bin/sh zookeeper |