.. _config_network_filters_zookeeper_proxy: ZooKeeper proxy =============== The ZooKeeper proxy filter decodes the client protocol for `Apache ZooKeeper `_. It decodes the requests, responses and events in the payload. Most opcodes known in `ZooKeeper 3.5 `_ are supported. The unsupported ones are related to SASL authentication. .. attention:: The zookeeper_proxy filter is experimental and is currently under active development. Capabilities will be expanded over time and the configuration structures are likely to change. .. _config_network_filters_zookeeper_proxy_config: Configuration ------------- The ZooKeeper proxy filter should be chained with the TCP proxy filter as shown in the configuration snippet below: .. code-block:: yaml filter_chains: - filters: - name: envoy.filters.network.zookeeper_proxy config: stat_prefix: zookeeper - name: envoy.tcp_proxy config: stat_prefix: tcp cluster: ... .. _config_network_filters_zookeeper_proxy_stats: Statistics ---------- Every configured ZooKeeper proxy filter has statistics rooted at *zookeeper..* with the following statistics: .. csv-table:: :header: Name, Type, Description :widths: 1, 1, 2 decoder_error, Counter, Number of times a message wasn't decoded request_bytes, Counter, Number of bytes in decoded request messages connect_rq, Counter, Number of regular connect (non-readonly) requests connect_readonly_rq, Counter, Number of connect requests with the readonly flag set ping_rq, Counter, Number of ping requests auth._rq, Counter, Number of auth requests for a given type getdata_rq, Counter, Number of getdata requests create_rq, Counter, Number of create requests create2_rq, Counter, Number of create2 requests setdata_rq, Counter, Number of setdata requests getchildren_rq, Counter, Number of getchildren requests getchildren2_rq, Counter, Number of getchildren2 requests remove_rq, Counter, Number of delete requests exists_rq, Counter, Number of stat requests getacl_rq, Counter, Number of getacl requests setacl_rq, Counter, Number of setacl requests sync_rq, Counter, Number of sync requests multi_rq, Counter, Number of multi transaction requests reconfig_rq, Counter, Number of reconfig requests close_rq, Counter, Number of close requests setwatches_rq, Counter, Number of setwatches requests checkwatches_rq, Counter, Number of checkwatches requests removewatches_rq, Counter, Number of removewatches requests check_rq, Counter, Number of check requests .. _config_network_filters_zookeeper_proxy_dynamic_metadata: Dynamic Metadata ---------------- The ZooKeeper filter emits the following dynamic metadata for each message parsed: .. csv-table:: :header: Name, Type, Description :widths: 1, 1, 2 , string, "The path associated with the request, response or event" , string, "The opname for the request, response or event" , string, "The string representation of the flags applied to the znode" , string, "The size of the request message in bytes" , string, "True if a watch is being set, false otherwise" , string, "The version parameter, if any, given with the request"